Operation Manual - Анкаanka.bg/bg/interacoustics/audiometers/AD629_OM.pdf · 3.1 Back Panel External Connections ... this apparatus is connected to one or ... This audiometer

Operation Manual

Diagnostic Audiometer AD629

8011706 Rev. 2 – ver. 01/2013

Table of Contents

1 Introduction .................................................................................................................. 1

1.1 Intended Use ...................................................................................................................... 1

1.2 Precautions ......................................................................................................................... 1

1.3 Warranty............................................................................................................................. 2

1.4 Safety Regulations .............................................................................................................. 3

1.5 List of Symbols .................................................................................................................... 4

1.6 Manufacturer ..................................................................................................................... 4

2 Unpacking/Inspection .................................................................................................. 5

2.1 Check Box and Contents for Damage ................................................................................. 5

2.2 Store Carton for future Shipment ...................................................................................... 5

2.3 Contents of Shipment ........................................................................................................ 5

2.4 Reporting Imperfections..................................................................................................... 5

2.5 Care and Maintenance ....................................................................................................... 6

2.6 How to clean Interacoustics Products ................................................................................ 6

3 Getting Started: Setup and Installation ...................................................................... 7

3.1 Back Panel External Connections – Standard Accessories ................................................. 8

3.2 PC-Interface ........................................................................................................................ 8

4 Functions of Buttons .................................................................................................. 9

4.1 AD629 Versions ................................................................................................................ 12

5 Patient Communication ............................................................................................. 13

5.1 Talk Forward ..................................................................................................................... 13

5.2 Talk Back ........................................................................................................................... 13

6 Client and Session Handling ..................................................................................... 15

6.1 Saving Sessions and Creating Clients ................................................................................ 15

6.2 Viewing Stored Sessions ................................................................................................... 16

7 Pure Tone Presentation ............................................................................................. 19

7.1 General about Air and Bone Conduction ......................................................................... 19

7.2 Common Test Use ............................................................................................................ 19

7.2.1 Insert Earphones ................................................................................................. 20

7.2.2 Tone/Warble ........................................................................................................ 20

7.2.3 Pulsed Tones ........................................................................................................ 20

7.2.4 Free Field ............................................................................................................. 20

7.2.5 Extended Range ................................................................................................... 21

7.2.6 Attenuator Steps ................................................................................................. 21

7.2.7 Measurement Type ............................................................................................. 21

7.2.8 Tone Tests ............................................................................................................ 21

7.2.9 High Frequency Audiometry (optional license) ................................................... 21

7.3 Manual Air Conduction Testing ........................................................................................ 22

7.3.1 Headphone Placement ........................................................................................ 22

7.3.2 Background Noise ................................................................................................ 22

7.3.3 Instruction to Subject .......................................................................................... 22

7.3.4 Familiarization ..................................................................................................... 22

7.3.5 Threshold Determination using the Ascending Method ..................................... 22

7.4 Bone Conduction .............................................................................................................. 23

7.4.1 AC-BC Gap ............................................................................................................ 23

7.4.2 Cross Damping (BC) ............................................................................................. 23

8 Masking ..................................................................................................................... 25

8.1 General Considerations about Masking ........................................................................... 25

8.1.1 Cross Damping ..................................................................................................... 25

8.1.2 Normal Masking .................................................................................................. 25

8.1.3 Masking using Insert Earphones .......................................................................... 25

8.1.4 Over Masking ....................................................................................................... 25

8.1.5 Synchronous Masking .......................................................................................... 25

8.1.6 Masking Information ........................................................................................... 26

8.1.7 Minimum masking Level for Masking out the Sound in the non-test Ear ........... 26

8.1.8 Maximum Masking .............................................................................................. 27

8.2 Masking Procedure- Step by Step (Hoods Plateau) .......................................................... 27

9 Speech Testing .......................................................................................................... 29

9.1 General info about Speech Audiometry ........................................................................... 29

9.2 General Speech Testing .................................................................................................... 29

9.2.1 Speech Audiometry in Graph Mode .................................................................... 30

9.2.2 Speech Audiometry in Table mode ..................................................................... 31

9.2.3 Input Level for Speech Presentation ................................................................... 31

9.2.4 Speech Recognition Threshold (SRT) ................................................................... 31

9.2.5 Automatic Speech Scoring ................................................................................... 32

9.2.6 Number of words ................................................................................................. 32

9.2.7 Use of the 2nd Channel (e version only) ............................................................... 32

9.2.8 Masking and Speech ............................................................................................ 32

9.3 Speech Testing using Wave files (Pre-recorded speech material) ................................... 33

9.3.1 Installing Wave files ............................................................................................. 34

9.4 Speech Testing with external CD or MP3 Player .............................................................. 35

10 Settings/Setup and User Protocols .......................................................................... 37

10.1 Tone Settings and User Protocols .................................................................................... 37

10.2 Speech Settings and User Protocols ................................................................................. 40

10.3 Common Instrument Settings .......................................................................................... 41

10.4 Installing Print Logo, Symbols and Wave files (Pre-recorded speech) ............................. 43

10.4.1 Print Logo and Audiogram Symbols .................................................................... 43

10.4.2 Wave files (Pre-recorded speech) ....................................................................... 43

11 Other (Special) Tests ................................................................................................. 45

11.1 Auto Threshold Hughson Westlake (HW)......................................................................... 45

11.2 Békésy ............................................................................................................................... 46

11.3 ABLB .................................................................................................................................. 47

11.4 Stenger Test ...................................................................................................................... 48

11.5 Tone in Noise ................................................................................................................... 49

11.6 Master Hearing Aid ........................................................................................................... 50

11.7 SISI (Short Increment Sensitivity Index) ........................................................................... 51

11.8 QuickSIN ........................................................................................................................... 51

12 Parts List .................................................................................................................... 53

13 Diagnostic suite with AD629 ..................................................................................... 55

13.1 Instrument setup .............................................................................................................. 55

13.1.1 SYNC Mode .......................................................................................................... 56

13.1.2 The Sync Tab ........................................................................................................ 56

13.1.3 Client Upload ....................................................................................................... 57

13.1.4 Session download ................................................................................................ 57

14 Technical Specifications ........................................................................................... 59

Common AD629 Use Scenarios ....................................................................................... 66

Appendix A General maintenance

Appendix B Survey of Reference and max Hearing Level Tone Audiometer

Appendix C Pin Assignment

Appendix D Common AD629 Use Scenarios

AD629 Operating Manual Page 1

1 Introduction

1.1 Intended Use The AD629 diagnostic audiometer is designed to be a device for diagnosing hearing loss. Output and specificity of this type of device are based on the test characteristics defined by the user, and may vary depending on environmental and operating conditions. The diagnosing of hearing loss using this kind of diagnostic audiometer depends on the interaction with the patient. However, for patients not responding well possibilities of various tests allow the tester to have at least some evaluative result. Thus, a “normal hearing” result should not allow for ignoring other contra indications in this case. A full audiologic evaluation should be administered if concerns about hearing sensitivity persist. The AD629 audiometer is intended to be used by an audiologist, hearing healthcare professional or trained technician in an extremely quiet environment. Careful handling of the instrument whenever in contact with a patient should be of high priority. Calm and stable positioning while testing is preferred for optimal accuracy. It is recommended that the instrument be operated with an ambient temperature range of 15-35 degree Celsius (59-95 degrees Fahrenheit).

1.2 Precautions

1. No modification of this equipment is allowed without Interacoustics authorization.

Interacoustics will make available on request circuit diagrams, component part lists, descriptions, calibration instructions, or other information that will assist service personnel to repair those parts of this audiometer that are designated by the Interacoustics as repairable by service personnel

1. Never insert or in any way use the insert headset without a new clean non defect test tip. If

this apparatus is connected to one or more other devices with medical CE marking, to make up a system or pack, the CE marking is only valid also for the combination if the supplier has issued a declaration stating that the requirements in the Medical Device Directive article 12 are fulfilled for the combination.

2. It is recommended that parts which are in direct contact with the patient (e.g. earphone cushions) are subjected to standard disinfecting procedure between patients. This includes physically cleaning and use of a recognized disinfectant. Individual manufacturer's instruction should be followed for use of this disinfecting agent to provide an appropriated level of cleanliness.

3. It is recommended that the disposable foam ear tips supplied with the optional EarTone5A insert transducers are replaced after each patient tested. Disposable plugs also insure that

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Used with the safety alert symbol, indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

is used to address practices not related to personal injury


sanitary conditions exist for each of your patients, and that periodic cleaning of a headband or cushion is no longer required.

• The black tubing protruding the foam ear tip is attached to the sound tube nipple of the insert transducer.

• Roll the foam tip into the smallest possible diameter. • Insert into the ear canal of the patient. • Hold the foam tip until expanded and a seal is achieved. • After testing the patient the foam tip including the black tubing is detached from the sound

tube nipple. • The insert transducer should be examined prior to attaching a new foam tip.

1. Be sure to use only stimulation intensities, which will be acceptable for the patient.

2. The transducers (headphones, bone conductor, etc.) supplied with the instrument are

calibrated to this instrument - exchange of transducers requires a new calibration.

3. Although the instrument fulfils the relevant EMC requirements precautions should be taken to avoid unnecessary exposure to electromagnetic fields, e.g. from mobile phones etc. If the device is used adjacent to other equipment it must be observed that no mutual disturbance appears.

4. Within the European Union it is illegal to dispose electric and electronic waste as unsorted municipal waste. Electric and electronic waste may contain hazardous substances and therefore has to be collected separately. Such products will be marked with the crossed-out wheeled bin shown below. The cooperation of the user is important in order to ensure a high level of reuse and recycling of electric and electronic waste. Failing to recycle such waste products in an appropriate way may endanger the environment and consequently the health of human beings.

5. To prevent system faults take appropriate precautions to avoid PC viruses and similar.

1.3 Warranty

INTERACOUSTICS warrants that: The AD629 is free from defects in material and workman ship under normal use and

service for a period of 24 months from the date of delivery by Interacoustics to the first purchaser.

Accessories are free from defects in material and workmanship under normal use and service for a period of ninety (90) days from the date of delivery by Interacoustics to the first purchaser.

If any product requires service during the applicable warranty period, the purchaser should communicate directly with the local Interacoustics service centre to determine the appropriate repair facility. Repair or replacement will be carried out at Interacoustics’ expense, subject to the terms of this warranty. The product requiring service should be returned promptly, properly packed, and postage prepaid. Loss or damage in return shipment to Interacoustics shall be at purchaser's risk. In no event shall Interacoustics be liable for any incidental, indirect or consequential damages in connection with the purchase or use of any Interacoustics product.


This shall apply solely to the original purchaser. This warranty shall not apply to any subsequent owner or holder of the product. Furthermore, this warranty shall not apply to, and Interacoustics shall not be responsible for, any loss arising in connection with the purchase or use of any Interacoustics product that has been:

repaired by anyone other than an authorized Interacoustics service representative; altered in any way so as, in Interacoustics judgement, to affect its stability or reliability; subject to misuse or negligence or accident, or which has had the serial or lot number

altered, effaced or removed; or improperly maintained or used in any manner other than in accordance with the

instructions furnished by Interacoustics.

This warranty is in lieu of all other warranties, express or implied, and of all other obligations or liabilities of Interacoustics, and Interacoustics does not give or grant, directly or indirectly, the authority to any representative or other person to assume on behalf of Interacoustics any other liability in connection with the sale of Interacoustics products.

INTERACOUSTICS DISCLAIMS ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FOR FUNCTION OF FITNESS FOR A PARTICULAR PURPOSE OR APPLICATION.

1.4 Safety Regulations

Electrical Safety: This audiometer is specified to comply with the international standard IEC 60601-1.

This audiometer is guaranteed according to IEC 60601-1 safety against electrical hazard only when the connected notebook/computer is powered by batteries or the computers power supply complies with IEC 60601-1 safety regulations.

To avoid the risk of electric shock, this equipment must only be connected to supply mains with protective earth." This audiometer is not suitable for operation in an oxygen rich environment, in conjunction with flammable agents or flammable anesthetics.


1.5 List of Symbols

Symbol Explanation

Type B applied parts. Patient applied parts that are not conductive and can be immediately released from the patient.

Refer to instruction manual

WEEE (EU-directive) This symbol indicates that when the end-user wishes to discard this product, it must be sent to separate collection facilities for recovery and recycling.

0123

The CE-mark indicates that Interacoustics A/S meets the requirements of Annex II of the Medical Device Directive 93/42/EEC. TÜV Product Service, Identification No. 0123, has approved the quality system.

Year of manufacture

1.6 Manufacturer

Interacoustics A/S

Drejervænget 8 DK 5610 Assens Denmark

Phone: +45 6371 3555 Fax: +45 6371 3522

E-mail: [email protected]

Web: www.interacoustics.com


2 Unpacking/Inspection

2.1 Check Box and Contents for Damage When the instrument is received please check the shipping box for any rough handling or damage. If the box is damaged it should be kept until the contents of the shipment have been checked mechanically and electrically. If the instrument is faulty, please contact the nearest service office. Keep the shipping material for the carrier’s inspection and insurance claim.

2.2 Store Carton for future Shipment The AD629 comes in its own shipping carton which is specially designed for the AD629. Please store this carton; it will be needed if the instrument has to be returned for service. If service is required please contact your nearest sales and service office.

2.3 Contents of Shipment As standard, AD629 is delivered with the following: Included parts DD45 Audiometric headset

B71 Bone conductor APS3 Patient response button Goose neck microphone Power cable Operation manual CD Multilingual CE instructions for use

Optional parts Diagnostic Suite software OtoAccess database 21925 Amplivox audiocups, noise reducing headset Carrying case (Standard or Trolly Style) EARTone3A/5A Audiometric insert phones HDA200 Audiometric headset with double mono 6.3mm jack TDH39 Audiometric headset HDA280 Phone headset with double mono 6.3mm jack CIR33 Insert earphone set for masking or monitoring Talk back microphone Sound field speakers SP90 (with external power amp) AP12 Power Amplifier 2x12 Watt AP70 Power Amplifier 2x70 Watt

Check numbers on AD629 The identification label on the connection panel holds the serial number. This should be checked with the manual number and written down for later service claims.

2.4 Reporting Imperfections

Inspect before connection: Prior to connecting the AD629 to the Power Supply it should be inspected once more for damage. All of the cabinet and the accessories should be checked visually for scratches and missing parts.

Report any faults immediately: Any missing part or malfunction should be reported immediately to the supplier of the instrument together with the invoice, serial number and detailed report of the problem. In the back of this manual a “Return Report” can be found, where you can describe the problem.

Please use “Return Report”: Please realize that if the service engineer does not know what the problem is to look for, he may not find it. Therefore using the Return Record will be of great help to us and at the same time it is guaranteed that the correction to your problem will be to satisfaction.


2.5 Care and Maintenance The performance and reliability of the AD629 will be prolonged if the following recommendations for care and maintenance are adhered to: Great care when handling the headset: Great care should be considered when handling the headset as dropping it may alter the calibration.

Annual Calibration: The AD629 had been designed to provide many years of reliable service, but annual calibration is recommended due to possible impact on transducers.

We also required calibrating the AD629; if something drastic happens to a part of it (e.g. headset or bone conductor is dropped on a hard surface).

2.6 How to clean Interacoustics Products

Before cleaning always switch off and disconnect from the power supply Use a soft cloth lightly dampened with cleaning solution to clean all exposed surfaces Do not allow liquid to come in contact with the metal parts inside the earphones / headphones Do not autoclave, sterilize or immerse the instrument or accessory in any fluid Do not use hard or pointed objects to clean any part of the instrument or accessory Do not let parts that have been in contact with fluids dry before cleaning Rubber ear-tips or foam ear-tips are single use components Ensure that isopropyl alcohol does not come into contact with any screens on the instruments Ensure that isopropyl alcohol does not come into contact with any silicone tubes or rubber

parts Recommended cleaning and disinfection solutions:

Warm water with mild, nonabrasive cleaning solution (soap) Normal hospital bactericides 70% isopropyl alcohol only on hard cover surfaces

Procedure

Clean the instrument by wiping outer case with a lint free cloth lightly dampened in cleaning solution.

Clean cushions and patient hand switch and other parts with a lint free cloth lightly dampened in cleaning solution.

Make sure not to get moisture in the speaker portion of the earphones and similar parts


3 Getting Started: Setup and Installation

The following shows an overview of the AD629:

The top left part of the AD629 (display holder) contains monitor speaker.

The left side of the instrument contains two mini jack connectors for a microphone and a headphone – or a headset. This is used for talkback headphone/speaker (TB) and talk forward microphone (TF).

A goose neck microphone can be plugged into the top part of the instrument just above the Talk Forward button. This can be used for talk forward. When not plugged in the goose neck microphone can be placed underneath the display. Please refer to the section about patient communication for more details.

The upper right side of the instrument holds the on/off switch of the instrument.

Back Panel - connectors

Microphone

and

Headphone

(Headset)

mini jacks

Power

on/off

Front Panel

display &

buttons/dials Talk

forward

mic.

Monitor

speaker


3.1 Back Panel External Connections – Standard Accessories The back panel contains all the rest of the main connectors (sockets):

3.2 PC-Interface

Please refer to the Diagnostic Suite operation manual regarding on-line and PC-operated mode as well as patient/session data transfer.

Power

connector

4 USB connectors

for printer, PC-

connection &

keyboard

LAN (for

future

use)

Free Field 1

and 2

(external

amplification)

Standard

Headphones

DD45/TDH39/

HDA200

Standard

Insert Phone

EarTone 3A

Bone

conductor

B71

Insert

masking

Patient

Response

Switch

Extra Talk

forward

mic., e.g. for

table mic.

External

CD / MP3

input

For Talk Back

Mic.

USB B

Connector for

PC Connection


4 Functions of Buttons

The figure below shows the outline of the front plate of the AD629 including buttons, dials and display:

The following table describes the functions of the various buttons and dials.

Name(s)/Function(s) Description

1 Microphone For live voice speech and talk forward instruction to the patient in the test cabin. (Please find it behind the display if it’s not already connected.) See 21.

2 Talk back Speaker For speech feedback from the patient in the test cabin.

3 Color Display Screen

For displaying the different test screens. Will be further explained in the sections describing the individual tests.

4 Tone and Response Indicator

Indication light seen when a tone is presented to the patient. Indication light seen when the patient activates the patient signal using the patient response.

5 Channel 1 Indicates intensity level for channel 1, e.g.:

(19)

(21)

(4)

(3)

(5)

(15) (16) (7) (8) (9) (10) (11) (12) (13) (14)

(17)

(18) (20)

(22) (23) (24) (25) (26) (27) (28)

(29) (30) (31) (32) (33) (34) (35) (36)

(37) (38)

(39) (40) (41) (43) (42)

(2)

(6)

(1)

(4)


6 Masking / Channel 2 Indicates masking or Intensity level for channel 2, e.g.:

7-14

Function Keys

These keys are context sensitive and depend on the selected test screen. Will be further explained in the sections describing the individual tests.

15 Shift The shift function will enable the clinician to activate the sub functions written in italic underneath the buttons.

16 Setup Allows the clinician to make changes in certain settings within each test. By default it will enter the settings of the actual (selected) test, e.g. Tone. To change the setting of another test hold down the Setup button and use the left dial to select the individual test settings. This Common instrument setting is also accessed from here. To save the changes as default (for the next session) press SaveAs (14). Please refer to the Settings/Setup section on how to create multiple user settings (protocols). Choose between the different settings using the right rotary wheel (43). Change the individual settings using the left rotary wheel (41).

17 Tests This is also where the special tests are accessed: Hold down the Tests button and use left dial to select the individual tests.

18 Delete / del curve

Delete points during testing delete. Delete the entire test curve of a graph by holding “Shift (15)” together with this button.

19 Save Session/ New Session

Saving a session after testing or alternatively add a new session by holding the “Shift (15)” together with this button. (A new session will recall the default settings saved)

20 Print Clients

Allows results to be printed directly after testing (via a supported USB printer). Press ”Shift (15)+Print” to access the clients stored on the device.

21 Talk Forward Instruction to the patient directly through his headphones via the microphone can be given. The intensity changes by turning the “HL dB” (41) while holding the “Talk Forward” button. See 1.

22 Tone / Warble Pure tones or warble tones can be chosen as stimuli by activating this button once or twice. The stimuli chosen will be shown on the display, e.g.:

23 Wave file Enables one to perform speech testing using loaded wave files, i.e. pre-recorded speech material. Please see setup under Setup (15). Requires installation of speech material.


24 Mic For live speech testing through the microphone (1). The VU meter

can be seen on the display screen. Adjust the microphone gain by holding down the Mic button for one second.

25 1 CD 2 By pressing this function once or twice it is possible to have recorded speech in either channel 1 or channel 2 separately. Adjust the gain of CD 1 and 2 by holding down the CD button for one second.

26 Ext Range Extended Range: Usually the maximum output is e.g. 100dB but if a higher output e.g. 120 dB is needed then “Ext Range” can be activated when reaching a certain level.

27

Ch 1 Monitor 2

With the activation of this button, presentation to the patient from e.g. CD can be heard through the built in monitor of the AD629 or monitor headset in both channel 1 or 2. Adjust the gain by holding down the button for one second.

28 Talk Back Talk back, when active allows the clinician to hear comments or responses from the patient through the AD629 or monitor headset. Adjust the gain by holding down the button for one second.

29 Right / Insert For selecting the right ear during testing. Insert phones for the right ear can be activated by pressing twice (can only be selected when calibrated).

30 Left / Insert For selecting the left ear during testing. Insert phones for the left ear can be activated by pressing twice (can only be selected when calibrated).

31 R Bone L For bone conduction testing (can only be selected when calibrated).

First push: selects the right ear for testing. Second push: selects the left ear for testing.

32 1 FF 2 Pressing “1 FF 2” will select free field speaker as output for

Channel 1 (can only be selected when calibrated). First push: Free Field speaker 1 Second push: Free Field speaker 2


33 Man / Rev Manual / Reverse tone presentation modes: First push: Manual tone presentation each time “Tone

Switch” (42) is activated. Second push: The reverse function- continuous tone

presentation which will be interrupted each time “Tone Switch” (42) is activated.

34 Single / Multi Pulsing modes: First push: the tone presented will have a pre-set length

when “Tone Switch” is activated. (Set up in the “Setup” (16)).

Second push: the tone will be pulsing continuously. Third push: returns back to normal mode.

35 Mask On/Off Masking channel on/off:

First push: turns masking on

Second push: turns masking off

36 Sync This allows the masking attenuator to the tone attenuator to be activated. This option is used for e.g. synchronous masking.

37 Store Use this function to store test thresholds / results.

38 No Resp Use this function if the patient has shown no response to stimuli.

39 Down / Incorrect Used to decrease the frequency level. The AD629 has an incorporated automatic speech score counter. Therefore as a second function you can use this button as an “Incorrect” button when performing speech tests. For automatic speech score counting while testing speech push this button after each word not heard correctly by the patient.

40 Up / Correct Used to increase the frequency level. The AD629 has an incorporated automatic speech score counter. Therefore as a second function you can use this button as a “Correct” button when performing speech tests. For automatic speech score counting while testing speech push this button after each word heard correctly by the patient.

41 HL db Channel 1 This allows for the adjusting of the intensity in channel 1 shown at (5) in the display.

42

Tone Switch / Enter

Used for tone presentation where the “Tone” light (4) will show. Can also be used as “Enter” (selection) button.

43 Masking Channel 2 Adjust the intensity level in channel 2 or masking levels when masking is used. Shown at (6) in the display.

4.1 AD629 Versions AD629 come in different versions, so all the special tests presented in this manual may not be available on your instrument. High Frequency (8-20 KHz) and two-way PC-connectivity (online mode and PC-operated mode via the Diagnostic Suite) can be added by additional licenses.

Please refer to the Diagnostic Suite operation manual regarding on-line and PC-operated mode as well as patient/session data transfer.


5 Patient Communication

The operator may communicate with the patient using Talk Forward (when speaking to the patient) and Talk Back (when listening to the patient). Please find the connection overview in the previous section.

5.1 Talk Forward Talk Forward is activated by the “Talk Forward” button (21). AD629 contains three microphone connectors which will work in the following priority (depending on which one(s) is connected): Priority 1: The mini jack in the left side of the instrument – can be used with a headset together

with the headphone connector. This has the first priority. Priority 2: The swan neck microphone (1) of the AD629 is located above the “Talk Forward” (21)

button. If no mic. is connected to the priority 1 mic., this will be used. Priority 3: The pack panel contains a “Mic 2” mini jack connector that can also be used for talk

forward, e.g. with an external table mic. If no mic. is connected to the priority 1 or 2 mic., this will be used.

The image below will be shown while the talk forward is active (by hold the button down) where the calibration (gain) level and intensity level for patient communication can be adjusted. To change the calibration level the clinician would adjust the HL db dial (41) to the appropriate level. To adjust the Intensity level the dial in channel 2 (43) would be used.

5.2 Talk Back The operator may use Talk Back in one of the following ways:

If no headphone is connected to the Talk Back (left side connector), the voice is wired through the Talk Back speaker next to the display (2).

If a headphone/headset is connected to the instrument, talk back with come through this instead.



6 Client and Session Handling

This section describes how to store clients and sessions and how to view stored data.

6.1 Saving Sessions and Creating Clients Test results can be saved by selecting “Save Session” (19). First a dialog with the list of clients is presented:

To create a new client, click “Save Session” then “New”. There may be 500 patients saved in the AD629 memory. Each client can have a number (in theory unlimited) of sessions (i.e. measurement test data) stored under it. Use the main dial (41) to scroll up and down in the list of clients. If you want to create a new client, press “New” and the following patient creation dialog appears:

Use the two dials (41) (43) to move the cursor to select the appropriate number/letter. Press the Tone Switch / Enter button (42) to choose number/letter.


Press Next to go to next dialog. Finally Press Save to store the session under the newly created (selected) client. To edit or delete clients use: Edit or Delete.

6.2 Viewing Stored Sessions To view a stored session (audiogram test data) for a specific client press “Shift (15)” + “Print (20)” (subject ‘clients’).A dialog with the clients stored on the AD629 will be shown:

Press to view the session for the selected client. The list of session data stored under the clients name will then be shown – here 6 sessions are stored at different dates:

The following options are now available – using function keys:

“Delete” (11) is used to delete old sessions. “Trans” (12) is used to transfer old sessions to the current session. “View” (13) is used for viewing stored sessions. “Back” (14) is used to go back to the client list view.

When viewing a stored session the follow screen is presented.


Using the function keys, the different tests can be accessed. Select “Next” to toggle through the various test available under this session. Use “Trans” (13) to transfer the session data to the current session. Use “Back” (14) to go back to the session list.

Pressing the Print button while viewing the session will print the session using the printer if a supported USB printer is connected. See example print below:



7 Pure Tone Presentation

7.1 General about Air and Bone Conduction Hearing threshold levels can be determined by air conduction and bone conduction testing. In air conduction audiometry the test signal is presented to the patient via earphones. In bone conduction audiometry the test signal is presented via a bone vibrator placed on the mastoid or forehead of the patient. It is recommended to start threshold testing with air conduction first, followed by bone conduction testing.

7.2 Common Test Use

1) Select desired test ear with buttons marked “Right” and “Left” (29), (30). 2) Select what type of presentation you wish to use either manual or reverse tones by pressing

“Man Rev” (33). Manual presentation is activated each time the “Tone switch” (42) is pressed. Reverse will be a continuous tone and interrupted each time the “Tone switch” (42) is pressed.

3) Select desired frequency with “Down” and “Up” (39), (40). 4) Change intensity with (41), where turning right increases the intensity and left decreases the

intensity. 5) Present tone by pressing the “Tone Switch” (42). 6) Save the threshold by pressing “Store” (37). 7) Delete saved point by pressing “Del Point” (18). 8) If there is no response given by the patient press “No Response” (38). 9) Print audiogram and save session (19) – see example of a print out below (to a support USB

PC printer):


7.2.1 Insert Earphones Insert earphones may be preferred over headphones as the interaural attenuation is higher than with headphones, thus reducing the probability of air conduction masking. It is also easier and less combersome to use insert earphones during masking in bone conduction testing. Furthermore one may find insert earphones useful for pediatric testing, where the child may refuse to wear headphones. Inserts should also be used in situations where older patients have suffered from collapsed ear canals and testing with normal headphones would just not be reliable. Insert earphones can be activated by pressing “Right Insert” or “Left Insert” (29), (30) twice.

7.2.2 Tone/Warble For pure tone testing either pure tone or warble stimulation can be selected. Warble presentation can be useful for subjects difficult to test, such as children, where the clinician wants to vary the stimulation. Warble tones are additionally used for free field testing. Pure tone or warble can be selected by pressing “Tone Warble” (22) once or twice.

7.2.3 Pulsed Tones The clinician may choose to use either a single tone for each pure tone presentation or the option of pulsed tones. Pulsed tones are useful for patients with tinnitus who find it difficult to discriminate between the tone and their tinnitus. Single or pulsed tones can be selected by pressing “Single Multi” (34) once or twice.

7.2.4 Free Field Free field audiometry is a behavioral test obtained in a sound treated room. Free field testing is useful for difficult to test subject like infants, or with children who refuse to wear headphones. Aided thresholds can also be obtained through free field testing. Free field testing can be selected by pressing “1 FF 2” (32) once or twice according to which speaker you wish to use.


7.2.5 Extended Range The extended range is used to expand the testing range by adding 20dB at each frequency. Press Ext Range(26) to activate. Extended range can be activated when testing at a level of at least 50 dB (this will semi-highlight the button LED light)

7.2.6 Attenuator Steps Smaller attenuator steps are useful for advanced pure tone tests such as SISI and assist with site of lesion information. The clinician may choose between attenuator steps of 1dB, 2dB or 5dB by pressing “1, 2, 5 dB” (7).

7.2.7 Measurement Type MCL and UCL levels are useful procedures to obtain for hearing aid fittings as well as before speech presentation so that the clinician is aware of what intensity levels the patient finds most comfortable. A choice between HL, MCL or UCL can be selected by pressing “Meas.type” (8), holding the button down and using the HL db dial (41) to select the measurement type.

The menu shown below will be seen when Measurement Type is selected.

7.2.8 Tone Tests Advanced tests become useful for site of lesion functions, hearing aid fittings and instances where the subject’s results may be unreliable. These tests are described in more detail in chapter 7 Normal, Stenger, ABLB or Tone in Noise (optional license) can be selected by pressing “Tests” (17):

7.2.9 High Frequency Audiometry (optional license) High frequency audiometry (between 8 KHz and 20 KHz) is presented the same way as normal air conduction audiometry. It is useful when testing for hearing impairments caused by ototoxicity, noise exposure or acoustic traumas, as these usually affect the high frequency range.

(HF zoom)


7.3 Manual Air Conduction Testing Air conduction audiometry is used to establish a hearing threshold at different frequencies. The test can specify the AC loss but gives no information regarding any abnormality in the conductive mechanism or sensorineural mechanism.

7.3.1 Headphone Placement Remove eyeglasses and earrings if possible and position the headphones over the top of the head. Place the rubber cushions so that the diaphragms are aimed directly at the opening of the ear canal. Pull the yokes of the earphones to adjust the fitting. If the cushions are not tight on the ears, the test result will show false results at lower frequencies.

7.3.2 Background Noise Background noise can give false test results, especially at lower frequencies. If necessary the TDH39 can be used with Audiocups Exlosures type 21925. Alternatively the Peltor noise reducing headset can be supplied type 50250. Please contact the distributor should you require these optional parts.

7.3.3 Instruction to Subject Prior to threshold testing the following instructions should be given to the test subject: “You will now hear different tones at different intensities. Please press the response button every time you hear the tone and release the button when you do not hear the tone”.

7.3.4 Familiarization Start with the subject’s better ear at 1000 Hz. The tone should be presented at at least 40dB in the test ear, which should be sufficient enough to evoke a clear response from the subject. Then present a tone which is completely attenuated. If the subject does not response to a tone at 40dB, present tones 10dB higher until a response occurs. Then reduce the tone level by 20dB. In either case gradually increase the level until a response occurs. Repeat the tone presentation at the same level. If the responses are consistent, the familiarization is completed. If not, it should be repeated.

7.3.5 Threshold Determination using the Ascending Method Manual or reversed pulses may be used. If manual pulses are used, they should be at least one second in duration.

1) Present a tone which is 10dB lower than the threshold obtained during the familiarization procedure. If the response fails, increase in 5dB steps until the subject responds.

2) Decrease by 10dB and begin another ascending level series. Continue with this until three out of a maximum of five responses at the same level occur. Almost the same results will be obtained, when two responses out of three tone presentations occur at the same level and frequency. If less than two responses out of three (or less than three out of five) have been obtained at the same level, present a tone 10dB higher than the last response and repeat the procedure.

3) Proceed to the next frequency. Decrease the level by 10dB and begin another ascending level series. Continue until you get three out of five responses at the same level.

4) Repeat the familiarization procedure. If the difference is 5dB or less move on to the next ear. If the difference is 10dB or higher, repeat the test at further frequencies in the same order until agreement to 5dB or less has been obtained.

5) Proceed until both ears have been tested.


7.4 Bone Conduction The purpose of bone conduction testing is to present the test tone directly to the cochlea, via bone conduction of the skull, bypassing the middle ear. This is to establish inner ear hearing thresholds.

7.4.1 AC-BC Gap The difference between the AC threshold and BC threshold or AC-BC indicates that there something blocking or attenuating the sound when it passes through the middle ear. This is of great diagnostic importance as it may indicate the need for medical attention. The bone conductor is placed behind the test ear directly on the mastoid, where the tone is best heard. Press the “R Bone L” button (25) and continue to test the same way as air conduction.

7.4.2 Cross Damping (BC) For bone conduction testing, cross damping of the head is only 5 to 10dB and therefore both cochleas will be stimulated by the same intensity. Therefore masking should ALWAYS be used during bone conduction testing, unless both ears air conduction thresholds are within 10dB of the best tone thresholds at all test frequencies.



8 Masking

8.1 General Considerations about Masking The purpose of masking is to apply a signal (noise) to the non-test ear to prevent it from responding for the ear being tested. For bone conduction testing the masking is always supplied via the contralateral earphone. The earphone must always be placed over the non-test ear when BC testing is being performed. It is advisable to warn the patient that they will hear a noise in their non test ear which they should not respond to.

Masking noise is calibrated as ipsilateral effective masking: The masking intensity will just mask the tone if they were presented to the same ear.

When the masking and tone are connected to opposite ears, the tone is damped by the cross damping of the head. The actual damping of the tone from the test ear to the masked ear will therefore depend on the actual test: AC or BC (as well as the frequency tested).

8.1.1 Cross Damping Cross damping of the head for AC is 40-50dB. Cross damping of the head for BC is 0-10dB.

8.1.2 Normal Masking 1) Masking can be activated by pressing “Mask On/Off” (35). The AD629 will then automatically

set itself up for masking. 2) Deactivation of masking requires pressing (35) again. 3) The type of noise can be changed by selecting “Setup” (16) and using (41) to scroll to

“Masking type” and (43) to select Narrow Band NB or White Noise WN.

8.1.3 Masking using Insert Earphones A more efficient masking can be obtained by using insert earphones for masking instead of TDH39 earphones. This insert earphone is equipped with a suitable ear tip and inserted into the ear canal of the ear being masked and the masking procedure is the same. As the test ear is open during the BC test with insert masking, it is important that the test is performed in a sound cabin with no background noise.

When masking via normal TDH39 earphones during BC testing, the earphone over the test ear can be moved a little forward, opening the ear. This will prevent the occlusion effect at lower frequencies, especially 125-750Hz.

8.1.4 Over Masking In cases where there may be a danger of over-masking, masking by insert earphones is recommended. This improves the cross hearing if the masking sound from approximately 40dB with a traditional headphone to approximately 70dB with the insert 5A Earphones.

1) Insert the earphone in the ear which needs to be masked 2) Follow the normal masking procedure

8.1.5 Synchronous Masking If you want to perform synchronous masking the attenuator in channel 2 is locked to the attenuator in channel 1 in terms of frequency selection. By selecting “Sync” (36) after masking has been activated this allows one to change the pure tone intensity and masking intensity equally.


8.1.6 Masking Information The AD629 allows one to store and display masking information when testing. To activate this function press “Mask info” (12) which will allow one too see the masking values at each frequency. The table below shows the masking information display.

Masking info can’t be shown while using the HF view mode or using the “show ch1 and ch2 in a single audiogram” setting.

8.1.7 Minimum masking Level for Masking out the Sound in the non-test Ear Without AC-BC loss in the masked ear: The AC tone level minus 50dB (ACdB-50dB). With AC-BC loss in the masked ear: The AC tone level minus 50dB plus the AC-BC loss of the masked ear. (AC dB-50dB + AB gap of the masked ear). The minimum masking level required for BC will be: The BC tone level minus 5dB (Tone AC -0 to 5dB) presumed that the masked ear has no middle ear loss (difference between AC and BC thresholds).

If there is a conductive loss, the masking intensity should be increased by this loss as the masking to the masked ear is AC sound, which of course will be damped by the AC-BC loss in the masked ear.

If the BC tone is set to 50dB, the minimum masking intensity will be 50dB to the masked ear without middle ear loss: 50dB – (0 to 5) dB = 45 to 50 dB

If the masked ear has and Air Bone loss of 20dB, the minimum masking will be: 50 dB – (0 to 5) dB + 20dB = 65 to 70dB.


8.1.8 Maximum Masking Maximum masking is the highest level of masking intensity which does not change the true threshold of the test ear. When ears with large AC-BC gaps are tested, the audiologist must be aware of the masking dilemma, where minimum masking becomes over- masking without finding a plateau where the masking is correct. For AC tests: Tone AC+ 50dB For BC tests: Tone BC+ 50dB

8.2 Masking Procedure- Step by Step (Hoods Plateau) In air and bone conduction testing, hearing threshold levels of both ears are determined separately. Therefore, under specified conditions, masking noise shall be applied to the non test ear (contra lateral ear).

1) Find the unmasked thresholds for air conduction and then for the better ear by bone conduction – see air and bone conduction.

2) Notify the subject that masking will be used. Tell the subject that they will be hearing noise which they are not to respond to, only the test signal.

3) Select input: tone and output: “Right” (29), “Left” (30) or “R Bone L” (31). Select “Mask On/Off“ (35) once to activate the masking. Set the intensity (41) to the test ear at the level of the unmasked threshold by means of a rotary manner.

4) Increase the masking in 10dB steps by means of the rotary switch for channel 2 and ask the subject to let you know when he first hears the noise.

5) When the subject has heard the noise the test should begin. 6) Begin the threshold shift procedure from this starting point (the (43) dial set to the unmasked

threshold level for the test ear, and the masking at the point it is first heard by the subject). 7) Present the test tone, if the subject hears it they should indicate by pressing the response

button. Increase the noise by 10dB and present the test tone again. Continue the procedure as follows: - Whenever the test tone is heard, increase the masking level by 10dB. Whenever the test

tone is not heard increase it in 5dB steps until it is heard. - Continue until a sequence occurs where the threshold remains the same over a series of

masking noise increases. This level is equivalent to the “Plateau” and the tone stimulus level can be considered to be the threshold for the frequency under test.

An option is to continue increasing the masking level until over masking occurs. Over- masking becomes noticeable because when this level is reached, each 10dB noise increase will result in a 10dB threshold increase. Caution should be used in air conduction testing because over- masking may not occur. This will be true especially when unmasked results actually represented the true thresholds. In this case, the threshold may not change even over a very wide range of noise levels. Over masking occurs more in BC testing.

8) As soon as the masked threshold is determined, reduce the noise to a level below the subject’s threshold.

9) Record the masked thresholds with appropriate symbols. Do not record both unmasked and masked. Indicate the type of noise utilized and the upper level of the noise when the masked threshold is determined.



9 Speech Testing

9.1 General info about Speech Audiometry Speech audiometry is the process of presenting speech signals to establish your patient’s ability to understand everyday communication. This is essential when it comes to hearing aid fittings and helping determine how the patient is processing speech. Furthermore it helps a clinician confirm pure tone results and may help to diagnose whether a hearing loss may be cochlear or whether it comes from the auditory nerve. Speech testing can be performed in a number of ways. Speech Reception Thresholds (SRT) are usually established first and refers to the intensity level at which a patient can repeat 50% of the presented words correctly. SRT scores serve to confirm pure tone results and set a starting point from where further speech testing should start. Word Recognition (WR) represents the number of words correctly given from a list of words as a percentage. Prior to speech testing the intensity of the speech signal must be calibrated according to the requirements of the audiometer.

9.2 General Speech Testing To start speech testing press one of the following buttons: (23), (24) and (25):

The use of Wave File and CD/MPG3 input will be further explained below.

Graph or table mode can be selected in “Setup” (16):


9.2.1 Speech Audiometry in Graph Mode

1) The graph shows the curves of the recorded speech graph and will be displayed here. The x-axis shows the intensity of the speech signal and the y-axis shows the score in percent. The percentage is also displayed in the black display in the upper part of the screen together with a word counter.

2) The norm curves illustrate norm values for S (Single Syllabic) and M (Multi Syllabic) speech material respectively.

3) The shaded area illustrates how high intensities the system will allow. The “Ext Range”

(26) +20 dB button can be pressed to go higher. The maximal loudness is determined by the transducer calibration.


9.2.2 Speech Audiometry in Table mode

The AD629 consists of 5 different tables which can be changed in “Meas type” (8), either SRT HL/SRT MCL/SRT UCL/WR1/WR2/WR3.

The SRT table allows for measuring multiple SRTs using different test parameters, e.g. Transducer, Test Type, Intensity, Masking, Score, and Aided.

The WR table allows for measuring multiple WR scores using different parameters (e.g. Transducer, Test Type, Intensity, Masking, score and Aided).

9.2.3 Input Level for Speech Presentation For speech presentation the input level needs to be set at 0 VU in order to obtain correct calibration and therefore reliable testing. To view and adjust the input level one would “Press and Hold” the input key related to the input you require to test. For e.g. if you wish to adjust the VU in CD presentation press and hold down the “1 CD 2” (25) button until the input menu is shown. Use the dial (41) to make changes in channel 1 and the dial (43) to change the VU level in channel 2. The mic. gain level can also be adjusted by holding down the Mic. (24) button for a second.

The picture below shows an example of the Input level for Mic/CD presentation.

9.2.4 Speech Recognition Threshold (SRT) The SRT score can be used to cross check the air conduction audiometry and it is generally accepted that if the SRT and Pure Tone Average (PTA) are within ± 6dB of each other the reliability is good. If it is ± 7dB to 12 dB it is adequate, and if greater then ± 13 dB it is poor.


1) Select the SRT function. 2) Start with the better ear and set the intensity to 15dB above the PTA. 3) Begin presenting the speech material and reduce the intensity in 5dB steps for every correctly

repeated word (1 or 2 dB procedures may also be used if preferred by the clinician) use the button “Store” (37) to save the SRT.

If the SRT is not in accordance with the air conduction thresholds, the air conduction audiogram should be checked and the procedure repeated if necessary.

9.2.5 Automatic Speech Scoring With the AD629 it is possible to automatically score speech results, which is as follows:

1) Present a word to the subject. 2) Every time the patient gets the word correct press “Up” (40). Every time the patient gets the

word incorrect press “Down” (39).

3) Continue with this procedure until the word list has been completed. 4) The correct word percentage will be indicated on the display screen e.g. 80% correct

responses.

9.2.6 Number of words

The number of words used can be setup in the in “Setup” menu (16) when you use mic and CD. If you use wavefiles the words will automatically be set.

9.2.7 Use of the 2nd

Channel (e version only)

The 2nd channel can be activated by pressing the button . This feature is only available on the extended version of AD629..

9.2.8 Masking and Speech Speech noise as masking can be activated/deactivated by pressing “Mask On/Off” (35) and turning the dial (43) for the desired intensity level. In “Setup” (16) it is possible to choose between SN (speech noise) and WN (white noise):


9.3 Speech Testing using Wave files (Pre-recorded speech material) The screen shot below shows the wave file table when “Wave file (23)” speech testing has been selected:

In this case a speech wave table will be show the pre-recorded speech material – if wave file speech material has been installed on the instrument:

Wave File testing can be setup in “Setup” (16):

For Wave File installation, please see below. The wave file panel can run the 3 different modes Manual: When manual is selected, it allows the operator to manually select which word to

play. Use “Shift” (15) + channel 1 dial (41) to change selected word. Use “Tone Switch” (42) to play word.

Continue: When continue is selected the words will be played in a sequence automatically after each scoring.


Time Out: When timeout is selected, it works like the continue mode, but with a time-out on each word. When no response is given, e.g. within 2 sec (like in the settings above), it will automatically score the word correct or incorrect depending on the setting.

The time to wait before playing the next word after scoring can be also for continuous and time out modes, e.g. 3 sec like above.

Typical test procedure:

1) Select “Wave file” (23), the type of speech material can be selected with the “Type” (11) function. Use the HL db dial (41) to select the different items from the lists.

2) Different lists can be changed in the “List” (12) option. Use the HL db dial (41) to select the different items in the lists.

3) To start and stop the stimuli use the functions. In continue

and timeout modes it is also possible to pause the test: . 4) Use the Up/Down frequency buttons to score Incorrect (39) or Correct (40):

5) The way words are played depends on the wave file running mode – please see above.

9.3.1 Installing Wave files

1. Insert the USB memory containing the wave file speech material. Please inquire your local distributor for wave files available in your area.

2. Go to “Tests” (17) and then press the button. 3. After installation select “Wave File” (23) to run the test. 4. The test can be setup under “Setup” (16) – see in instructions in previous sections.


9.4 Speech Testing with external CD or MP3 Player Instead of microphone and wave file input it’s also possible to run speech from an external CD or MP3 player:

1. Connect the CD/MP3 player to the connector marked “CD” at the back of the panel of AD629. 2. Select “1 CD 2” (25) 3. Adjust the input levels slider(s) for the selected CD player (by holding the CD button in for a

sec) until you reach an average of approximately 0 dB VU on the VU meter. You may also use the CD player’s volume control to adjust the VU meter, should the slider bar not be sufficient.

4. When the VU meter is adjusted the CD input is ready for use. The speech performance can be scored using the buttons in the upper part of the speech screen.

5. Use the automatic speech scoring function to save your results. 6. Use the Up/Down frequency buttons to score Incorrect (39) or Correct (40):

7. In the extended AD629 the button can be used to play the speech material

binaurally in each channel (ear side)


.


10 Settings/Setup and User Protocols

This section describes the different test and common settings. “Setup” (16) contains the common settings as well as the settings for the individual tests –

tone, speech, etc.

10.1 Tone Settings and User Protocols The setup menu allows the clinician to make changes to settings in the selected protocol. Settings can be changed by pressing the “Setup” (16) function. A menu will appear where different tests can be select – hold down the Setup (16) button and use the ch1 dial (41) to select the test setup to change.

As a default it will go to the actual (selected) test, e.g. Tone as in the following. Use the ch1 dial (41) to scroll and the ch2 dial (43) to select the changes in the actual settings dialog shown below.

- “Save all setting as” provides the possibility of saving the changes that have been made in the current user protocol or to create a new – if you don’t save, the changes will only be applied temporarily for the current test session (when creating a new session it will go back to the default saved settings).

- “Load user settings: …” will load the selected user setting, e.g. “hello”

The following dialog shows the Tone settings:


Aided provides the possibility to test the patient based on the fact that they are fitted with hearing aids and therefore wish to obtain aided thresholds.

Binaural option is used if the patient is fitted with hearing aids binaurally. Masking type allows the clinician to select which masking input would be required for testing.

Either Narrow Band (NB) or White Noise (WN) can be chosen. Measurement type allows the choice of either Hearing Level (HL)/ Most Comfortable

Loudness (MCL) level or Uncomfortable Loudness (UCL) level for pure tone presentation. Show Ch1 and Ch2 in a single audiogram is used to either show channel 1 and 2

separately on the audiogram or together as a single audiogram. Store masking information on screen shows a table format way of storing and displaying

masking levels. Show Banana overlay Magnify the head up display Show European CPT-AMA index can be selected to show in test representation. The

European CPT-AMA is calculated to ensure that the different frequencies are weighted correctly.

Show PTA (Fletcher) index on the audiogram, which is estimated automatically as the clinician tests.

Jump to 1 KHz by output change provides the possibility that every time a new test is selected the option of starting at 1 KHz by default can be selected with the use of this function.

Jump strategy allows the clinician to change the way in which the cursor moves by means of a “Butterfly” type of effect or no effect at all.

Butterfly centre frequency allows the clinician to set the intensity level of the 1 KHz default to either the threshold of the previous frequency tested or to a default of 30dB.

Warble frequency can be set to 5Hz or higher. Warble intensity can be modified, where default is 12.5%. Multi-frequency resolution: currently not used (for future use). Frequencies option allows the possibility of the clinician to define which frequencies they

wish to test. The AD629 allows frequencies between 125 Hz to 20 000Hz to be selected.


Function keys:

Banana: Configure the speech banana curve:

SaveAs provides the possibility of saving the changes that have been made in the current user protocol or to create a new – if you don’t have the change they will only be applied temporarily for the current test session (and the it will go back to the default saved settings):

Use the function keys “Delete”, “New” to delete or create new user settings (protocols). If you want to save the changes to an existing protocol (e.g. currently selected protocol) then just press “Save” (or press back to cancel).


10.2 Speech Settings and User Protocols

The dialog below shows settings for Speech testing:

Aided provides the possibility to test the patient based on the fact that they are fitted with hearing aids and therefore wish to obtain aided thresholds.

Binaural option is used if the patient is fitted with hearing aids binaurally. Masking type allows the clinician to select which masking input would be required for testing.

Either Speech Noise (SN) or White Noise (WN) can be chosen. Table mode/ Graph mode can be selected for speech presentation. Table mode settings/ Measurement type allows the selection between Speech Recognition

Threshold (SRT) HL/ SRT MCL or between Word Recognition WR lists 1, 2 or 3. Graph mode settings/ Measurement type provides the selection between UCL and MCL or

WR lists 1, 2 or 3. Show SRT on speech audiogram allows the Speech Recognition Threshold to be visible on

the display screen. Number of words used in WR lists can be altered, where the default setting is 25. Reset speech score on intensity change

Reset Score on HL to UCL change

Table selection for Wave File presentation allows the clinician to choose either which wave file material to use (this depends what is installed on the instrument)

Wave running mode for Wave File presentation can either be continuous, manual or time out mode.

Correct/ incorrect scoring can be selected and amount of time between each score can be adapted in seconds.

The duration between words can be changed with the use of this setting.


Function keys:

Ph Norms: phone norm curve settings FF Norms: free field norm curve settings SaveAs provides the possibility of permanently saving the changes that have been made in

the current user protocol or to create a new – see Tone settings section above (it works the same way.)

10.3 Common Instrument Settings To access this menu press the button labeled “Setup” (16) and use the ch2 dial (43) to scroll and the ch1 dial (41) to select the options. The table below shows the common settings menu:

Access the about box by pressing: “Shift + Setup”


Intensity Steps allows the clinician to choose between attenuator steps of 1, 2 or 5dB. Intensity when changing output allows the clinician to modify which intensity they would

like when changing the output of the test. Intensity when changing test is used to choose default intensity when changing over to

another test. Intensity decrease frequency steps can be used after a threshold is stored and the clinician

would like to move onto the next frequency. The starting intensity for that frequency defaults to between 5 to 35dB decrease of the previous intensity. E.g. if you selected this function to be 30dB and the saved threshold at 1KHz was 50dB, when you move onto the next frequency to test, the intensity will start at 20dB.

Multi, pulse length can be changed where the clinician can select the duration of each pulsed tone to be.

Single, pulse length can be changed where the clinician can select the duration of each pulsed tone to be.

Show maximum intensities can be selected to be shown at each frequency. Show masking cursor during testing can be selected. Ask for setting at startup: Deselect this if you always want to start up with the selected user

settings (protocol). Use insert masking for bone allows the use of automatically having the option of insert

masking for bone conduction available. This is used to prevent the occlusion effect at lower frequencies during bone conduction testing.

Use HF Phone: Use high frequency headset. Tone standard of either ANSI or IEC can be selected for pure tone testing. Speech standard between ANSI, IEC, Sweden or Norway can be selected. Filter mode selection provides the clinician with the choice of either FF equv, Non Linear or

Linear. License key for the AD629 to function can be entered in the space provided. The license key

can be used to activate different features on the basic version – e.g. HF. Please inquire your local Interacoustics distributor for more.

Display light of the display screen can be adjusted by the clinician. LED light: change the intensity of the button lights. Printer Type: select the printer type to use for direct printing via USB. Printing color mode: select the printing color mode used for direct printing. Output threshold in single graph with HF: Selecting this will force the printout and View

session to show threshold on a single audiogram together with high frequencies.

Function keys (7-14):

Install: For updating print logo image and wave files via a USB memory stick. See next section below.

Client button allows accessing the stored data (test sessions) of the saved clients on the device memory. Please see the chapter regarding Client and Session handling.

SaveAs provides the possibility of saving the changes that have been made in the current user protocol or to create a new – see Tone settings section above (it works the same way.).


10.4 Installing Print Logo, Symbols and Wave files (Pre-recorded speech)

10.4.1 Print Logo and Audiogram Symbols Print Logo: It is possible to setup a personalized logo on the print layout for the direct print. It is also possible to change the audiogram symbol set used .This is done through the Diagnostic Suite software – please refer to the Diagnostic Suite operational manual.

10.4.2 Wave files (Pre-recorded speech) Please contact your local distributor for more information about which speech material is available in your area. Pre-recorded speech material (wave files) is supplied by a USB memory stick. Plug in the USB memory stick in the back of one of the AD629 in one of the available USB connectors. Then go into the common instrument setting screen pressing the Setup (16) button, and pressing the function key called . Press ‘yes’ to start installing the wave files. Please refer to the Speech Testing section on how to run the actual pre-recorded speech test To uninstall the wave file press “shift + install” in the common settings screen. .



11 Other (Special) Tests

The various can be accessed from “Tests” (17):

The normal tone and speech tests have been describes in the previous sections, so in the following the rest of the test battery will be described.

11.1 Auto Threshold Hughson Westlake (HW) Hughson Westlake is an automatic pure tone test procedure. The threshold is defined as 2 out of 3 (or 3 out of 5) correct responses at a certain level in a 5dB increase and a 10dB decrease test procedure. Settings can be modified by pressing “Setup” (16) once Auto HW has been selected as a test.


1) Instruct the patient that he will hear tones with different frequencies and that he is supposed to push the patient response button whenever the tone is audible to him.

2) Select Auto Hughson Westlake in “Tests” (17), press 3) Select the desired test ear (29) (30).

4) Select if you wish to familiarize the patient before testing.

5) Select to test high frequencies. 6) Press play to Start the test (press Single to test single frequency).

When all the frequencies have been tested, the test automatically continues on to the other ear.

11.2 Békésy Békésy is a type of automatic audiometry. It is diagnostically important from the classification of the results into one of the five types (after Jerger, et al) when responses to continuous and pulsed tones are compared.

The Békésy test is a fixed frequency test. Pure tone or narrow band noise can be selected as a standard a continuous tone is selected for the Békésy test, if pulsing tones are preferred this can be changed by pressing “Setup” (16) and changing continuous to pulse.

Instructions to the patient: - That he will hear tones with different frequencies. - That he is to press the patient response button whenever a tone is audible to him and

release the response button as soon as the tone becomes inaudible.

1) Select the test by pressing “Tests”, and select “Auto – Békésy” 2) Select the desired ear by pressing (29) or (30).


3) If familiarization for the Békésy test is required then press . A fixed frequency Békésy function will start for the familiarization. When the patient has learned to respond correctly the test will start automatically.

4) If no familiarization is needed start and stop the test by pressing (press Single to test single frequency).

5) When the test is completed for the calculated ear the other ear will be tested and the test will then stop once completed.

6) Select to test high frequencies (requires optional HF license).

Automatic control of validity: If the test result exceeds certain limits regarding number of reversals dictated by the patient signal button as well as maximum deviation between peaks or valleys, the test will automatically be terminated. The thresholds for peaks and valleys as well as number of reversals can be changes in “Setup” (16).

11.3 ABLB Alternate Binaural Loudness Balancing is a test to detect perceived loudness differences between the ears. This is a possible test for recruitment when only one ear is expected to suffer from recruitment.

Instructions to the patient: - That he will hear tones alternating between his left and right ear. - That he is to press the response button corresponding to the ear in which he hears the

loudest tone. - That only loudness and not character of the sound should be considered when

responding.


1) Set the tone intensity to the poorer ear at a level of 5dB above threshold. Adjust the intensity of the tone for the other ear so that the loudness levels match.

2) Increase the level to the poorer ear by 20dB and repeat the test. 3) Repeat test at increasing intensity levels until the discomfort of output limit is reached.

11.4 Stenger Test The Stenger test is a test for malingering, based on the auditory phenomenon of the referral to the ear in which the sound appears loudest (the Stenger effect).

Select the Stenger test by pressing “Tests” (9) and “Stenger”. Instruct the patient to press the response button when he hears a tone (Do not mention which ear they will hear the tone in).

1) Present a tone to the normal ear 5 or 10dB above its threshold. Make sure that the tone presented is continuous by pressing “Rev” (33).

2) Present the continuous tone in channel 2 to the suspected ear at a level just below the level that the patient (untruthfully?) has reported to be his hearing threshold for this ear.

3) If the patient reports that the tone in the normal ear has disappeared by saying that now he hears nothing, he is essentially malingering.


11.5 Tone in Noise The tone in noise (Langenbeck) test is designed to locate the hearing impairment and is recommended for a falling hearing curve.

1) Select the desired test ear (29) / (30). 2) From the audiogram the lowest and highest hearing loss should have been determined. The

noise level to be used in the middle of the 2 values (between 50 and 60dB). Set the noise level.

3) The frequency to be tested is usually between 1000-4000Hz, set by means of “Up/ Down” (39) (40). Set the intensity level below the hearing threshold level and turn up for the intensity until the tone can be heard by the subject. Activate “Store” (37) to save the function and proceed on to the next frequency.


11.6 Master Hearing Aid Master Hearing Aid (MHA) is a hearing aid fitting procedure consisting of three hearing aid simulating high pass filters of -6dB, -12dB, -18dB per octave and a HFE (High Frequency Emphasis). The filters can be activated individually on both channels enabling the AD629 to serve as a 2 channel master hearing aid.

1) Enter the stimuli wanted by pressing “Wave File” and use the dial (41) to select the option required.

2) In order to simulate a situation with a hearing aid in one ear, select the desired test ear with (29) or (30). Adjust the intensity (41) suitable for the patient. Then engage the filter by

pressing 3) Use the dial (41) to select which filter is suitable for the patient. 4) For simulation in both hearing aids on both ears channel 2 can be activated. To engage the

filter in channel 2 select function

5) Use the dial (43) to change the intensity in channel 2. When testing both ears the channel 1

“HL dB” attenuator is controlling the active headphone “Right” (29) or “Left” (30). Channel 2 is controlling the contralateral headphone.


11.7 SISI (Short Increment Sensitivity Index) The Short Increment Sensitivity Index (SISI) is designed to test the ability to recognize one decibel increase in intensity during a series of bursts of pure tones presented 20dB above threshold.

1) Select the desired test ear (29) (30), frequency (39) (40) and intensity (41). Frequencies between 500 and 4000Hz and intensity 20dB above hearing threshold are recommended.

2) Press the functions to “play auto reset”.

3) To reset select the function.

11.8 QuickSIN Difficulty with hearing in background noise is a common complaint among hearing aid users. Therefore, the measurement of SNR loss (signal-to-noise ratio loss) is important because a person’s ability to understand speech in noise cannot be reliably predicted from the pure tone audiogram. The QuickSIN test was developed to provide a quick estimate of SNR loss. A list of six sentences with five key words per sentence is presented in four-talker babble noise. The sentences are presented at pre-recorded signal-to-noise ratios which decrease in 5-dB steps from 25 (very easy) to 0 (extremely difficult). The SNRs used are: 25, 20, 15, 10, 5 and 0, encompassing normal to severely impaired performance in noise. For more information please refer to Etymotic Research’s QuickSIN

TM Speech-

in-Noise web site: http://www.etymotic.com/pro/quicksin.aspx

http://www.etymotic.com/pro/quicksin.aspx


1) Select a list (e.g. “List 2 (Track 24)”.

2) Instruct the patient to repeat the sentences and try to ignore the noise that they will also hear through the headphones.

3) Press START to begin the test

4) The number of words in bold the patient repeats correctly should be scored using the score buttons.

5) When 6 sentences are scored a total score will be calculated.

Note that if you press Stop before the 6 sentences of the list have been played and scored, no total score will be calculated.

6) The total score can be compared to the “SNR loss definitions”.


12 Parts List

Item Optional part

Order item number

AD629 905901 Goose neck 1059 microphone 55001301 DD45 Audiometric headset 80043201 B71 bone conductor headset 80000701 APS3 Patient response switch 80201402 Cleaning cloth 81426001 Cable USB 2m 80407702 Diagnostic Suite * Power cable

Mainscable K - Denmark 1.8m Mainscable B North America 2.5m Mainscable GB - UK 2.5m Mainscable L - Italy 2.5m Mainscable J -Switzerland 2.5m Mainscable I - Australia 2.5m Mainscable I - Argentina 2.5m Mainscable Brazil 2.5m

80470801 80470901 80471001 80471101 80471201 80471301 80471401 80471901

Monitor Headset with boom X 80042301 TDH39AA with Amplivox Headset X 80000301 DD45 with Peltor Headset X 80045701 Bag 1057/1058 X 38503601 BAG/NYLON 15X16.75X10' CARRY X 38504401 Eartone 5A 10 Ohm OEM X 80000401 Eartone 3a 10Ohm X 80003201 HDA200 Headset 90° plug stereo X 80003301 CIR33 insert earphone kit X 80050301 Diagnostic Suite X 82100201 OtoAccess database X 82100601 High Frequency License X 810501151 *) Inquire local distributor.

Please note that the item list can be subject to changes throughout the product lifecycle.



13 Diagnostic suite with AD629

This section describes the data-transfer and hybrid mode (On-Line / PC-operated modes) supported by the new AD629.

13.1 Instrument setup

The setup is similar to that described in the previous chapter for audiometric data transfer.

Important: Please be sure to select the “AD629/AD229 (version 2)” (and not “AD229”, which refers to the old version).

PC controlled instrument: Unselect this if you want to run the AD629 as a standalone audiometer (i.e. not as a hybrid audiometer) but still being connected to the Diagnostic Suite. When pressing


Save Session on the instrument, the session will automatically be transferred to the Diagnostic Suite. See below section “Sync Mode”.

Upload Print Logo and Audiogram Symbols to AD629: A logo for direct print outs can be transferred to the AD629 using the “Up Print Logo” button. The symbol scheme used in the Diagnostic Suite can be transferred to the AD629 (when viewing the build in audiogram) by using the “Upload Custom Symbols” button. Please refer to the AD629 operational manual for info on how to change the symbol scheme on the AD629.

13.1.1 SYNC Mode

One click data transfer (Hybrid Mode disabled)

If the “PC controlled instrument” setting in the General Setup (see above) is deselected, the current audiogram will be transferred to the Diagnostic Suite as follows: When pressing Save Session on the instrument, the session will automatically be transferred to the Diagnostic Suite Start the suite with device connected

13.1.2 The Sync Tab If there is several sessions stored on the AD629 (under one or more patients) then the Sync tab must be used. The screen shot below shows the Diagnostic Suite with the SYNC tab open (underneath the AUD and IMP tabs in the upper right corner).

The SYNC tab provides the following possibilities:

Client upload is used for uploading clients from the database (Noah or OtoAccess) to the AD629. The internal AD629 memory can hold up to 500 clients and 50.000 sessions (audiogram data).

Session download is used to download sessions (audiogram data) stored in the AD629 memory into to Noah, OtoAccess or XML (when running Diagnostic suite without a database).


13.1.3 Client Upload

The following screen shot shows the client upload screen:

On the left side it’s possible to search for the client in the database to transfer to the database using different search criteria’s. Use the “Add” button to transfer (upload) the client from the database to the internal AD629 memory. The internal AD629 memory can hold up to 500 clients and 50.000 sessions (audiogram data)

On the right side the clients currently stored on the internal AD629 memory (hardware) is down. It’s possible to remove all clients for individual clients using the “Remove all” or “Remove” buttons.

13.1.4 Session download

The following screen shot shows the session download screen:

When pressing the icon the functionality of the “Session download” screen is described:



14 Technical Specifications

Safety Standards IEC 60601-1, ES60601-1, CAN/CSA-C22.2 No.60601-1 Class I, Applied parts type B, Continuous operation

EMC Standard IEC 60601-1-2:2001 + A1:2004

Audiometer Standards Tone Audiometer: IEC 60645 -1, ANSI S3.6 -2010, Type 2, HF IEC 60645-4. Speech Audiometer: IEC 60645-2/ANSI S3.6 type B or B-E. Auto threshold tests: ISO 8253-1

Calibration Calibration information and instructions is located in the AD629 Service manual

Air Conduction TDH39: ISO 389-1 1998, ANSI S3.6-2010 DD45: PTB/DTU report 2009 HDA200: ISO 389-8 2006, ANSI S3.6-2010 HDA280 PTB report 2004 E.A.R Tone 3A/5A: ISO 389-2 1994, ANSI S3.6-2010 CIR 33 ISO 389-2

Bone Conduction B71: ISO 389-3 1994, ANSI S3.6-2010 Placement: Mastoid

Free Field ISO 389-7 2005, ANSI S3.6-2010

High Frequency ISO 389-5 2004, ANSI S3.6-2010

Effective masking ISO 389-4 1994, ANSI S3.6-2010

Transducers TDH39 Headband Static Force 4.5N 0.5N DD45 Headband Static Force 4.5N 0.5N HDA200 Headband Static Force 4.5N 0.5N HDA280 Headband Static Force 5N 0.5N B71 Bone Headband Static Force 5.4N 0.5N E.A.R Tone 3A/5A: CIR 33

Patient Response switch One hand held push button.

Patient communication Talk Forward (TF) and Talk Back (TB).

Monitor Output through built-in speaker or through external earphone or speaker.

Special tests/test battery SISI. ABLB. Stenger. Stenger Speech. Langenbeck (tone in noise). Békésy Test. 2 channel speech, 2 channels Master Hearing Aid, Auto threshold, QuickSIN(tm) Auto threshold tests: Available time for patient to respond: Same as tone presentation Increment of hearing level: 5dB.

Auto threshold test (Békésy):

Mode of operation: Békésy Rate of level change: 2.5 dB/s ±20% Smallest increment of level: 0.5 dB

Stimuli

Tone 125-20000Hz separated in two ranges 125-8000Hz and 8000-20000Hz. Resolution 1/2-1/24 octave.

Warble Tone 1-10 Hz sine +/- 5% modulation

Wave file 44100Hz sampling, 16 bits, 2 channels


Masking Automatic selection of narrow band noise (or white noise) for tone presentation and speech noise for speech presentation.

Narrow band noise: IEC 60645-1:2001, 5/12 Octave filter with the same centre frequency resolution as pure Tone.

White noise: 80-20000Hz measured with constant bandwidth

Speech Noise. IEC 60645-2:1993 125-6000Hz falling 12dB/octave above 1KHz +/-5dB

Presentation Manual or Reverse. Single or multiple pulses.

Intensity Check the accompanying Appendix Available Intensity Steps is 1, 2 or 5dB Extended range function: If not activated, the Air Conduction output will be limited to 20 dB below maximum output.

Frequency range 125Hz to 8kHz (Optional High Frequency: 8 kHz to 20 kHz) 125Hz, 250Hz, 750Hz, 1500Hz and 8kHz may freely be deselected

Speech Frequency Response:

(Typical) Frequency Linear [dB] FFequv [dB]

[Hz] Ext.

sign1

Int. sign2 Ext.

sign1

Int. sign2

TDH39

(IEC 60318-3 Coupler)

125-250 +0/-2 +0/-2 +0/-8 +0/-8

250-4000 +2/-2 +2/-1 +2/-2 +2/-2

4000-6300 +1/-0 +1/-0 +1/-0 +1/-0

DD45


125-250 +0/-2 +1/-0 +0/-8 +0/-7

250-4000 +1/-1 +1/-1 +2/-2 +2/-3

4000-6300 +0/-2 +0/-2 +1/-1 +1/-1

E.A.R Tone 3A


250-4000 +2/-3 +4/-1 (Non linear)

B71 Bone Conductor


250-4000 +12/-12 +12/-12 (Non linear)

2% THD at 1000 Hz max output +9 dB (increasing at lower frequency)

Level range: -10 to 50 dB HL

1. Ext. sign: CD input 2. Int. sign: Wave files

External signal Speech replaying equipment connected to the CD input must have a signal-to-noise ratio of 45 dB or higher. The speech material used must include a calibration signal suitable for adjusting the input to 0 dBVU.

Free Field Power amplifier and loudspeakers With an input of 7 Vrms - Amplifier and loudspeakers must be able to create a Sound Pressure Level of 100 dB in a distance of 1 meter - and meet the following requirements:


Frequency Response 125-250 Hz +0/-10 dB 250-4000 Hz ±3 dB 4000-6300 Hz ±5 dB

Total Harmonic Distortion 80 dB SPL < 3% 100 dB SPL < 10%

Internal storage 250 patients and unlimited sessions/measurements/audiograms

Signal Indicator(VU) Time weighting: 300mS Dynamic range: 23dB Rectifier characteristics: RMS

Selectable inputs are provide with an attenuator by which the level can be adjusted to the indicator reference position(0dB)

Data Connections (sockets) 4 x USB A (compatible with USB 1.1 and later) 1 x USB B (compatible with USB 1.1 and later) 1 x LAN Ethernet

External devices (USB) Standard PC mouse and keyboard (for data entry) Supported printers: Standard PCL3 printers (HP, Epson, Canon)

Input Specifications TB 100uVrms at max. gain for 0dB reading Input impedance : 3.2KOhm

Mic.2 100uVrms at max. gain for 0dB reading Input impedance : 3.2KOhm

CD 7mVrms at max. gain for 0dB reading Input impedance : 47KOhm

TF (side panel) 100uVrms at max. gain for 0dB reading Input impedance : 3.2KOhm

TF (front panel) 100uVrms at max. gain for 0dB reading Input impedance : 3.2KOhm

Wave files Plays wave file from hard disk drive

Output Specifications FF1 & 2 7Vrms at 2KOhms load 60-20000Hz -3dB

Left & Right 7Vrms at 10 Ohms load 60-10000Hz -3dB

Ins. Left & Right 7Vrms at 10 Ohms load 60-20000Hz -3dB

Bone 7Vrms at 10 Ohms load 60-20000Hz -3dB

Ins. Mask 7Vrms at 10 Ohms load 60-20000Hz -3dB

Monitor(side panel) 2x 3Vrms at 32 Ohms / 1.5Vrms at 8 Ohms load 60-20000Hz -3dB

Display 5,7 inch high resolution color display 640x480 pixels

Compatible software Diagnostic Suite - Noah, OtoAccess and XML compatible

Dimensions (LxWxH) 36.5 x 29.5 x 6.5 cm / 14.4 x 11.6 x 2.6 inches

Weight 3.3kg/6.3lb

Power supply 100-240 V~, 50-60Hz max 0.5A


Operation environment Temperature: 15-35°C Re. Humidity: 30-90% Non condensing

Transport and storage Transport temperature: -20-50°C

Storage temperature: 0-50°C

Re. Humidity: 10-95% Non condensing


Appendix A: General maintenance

General maintenance

The following recommendations for care and maintenance are observed:

− It is required to let the instrument go through at least one annual overhaul, to ensure that the acoustical, electrical and mechanical properties are correct. This should be made by an authorized workshop in order to guaranty proper service and repair.

− Before the connection to the mains network, be sure that the local mains voltage corresponds

to the voltage labeled on the instrument. Always disconnect the power cord if the instrument is opened or by control / replacement of the mains fuses.

− Observe that no damage is present on the insulation of the mains cable or the connectors and

that it is not exposed to any kind of mechanical load, which could involve damage. − For maximum electrical safety, turn off the power from a mains powered instrument when it is

left unused. − Do not site the instrument next to a heat source of any kind, and allow sufficient space around

the instrument to ensure proper ventilation. − To ensure that the reliability of the instrument is kept, it is recommended that the operator at

short intervals, for instance once a day, perform a test on a person with known data. This person could be the operator him/herself.

− A plastic cover can be provided to protect the instrument against the accumulation of dust. The

cover should only be used when the instrument is left unused with the power turned off. − If the surface of the instrument or parts of it is contaminated, it can be cleaned using a soft cloth

moistened with a mild solution of water and dish washing cleaner or something similar. The use of organic solvents and aromatic oils must be avoided. Always disconnect the mains conductor during the cleaning process, and be careful that no fluid is entering the inside of the instrument or the accessories.

− After each examination of a patient, it should be ensured that there is no contamination on the

parts in connection with the patient. General precautions must be observed in order to avoid that disease from one patient is conducted to others. If ear cushions or ear tips are contaminated, it is strongly recommended to remove them from the transducer before they are cleaned. By frequent cleaning water should be used, but by severe contamination it may be necessary to use a disinfectant. The use of organic solvents and aromatic oils must be avoided.

− Great care should be exercised by the handling of earphones and other transducers, as

mechanical shock may cause change of calibration.


Appendix B:

Survey of Reference and max Hearing Level Tone

Audiometer

Maximum Hearing Level Settings provided at each test

Frequency

Appendix B:Survey of Reference and max Hearing Level Tone Audiometer.

ANSI TDH39

Coupler: ANSI S3.7-1995 (NBS-9A) / IEC 60318-3 1998 (6ccm)

Tone Audiometer Tone Narrow Band Noise ANSI S3.6-2010 ANSI S3.6-2010 Frequency RETSPL MaxHL RETSPL MaxHL

125 45.0 90 49.0 75 160¹ 37.5 95 41.5 85 200¹ 31.5 100 35.5 90 250 25.5 110 29.5 95

315¹ 20.0 115 24.0 100 400¹ 15.0 120 19.0 105 500 11.5 120 15.5 110

630¹ 8.5 120 13.5 110 750 8.0 120 13.0 110

800¹ 7.0 120 12.0 110 1000 7.0 120 13.0 110

1250¹ 6.5 120 12.5 110 1500 6.5 120 12.5 110

1600¹ 7.0 120 13.0 110 2000 9.0 120 15.0 110

2500¹ 9.5 120 15.5 110 3000 10.0 120 16.0 110

3150¹ 10.0 120 16.0 110 4000 9.5 120 14.5 110

5000¹ 13.0 120 18.0 110 6000 15.5 120 20.5 110

6300¹ 15.0 120 20.0 110 8000 13.0 110 18.0 100

WhiteNoise

0.0 120 TenNoise

25.0 110

¹ The RETSPL is copy from ISO389-1 1998

IEC TDH39

Coupler: IEC 60318-3 1998 (6ccm)

Tone Audiometer Tone Narrow Band Noise ISO 389-1 1998 ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

125 45.0 90 49.0 75 160 37.5 95 41.5 85 200 31.5 100 35.5 90 250 25.5 110 29.5 95 315 20.0 115 24.0 100 400 15.0 120 19.0 105 500 11.5 120 15.5 110 630 8.5 120 13.5 110 750 7.5 120 12.5 110 800 7.0 120 12.0 110

1000 7.0 120 13.0 110 1250 6.5 120 12.5 110 1500 6.5 120 12.5 110 1600 7.0 120 13.0 110 2000 9.0 120 15.0 110 2500 9.5 120 15.5 110 3000 10.0 120 16.0 110 3150 10.0 120 16.0 110 4000 9.5 120 14.5 110 5000 13.0 120 18.0 110 6000 15.5 120 20.5 110 6300 15.0 120 20.0 110 8000 13.0 110 18.0 100

WhiteNoise

0.0 120 TenNoise

25.0 110

ANSI HDA 280

Coupler ANSI S3.7-1995 (NBS-9A) / IEC 60318-3 1998 (6ccm)

Tone Audiometer Tone Narrow Band Noise PTB PTB Frequency RETSPL MaxHL RETSPL MaxHL

125 38.5 105 42.5 75 160¹ 33.5 110 37.5 80 200¹ 29.5 115 33.5 85 250 25.0 120 29.0 90

315¹ 21.0 120 25.0 95 400¹ 17.0 120 21.0 95 500 13.0 120 17.0 100

630¹ 10.5 120 15.5 100 750 9.0 120 14.0 105

800¹ 8.5 120 13.5 105 1000 7.5 120 13.5 105

1250¹ 8.5 120 14.5 105 1500 9.5 120 15.5 105

1600¹ 9.0 120 15.0 105 2000 8.0 120 14.0 105

2500¹ 7.0 120 13.0 105 3000 6.5 120 12.5 105

3150¹ 7.0 120 13.0 105 4000 9.5 120 14.5 105

5000¹ 12.0 120 17.0 105 6000 19.0 115 24.0 95

6300¹ 19.0 115 24.0 95 8000 18.0 105 23.0 90

WhiteNoise

0.0 120 ¹ This value is interpolated on Interacoustics

IEC HDA 280

Coupler IEC 60318-3 1998 (6ccm)

Tone Audiometer Tone Narrow Band Noise PTB ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

125 38.5 105 42.5 75 160¹ 33.5 110 37.5 80 200¹ 29.5 115 33.5 85 250 25.0 120 29.0 90

315¹ 21.0 120 25.0 95 400¹ 17.0 120 21.0 95 500 13.0 120 17.0 100

630¹ 10.5 120 15.5 100 750 9.0 120 14.0 105

800¹ 8.5 120 13.5 105 1000 7.5 120 13.5 105

1250¹ 8.5 120 14.5 105 1500 9.5 120 15.5 105

1600¹ 9.0 120 15.0 105 2000 8.0 120 14.0 105

2500¹ 7.0 120 13.0 105 3000 6.5 120 12.5 105

3150¹ 7.0 120 13.0 105 4000 9.5 120 14.5 105

5000¹ 12.0 120 17.0 105 6000 19.0 115 24.0 95

6300¹ 19.0 115 24.0 95 8000 18.0 105 23.0 90

WhiteNoise

0.0 120 ¹ This value is interpolated on Interacoustics

ANSI HDA 200

Coupler: IEC60318-2 with type 1 adaptor Tone Audiometer

Tone Narrow Band Noise ANSI S3.6-2010 ANSI S3.6-2010 Frequency RETSPL MaxHL RETSPL 1/3 MaxHL

125 30.5 100 34.5 75 160¹ 26.0 105 30.0 80 200¹ 22.0 105 26.0 80 250 18.0 110 22.0 85

315¹ 15.5 115 19.5 90 400¹ 13.5 115 17.5 95 500 11.0 115 15.0 95

630¹ 8.0 120 13.0 95 750 6.0 120 11.0 100

800¹ 6.0 120 11.0 100 1000 5.5 120 11.5 100

1250¹ 6.0 110 12.0 95 1500 5.5 115 11.5 100

1600¹ 5.5 115 11.5 100 2000 4.5 115 10.5 100

2500¹ 3.0 115 9.0 100 3000 2.5 115 8.5 100

3150¹ 4.0 115 10.0 100 4000 9.5 115 14.5 100

5000¹ 14.0 105 19.0 95 6000 17.0 105 22.0 90

6300¹ 17.5 105 22.5 90 8000 17.5 105 22.5 90 9000 19.0 100 24.0 85

10000 22.0 100 27.0 85 11200 23.0 95 28.0 80 12500 27.5 90 32.5 75 14000 35.0 80 40.0 70 16000 56.0 60 61.0 50

18000² 72.0 40 77.0 25 20000² 86.0 25 91.0 10

WhiteNoise 0.0 115 ¹ The RETSPL is copy from ISO389-8 2001. ² 18-20 kHz is estimated of Interacoustics.

IEC HDA 200

Coupler: IEC60318-1 with type 1 adaptor Tone Audiometer

Tone Narrow Band Noise ISO 389-8 2004 ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL 1/3 MaxHL

125 30.5 100 34.5 75 160 26.0 105 30.0 80 200 22.0 105 26.0 80 250 18.0 110 22.0 85 315 15.5 115 19.5 90 400 13.5 115 17.5 95 500 11.0 115 15.0 95 630 8.0 120 13.0 95 750 6.0 120 11.0 100 800 6.0 120 11.0 100

1000 5.5 120 11.5 100 1250 6.0 110 12.0 95 1500 5.5 115 11.5 100 1600 5.5 115 11.5 100 2000 4.5 115 10.5 100 2500 3.0 115 9.0 100 3000 2.5 115 8.5 100 3150 4.0 115 10.0 100 4000 9.5 115 14.5 100 5000 14.0 105 19.0 95 6000 17.0 105 22.0 95 6300 17.5 105 22.5 95 8000 17.5 105 22.5 90

ISO 389-5 2006 ISO 389-5 2006 + 5 dB 8000 17.5 105 22.5 90 9000 19.0 100 24.0 85

10000 22.0 100 27.0 85 11200 23.0 95 28.0 80 12500 27.5 90 32.5 75 14000 35.0 80 40.0 70 16000 56.0 60 61.0 50

18000² 72.0 40 77.0 25 20000² 86.0 25 91.0 10

WhiteNoise 0.0 115 ² 18-20 kHz is estimated of Interacoustics.

ANSI EAR 3A

Coupler: ANSI S3.7-1995 (HA-2 with 5mm rigid Tube) Tone Audiometer

Tone Narrow Band

Noise ANSI S3.6-2010 ANSI S3.6-2010 Frequency RETSPL MaxHL RETSPL MaxHL

125 26.0 90 30.0 90 160 22.0 95 26.0 95 200 18.0 100 22.0 100 250 14.0 105 18.0 105 315 12.0 105 16.0 105 400 9.0 110 13.0 105 500 5.5 110 9.5 110 630 4.0 115 9.0 110 750 2.0 115 7.0 110 800 1.5 115 6.5 110

1000 0.0 120 6.0 110 1250 2.0 120 8.0 110 1500 2.0 120 8.0 110 1600 2.0 120 8.0 110 2000 3.0 120 9.0 110 2500 5.0 120 11.0 110 3000 3.5 120 9.5 110 3150 4.0 120 10.0 110 4000 5.5 115 10.5 110 5000 5.0 105 10.0 105 6000 2.0 100 7.0 100 6300 2.0 100 7.0 100 8000 0.0 95 5.0 95

WhiteNoise

0.0 110

IEC EAR 3A

Coupler: IEC 60318-5 2006 2ccm Tone Audiometer

Tone Narrow Band Noise ISO 389-2 1994 ISO 389-4 1994

Frequency RETSP

L MaxHL RETSPL MaxHL 125 26.0 90 30.0 90 160 22.0 95 26.0 95 200 18.0 100 22.0 100 250 14.0 105 18.0 105 315 12.0 105 16.0 105 400 9.0 110 13.0 105 500 5.5 110 9.5 110 630 4.0 115 9.0 110 750 2.0 115 7.0 110 800 1.5 115 6.5 110

1000 0.0 120 6.0 110 1250 2.0 120 8.0 110 1500 2.0 120 8.0 110 1600 2.0 120 8.0 110 2000 3.0 120 9.0 110 2500 5.0 120 11.0 110 3000 3.5 120 9.5 110 3150 4.0 120 10.0 110 4000 5.5 115 10.5 110 5000 5.0 105 10.0 105 6000 2.0 100 7.0 100 6300 2.0 100 7.0 100 8000 0.0 95 5.0 95

WhiteNoise

0.0 110

ANSI Ear 5A

Coupler ANSI S3.7-1995 (HA-2 with 5mm rigid Tube) Tone Audiometer

Tone Narrow Band Noise ANSI S3.6-2010 ANSI S3.6-2010 Frequency RETSPL MaxHL RETSPL MaxHL

125 26.0 95 30.0 85 160 22.0 95 26.0 90 200 18.0 100 22.0 95 250 14.0 100 18.0 100 315 12.0 105 16.0 100 400 9.0 105 13.0 105 500 5.5 110 9.5 110 630 4.0 115 9.0 110 750 2.0 120 7.0 110 800 1.5 120 6.5 110

1000 0.0 120 6.0 110 1250 2.0 120 8.0 110 1500 2.0 120 8.0 110 1600 2.0 120 8.0 110 2000 3.0 120 9.0 110 2500 5.0 120 11.0 110 3000 3.5 120 9.5 110 3150 4.0 120 10.0 110 4000 5.5 120 10.5 110 5000 5.0 110 10.0 110 6000 2.0 105 7.0 105 6300 2.0 105 7.0 105 8000 0.0 100 5.0 100

WhiteNoise

0.0 110

IEC Ear 5A

Coupler IEC 60318-5 2006 2ccm Tone Audiometer

Tone Narrow Band Noise ISO 389-2 1994 ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

125 26.0 95 30.0 85 160 22.0 95 26.0 90 200 18.0 100 22.0 95 250 14.0 100 18.0 100 315 12.0 105 16.0 100 400 9.0 105 13.0 105 500 5.5 110 9.5 110 630 4.0 115 9.0 110 750 2.0 120 7.0 110 800 1.5 120 6.5 110

1000 0.0 120 6.0 110 1250 2.0 120 8.0 110 1500 2.0 120 8.0 110 1600 2.0 120 8.0 110 2000 3.0 120 9.0 110 2500 5.0 120 11.0 110 3000 3.5 120 9.5 110 3150 4.0 120 10.0 110 4000 5.5 120 10.5 110 5000 5.0 110 10.0 110 6000 2.0 105 7.0 105 6300 2.0 105 7.0 105 8000 0.0 100 5.0 100

WhiteNoise

0.0 110

ANSI CIR 22

Coupler ANSI S3.7-1995 (HA-2) Tone Audiometer

Tone Narrow Band Noise ANSI S3.6-2010 ANSI S3.6-2010 Frequency RETSPL MaxHL RETSPL MaxHL

125 26.0 90 30.0 90 160 22.0 95 26.0 95 200 18.0 100 22.0 100 250 14.0 105 18.0 105 315 12.0 105 16.0 105 400 9.0 110 13.0 105 500 5.5 110 9.5 110 630 4.0 115 9.0 110 750 2.0 115 7.0 110 800 1.5 115 6.5 110

1000 0.0 120 6.0 110 1250 2.0 120 8.0 110 1500 2.0 120 8.0 110 1600 2.0 120 8.0 110 2000 3.0 120 9.0 110 2500 5.0 120 11.0 110 3000 3.5 120 9.5 110 3150 4.0 120 10.0 110 4000 5.5 115 10.5 105 5000 5.0 105 10.0 95 6000 2.0 100 7.0 95 6300 2.0 100 7.0 95 8000 0.0 90 5.0 90

WhiteNoise

0.0 110

IEC CIR 22

Coupler IEC 60318-5 2006 2ccm Tone Audiometer


125 26.0 90 30.0 90 160 22.0 95 26.0 95 200 18.0 100 22.0 100 250 14.0 105 18.0 105 315 12.0 105 16.0 105 400 9.0 110 13.0 105 500 5.5 110 9.5 110 630 4.0 115 9.0 110 750 2.0 115 7.0 110 800 1.5 115 6.5 110

1000 0.0 120 6.0 110 1250 2.0 120 8.0 110 1500 2.0 120 8.0 110 1600 2.0 120 8.0 110 2000 3.0 120 9.0 110 2500 5.0 120 11.0 110 3000 3.5 120 9.5 110 3150 4.0 120 10.0 110 4000 5.5 115 10.5 105 5000 5.0 105 10.0 95 6000 2.0 100 7.0 95 6300 2.0 100 7.0 95 8000 0.0 90 5.0 90

WhiteNoise

0.0 110

ANSI B71

Coupler ANSI S3.13 Tone Audiometer

Tone Narrow Band Noise ANSI S3.6 -2010 ANSI S3.6 - 2010 Frequency RETSPL MaxHL RETSPL MaxHL

125 - - - - 160 - - - - 200 - - - - 250 67.0 45 71.0 35 315 64.0 50 68.0 40 400 61.0 65 65.0 55 500 58.0 65 62.0 55 630 52.5 70 57.5 60 750 48.5 70 53.5 60 800 47.0 70 52.0 60

1000 42.5 70 48.5 60 1250 39.0 70 45.0 60 1500 36.5 70 42.5 60 1600 35.5 70 41.5 60 2000 31.0 75 37.0 65 2500 29.5 80 35.5 70 3000 30.0 80 36.0 70 3150 31.0 80 37.0 70 4000 35.5 80 40.5 70 5000 40.0 60 45.0 50 6000 40.0 50 45.0 45 6300 40.0 50 45.0 40 8000 40.0 50 45.0 40

WhiteNoise

42.5 70

IEC B71

Coupler 60318-6 2007 Tone Audiometer


125 - - - - 160 - - - - 200 - - - - 250 67.0 45 71.0 35 315 64.0 50 68.0 40 400 61.0 65 65.0 55 500 58.0 65 62.0 55 630 52.5 70 57.5 60 750 48.5 70 53.5 60 800 47.0 70 52.0 60

1000 42.5 70 48.5 60 1250 39.0 70 45.0 60 1500 36.5 70 42.5 60 1600 35.5 70 41.5 60 2000 31.0 75 37.0 65 2500 29.5 80 35.5 70 3000 30.0 80 36.0 70 3150 31.0 80 37.0 70 4000 35.5 80 40.5 70 5000 40.0 60 45.0 50 6000 40.0 50 45.0 45 6300 40.0 50 45.0 40 8000 40.0 50 45.0 40

WhiteNoise

42.5 70

ANSI DD45


Tone Audiometer Tone Narrow Band Noise PTB – DTU 2010 ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

125 47.5 90 51.5 75 160¹ 40.5 95 44.5 85 200¹ 33.5 100 37.5 90 250 27.0 110 31.0 95

315¹ 22.5 115 26.5 100 400¹ 17.5 120 21.5 105 500 13.0 120 17.0 110

630¹ 9.0 120 14.0 110 750 6.5 120 11.5 110

800¹ 6.5 120 11.5 110 1000 6.0 120 12.0 110

1250¹ 7.0 120 13.0 110 1500 8.0 120 14.0 110

1600¹ 8.0 120 14.0 110 2000 8.0 120 14.0 110

2500¹ 8.0 120 14.0 110 3000 8.0 120 14.0 110

3150¹ 8.0 120 14.0 110 4000 9.0 120 14.0 110

5000² 10.0 120 15.0 110 6000 20.5 115 25.5 105

6300¹ 19.0 115 24.0 105 8000 12.0 110 17.0 100

WhiteNoise

0 120 ¹ This value is interpolated on Interacoustics ² Only PTB value

IEC DD45


Tone Audiometer Tone Narrow Band Noise PTB – DTU 2010 ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

125 47.5 90 51.5 75 160¹ 40.5 95 44.5 85 200¹ 33.5 100 37.5 90 250 27.0 110 31.0 95

315¹ 22.5 115 26.5 100 400¹ 17.5 120 21.5 105 500 13.0 120 17.0 110

630¹ 9.0 120 14.0 110 750 6.5 120 11.5 110

800¹ 6.5 120 11.5 110 1000 6.0 120 12.0 110

1250¹ 7.0 120 13.0 110 1500 8.0 120 14.0 110

1600¹ 8.0 120 14.0 110 2000 8.0 120 14.0 110

2500¹ 8.0 120 14.0 110 3000 8.0 120 14.0 110

3150¹ 8.0 120 14.0 110 4000 9.0 120 14.0 110

5000² 10.0 120 15.0 110 6000 20.5 115 25.5 105

6300¹ 19.0 115 24.0 105 8000 12.0 110 17.0 100

WhiteNoise

0 120 ¹ This value is interpolated on Interacoustics ² Only PTB value

ANSI KOSS R80

Coupler: IEC 60318-1 1998

HF Tone Audiometer Tone Narrow Band Noise IA - value ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

8000 18.5 100 23.5 90 9000 20.5 90 25.5 85

10000 24.5 95 29.5 80 11200 22.0 95 27.0 80 12500 27.0 80 32.0 75 14000 37.0 75 42.0 60 16000 52.5 60 57.5 45 18000 70.0 40 75.0 20 20000 84.0 15 89.0 10

White Noise 0 110

IEC KOSS R80

Coupler: IEC 60318-1 1998

HF Tone Audiometer Tone Narrow Band Noise IA - value ISO 389-4 1994 Frequency RETSPL MaxHL RETSPL MaxHL

8000 18.5 100 23.5 90 9000 20.5 90 25.5 85

10000 24.5 95 29.5 80 11200 22.0 95 27.0 80 12500 27.0 80 32.0 75 14000 37.0 75 42.0 60 16000 52.5 60 57.5 45 18000 70.0 40 75.0 20 20000 84.0 15 89.0 10

White Noise 0 110

ANSI

ANSI Free Field

ANSI S3.6-2010 Free Field max SPL

Free Field max HL is found by subtracting the selected RETSPL value Binaural Monaural Free Field Power Free Field Line Free Field Speaker 0° 45° 90° 0° 45° 90° Tone NB Tone NB Tone NB Frequency RETSPL RETSPL RETSPL RETSPL RETSPL RETSPL Max SPL Max SPL Max SPL Max SPL Max SPL Max SPL

125 22.0 21.5 21.0 24.0 23.5 23.0 95 85 100 95 80 70 160 18.0 17.0 16.5 20.0 19.0 18.5 95 85 100 95 80 70 200 14.5 13.5 13.0 16.5 15.5 15.0 95 85 105 100 85 75 250 11.5 10.5 9.5 13.5 12.5 11.5 95 85 105 100 85 75 315 8.5 7.0 6.0 10.5 9.0 8.0 95 85 105 100 85 75 400 6.0 3.5 2.5 8.0 5.5 4.5 95 85 105 100 90 80 500 4.5 1.5 0.0 6.5 3.5 2.0 95 85 105 100 90 80 630 3.0 -0.5 -2.0 5.0 1.5 0.0 95 85 105 100 90 80 750 2.5 -1.0 -2.5 4.5 1.0 -0.5 95 85 105 100 90 80 800 2.0 -1.5 -3.0 4.0 0.5 -1.0 95 85 105 100 90 80

1000 2.5 -1.5 -3.0 4.5 0.5 -1.0 95 85 105 100 90 80 1250 3.5 -0.5 -2.5 5.5 1.5 -0.5 95 85 105 100 90 80 1500 2.5 -1.0 -2.5 4.5 1.0 -0.5 95 85 105 100 90 80 1600 1.5 -2.0 -3.0 3.5 0.0 -1.0 95 85 105 100 90 80 2000 -1.5 -4.5 -3.5 0.5 -2.5 -1.5 95 85 105 100 90 80 2500 -4.0 -7.5 -6.0 -2.0 -5.5 -4.0 95 85 100 95 90 80 3000 -6.0 -11.0 -8.5 -4.0 -9.0 -6.5 95 85 105 95 90 80 3150 -6.0 -11.0 -8.0 -4.0 -9.0 -6.0 95 85 105 95 90 80 4000 -5.5 -9.5 -5.0 -3.5 -7.5 -3.0 95 85 105 100 90 80 5000 -1.5 -7.5 -5.5 0.5 -5.5 -3.5 95 85 110 100 90 80 6000 4.5 -3.0 -5.0 6.5 -1.0 -3.0 95 85 105 100 90 80 6300 6.0 -1.5 -4.0 8.0 0.5 -2.0 95 85 105 95 90 80 8000 12.5 7.0 4.0 14.5 9.0 6.0 90 75 95 90 90 80

WhiteNoise 0.0 0.0 0.0 0.0 0.0 0.0

90

100

85

IEC

IEC Free Field

ISO 389-7 2005 Free Field max SPL

Free Field max HL is found by subtracting the selected RETSPL value Free Field Power Free Field Power Free Field Power Free Field Power Free Field Power Tone Tone Tone Tone Tone Tone Tone NB Tone NB Tone NB Frequency RETSPL RETSPL RETSPL RETSPL RETSPL RETSPL Max SPL Max SPL Max SPL Max SPL Max SPL Max SPL

125 22.0 21.5 21.0 24.0 23.5 23.0 95 85 100 95 80 70 160 18.0 17.0 16.5 20.0 19.0 18.5 95 85 100 95 80 70 200 14.5 13.5 13.0 16.5 15.5 15.0 95 85 105 100 85 75 250 11.5 10.5 9.5 13.5 12.5 11.5 95 85 105 100 85 75 315 8.5 7.0 6.0 10.5 9.0 8.0 95 85 105 100 85 75 400 6.0 3.5 2.5 8.0 5.5 4.5 95 85 105 100 90 80 500 4.5 1.5 0.0 6.5 3.5 2.0 95 85 105 100 90 80 630 3.0 -0.5 -2.0 5.0 1.5 0.0 95 85 105 100 90 80 750 2.5 -1.0 -2.5 4.5 1.0 -0.5 95 85 105 100 90 80 800 2.0 -1.5 -3.0 4.0 0.5 -1.0 95 85 105 100 90 80

1000 2.5 -1.5 -3.0 4.5 0.5 -1.0 95 85 105 100 90 80 1250 3.5 -0.5 -2.5 5.5 1.5 -0.5 95 85 105 100 90 80 1500 2.5 -1.0 -2.5 4.5 1.0 -0.5 95 85 105 100 90 80 1600 1.5 -2.0 -3.0 3.5 0.0 -1.0 95 85 105 100 90 80 2000 -1.5 -4.5 -3.5 0.5 -2.5 -1.5 95 85 105 100 90 80 2500 -4.0 -7.5 -6.0 -2.0 -5.5 -4.0 95 85 100 95 90 80 3000 -6.0 -11.0 -8.5 -4.0 -9.0 -6.5 95 85 105 95 90 80 3150 -6.0 -11.0 -8.0 -4.0 -9.0 -6.0 95 85 105 95 90 80 4000 -5.5 -9.5 -5.0 -3.5 -7.5 -3.0 95 85 105 100 90 80 5000 -1.5 -7.5 -5.5 0.5 -5.5 -3.5 95 85 110 100 90 80 6000 4.5 -3.0 -5.0 6.5 -1.0 -3.0 95 85 105 100 90 80 6300 6.0 -1.5 -4.0 8.0 0.5 -2.0 95 85 105 95 90 80 8000 12.5 7.0 4.0 14.5 9.0 6.0 90 75 95 90 90 80

WhiteNoise 0.0 0.0 0.0 0.0 0.0 0.0

90

100

85 ¹The Binaural to Monaural correction on +2dB come from ANSI S3.6 -2004 The difference between 0° - 45° - 90° come from ISO 8253-2 1998.

Survey of Reference and max Hearing Level Speech Audiometer. ANSI Speech.

ANSI TDH39

Coupler: ANSI S3.7-1995 (NBS-9A) / IEC 60318-3 1998 (6ccm) Speech Audiometer

Speech Speech Noise ANSI S3.6-2010 ANSI S3.6-2010

RETSPL MaxHL RETSPL MaxHL

Linear Type A 19.5 110 19.5 100 Equ. FF Type A-E 15.5 105 15.5 100 Not Linear¹ 7.0 120 7.0 115 ILTASS 19.5 105

ANSI HDA 280


Speech Speech Noise

RETSPL MaxHL RETSPL MaxHL Linear Type A 20.0 100 20.0 95 Equ. FF Type A-E 21.5 95 21.5 90 Not Linear¹ 7.5 120 7.5 120 ILTASS 20.0 100

ANSI HDA 200

Coupler: IEC60318-2 with type 1 adaptor Speech Audiometer

Speech Speech Noise ANSI S3.6-2010 ANSI S3.6-2010 Frequency RETSPL MaxHL RETSPL MaxHL Linear Type A 19.0 90 19.0 85 Equ. FF Type A-E 18.5 85 18.5 80 Not Linear¹ 5.5 110 5.5 105 ILTASS 19.0 90

ANSI DD45




Linear Type A 18.5 110 18.5 100 Equ. FF Type A-E 18.5 100 18.5 100 Not Linear¹ 6.0 120 6.0 115 ILTASS

18.5 105

¹ This value come from pure tone 1kHz RETSPL value. (Not linear describe there is no equalizing of the signal flat electrical response)

ANSI Ear 3A

Coupler: ANSI S3.7-1995 (HA-2 with 5mm rigid Tube) Speech Audiometer



Speech 12.5 110 12.5 100 ILTASS 12.5 100

ANSI Ear 5A

Coupler: IEC 60318-5 2006 Speech Audiometer



Speech 12.5 110 12.5 100 ILTASS 12.5 100

ANSI CIR 22

Coupler: ANSI S3.7-1995 (HA-2) Speech Audiometer

Speech Speech Noise ANSI S3.6-2010 ANSI S3.6-2010 RETSPL MaxHL RETSPL MaxHL Speech 12.5 110 12.5 100 ILTASS 12.5 100

ANSI B71

Coupler: ANSI S3.13-1987 (R2002) Speech Audiometer



Speech 55.0 50 55.0 50 ILTASS 55.0 50

ANSI Free Field

ANSI S3.6-2010

Free Field max SPL Free Field max HL is found by subtracting the selected RETSPL value

Binaural Monaural Free Field Power Free Field Line Free Field Speaker 0° 45° 90° 0° 45° 90° 0° - 45° - 90° 0° - 45° - 90° 0° - 45° - 90°

RETSPL RETSPL RETSPL RETSPL RETSPL RETSPL Max SPL Max SPL Max SPL

Speech 15.0 11.0 9.5 17.0 13.0 11.5 90 100 80 Speech Noise 15.0 11.0 9.5 17.0 13.0 11.5 85 100 75 ILTASS 15.0 11.0 9.5 17.0 13.0 11.5 90 100 75

IEC Speech Calibration

IEC TDH39

Coupler IEC 60318-3 1998 (6ccm) Speech Audiometer

Speech Speech Noise IEC60645-2 1997 IEC60645-2 1997



IEC HDA 280





IEC HDA 200

Coupler IEC60318-1 with type 1 adaptor Speech Audiometer

Speech Speech Noise IEC60645-2 1997 IEC60645-2 1997 Frequency RETSPL MaxHL RETSPL MaxHL Linear Type A 20.0 90 20.0 85 Equ. FF Type A-E 3.5 100 3.5 95 Not Linear¹ 5.5 110 5.5 105 ILTASS 20.0 90

IEC DD45





¹ This value come from pure tone 1kHz RETSPL value. (Not linear describe there is no equalizing of the signal flat electrical response)

IEC Ear 3A

Coupler IEC 60318-5 2006 Speech Audiometer



Speech 20.0 100 20.0 90 ILTASS 20.0 90

IEC Ear 5A




Speech 20.0 100 20.0 90 ILTASS 20.0 90

IEC CIR 22


Speech Speech Noise IEC60645-2 1997 IEC60645-2 1997 RETSPL MaxHL RETSPL MaxHL Speech 20.0 90 20.0 90 ILTASS 20.0 90

IEC B71

Coupler 60318-6 2007 Speech Audiometer



Speech 55.0 50 55.0 50 ILTASS 55.0 50

IEC Free Field

ISO 389-7 2005

Free Field max SPL Free Field max HL is found by subtracting the selected RETSPL value

Binaural Monaural Free Field Power Free Field Line Free Field Speaker 0° 45° 90° 0° 45° 90° 0° - 45° - 90° 0° - 45° - 90° 0° - 45° - 90°



Sweden Speech Calibration

SWEDEN TDH39


Speech Speech Noise STAF 1996 STAF 1996


Linear Type A 22.0 105 27.0 90 Equ. FF Type A-E 0.5 120 0.5 115 Not Linear 22.0 105 27.0 90 ILTASS 27.0 90

SWEDEN HDA 280





SWEDEN HDA 200


Speech Speech Noise IEC60645-2 1997 IEC60645-2 1997 Frequency RETSPL MaxHL RETSPL MaxHL Linear Type A 20.0 90 20.0 85 Equ. FF Type A-E 3.5 100 3.5 95 Not Linear 5.5 110 5.5 105 ILTASS 20.0 90

SWEDEN DD45





SWEDEN EAR 3A




Speech 21.0 100 26.0 85 ILTASS 26.0 85

SWEDEN EAR 5A




Speech 21.0 100 26.0 85 ILTASS 26.0 85

SWEDEN CIR 22


Speech Speech Noise STAF 1996 STAF 1996 RETSPL MaxHL RETSPL MaxHL Speech 21.0 90 26.0 85 ILTASS 26.0 85

SWEDEN B71




Speech 55.0 50 55.0 50 ILTASS 55.0 50

Sweden Free Field


Free Field max HL is found by subtracting the selected RETSPL value Binaural Monaural Free Field Power Free Field Line Free Field Speaker 0° 45° 90° 0° 45° 90° 0° - 45° - 90° 0° - 45° - 90° 0° - 45° - 90°



Norway Speech Calibration

Norway TDH39


Speech Speech Noise Norway Norway



Norway HDA 280





Norway HDA 200


Speech Speech Noise Norway Norway Frequency RETSPL MaxHL RETSPL MaxHL Linear Type A 40.0 70 40.0 65 Equ. FF Type A-E 3.5 100 3.5 95 Not Linear 5.5 110 5.5 105 ILTASS 40.0 70

Norway DD45





Norway EAR 3A




Speech 40.0 80 40.0 70 ILTASS 40.0 70

Norway EAR 5A




Speech 40.0 80 40.0 70 ILTASS 40.0 70

Norway CIR 22


Speech Speech Noise Norway Norway RETSPL MaxHL RETSPL MaxHL Speech 40.0 70 40.0 70 ILTASS 40.0 70

Norway B71




Speech 75.0 30 75.0 30 ILTASS 75.0 30

Norway Free Field


Free Field max HL is found by subtracting the selected RETSPL value Binaural Monaural Free Field Power Free Field Line Free Field Speaker 0° 45° 90° 0° 45° 90° 0° - 45° - 90° 0° - 45° - 90° 0° - 45° - 90°



Equivalent Free Field Equivalent Free Field

Speech Audiometer TDH39 HDA200 HDA280 DD45

IEC60645-2 1997 ANSI S3.6-2010 ISO389-8 2004 PTB

PTB – DTU

IEC60318-3 1998 IEC60318-1 IEC60318-3 1998 2010 Frequency GF-GC GF-GC GF-GC GF-GC

125 -17,5 -5,0 -15,0 -21.5 160 -14,5 -4,5 -14,0 -17.5 200 -12,0 -4,5 -12,5 -14.5 250 -9,5 -4,5 -11,5 -12.0 315 -6,5 -5,0 -10,0 -9.5 400 -3,5 -5,5 -9,0 -7.0 500 -5,0 -2,5 -8,0 -7.0 630 0,0 -2,5 -8,5 -6.5 750

-5,0

800 -0,5 -3,0 -4,5 -4.0 1000 -0,5 -3,5 -6,5 -3.5 1250 -1,0 -2,0 -11,5 -3.5 1500

-12,5

1600 -4,0 -5,5 -12,5 -7.0 2000 -6,0 -5,0 -9,5 -7.0 2500 -7,0 -6,0 -7 -9.5 3000

-10,5

3150 -10,5 -7,0 -10,0 -12.0 4000 -10,5 -13,0 -14,5 -8.0 5000 -11,0 -14,5 -12,5 -8.5 6000

-14,5

6300 -10,5 -11,0 -15,5 -9.0 8000 +1,5 -8,5 -9,0 -1.5

General Properties for Earphones

Sound attenuation values for earphones

Frequency Attenuation TDH39/DD45 with MX41/

AR or PN 51 cushion EAR-Tone 3A EAR-Tone 5A

HDA200

[Hz] [dB] [dB] [dB] 125 3 33,5 14,5 160 4 200 5 250 5 34,5 16 315 5 400 6 500 7 34,5 22,5 630 9 750 - 800 11

1000 15 35,0 28,5 1250 18 1500 - 1600 21 2000 26 33,0 32 2500 28 3000 - 3150 31 4000 32 39,5 45,5 5000 29 6000 - 6300 26 8000 24 43,5 44

Appendix C:

Pin Assignment

Appendix C:Pin assignments Socket Connector Pin 1 Pin 2 Pin 3

Mains

Live Neutral Earth

IEC C6

Left & Right

Ground Signal -

Ins. Left & Right

Bone

Ins. Mask 6.3mm Mono

TB

Ground DC bias Signal Mic.2

TF (front panel)

Pat.Resp. 6.3mm Stereo -

CD

Ground CD2 CD1

TF (side panel) Ground DC bias Signal

Monitor(side panel) 3.5mm Stereo Ground Right Left

FF1 & FF2

Ground Signal -

RCA

USB A (4 x Host) USB B (Device)

1. +5 VDC

1. +5 VDC

2. Data - 2. Data -

3. Data + 3. Data +

4. Ground 4. Ground

LAN Ethernet

1. TX+ Transmit Data+

1. TX- Transmit Data-

2. RX+ Receive Data+

3. Not connected

4. Not connected

5. RX- Receive Data-

6. Not connected

RJ45 Socket RJ45 Cable Plug 7. Not connected

Appendix D:

Common AD629 Use Scenarios

The AD629 has the familiar feel of a standalone audiometer but offers features usually restricted to PC platforms such as EMR integration, multiple data/patient storage features, reporting tools and integration with other database programs (NOAH, OtoAccess™). In the following five common AD629 use scenarios is described. The following explains the meaning of figures used in the use case scenarios:

Communication interfaces:

Interface Symbol

Description

Clinician interacting with the AD629 (or other instruments) via buttons and dials. The instrument displays information to the clinician about the status of the measurement.

The patient interacting with the instrument (and clinician) via a patient response button, head phones, talk forward/talk back, normal dialog, etc.

A (USB) cable connection between AD629 and the PC (Diagnostic Suite) or a standard printer.

Database or 3rd party storage interface via the Diagnostic Suite PC software: Storing measurement data (test sessions) from the instrument to the database (Noah or OtoAccess™) and transferring patient info from the database to the instrument. An XML interface can be used for 3rd party system integration.

Clinician Patient Diagnostic Suite (PC)

()

Diagnostic Suite (Touch PC/Display)

)

()

Database or 3rd Party System (OtoAccess™,

Noah)

)

()

Standard Printer

# Use Scenario (Setup / Mode)

Description

1 Standalone Audiometry

AD629 can be used in standalone mode without a PC. Test sessions can be printed on a standard printer or stored in the internal memory and later transferred to the PC (see user scenario #2). AD629 can hold 500 patient and 50.000 sessions. Previously stored measurements (test sessions) can also be recalled on the build in display for review, printing or data transfer to the PC. This scenario can be either in a clinic or “on the road”.

2 Data Atorage (synchronization) and Print As shown in #1, data can be stored in the AD629 and measurements can be transferred (synchronized) to the Diagnostic suite for viewing, printing, database storage (Noah or OtoAccess™) or for 3rd party integration (e.g. via XML). Patient data can also be uploaded from Noah or OtoAccess™ to the AD629 memory.

3 Hybrid Mode = PC-controlled + Online-Mode + Data Synchronization NB: The Hybrid, PC-controlled and Online mode features are separate software-licenses that will not come as standard with AD629.

The AD629 can be used as a “hybrid audiometer” when connected to a PC via the Diagnostic Suite:

1. Online mode: Use the AD629 buttons and dials and see audiogram simultaneously on the PC – i.e. it’s “online”.

2. PC-controlled: Control the AD629 from the PC like a PC-based black-box audiometer (like Equinox and Callisto™), i.e. it’s “pc-controlled”.

When running it as a hybrid, the build on display is disabled. Data is stored directly on the PC (database) and not in the internal memory.

4

Sound Booth Installation with Touch Screen

When using AD629 in a sound booth installation, it’s possible to use a touch screen monotor / PC inside the booth to control the audiometer. This can also be used together with e.g. a Titan middle ear analyzer (see #5: popular combinations). In that way there is less need for an audiological assistant inside the booth.

1 2

1

2

Sound booth

Window

5 AD629 Popular Combinatioms – Audiometry, Impedance & Real Ear Measurement (Fitting)

AD629 can be used in combination with other audiometers, middle ear analyzers and fitting devices:

Titan or AT235: diagnostic or clinical tympanamotry

Callisto: Real ear measurement and visible speech mapping

Benefits:

Merge data from several instruments into one report

Create customzed reports and printouts

One common and intuitive workflow and user interface across all instruments

One common data source

6

Networked Solution AD629 can be integrated into a clinic or hospital network via Diagnostic Suite and other open interfaces. Interface with electronic medical records (EMR) or office management systems (OMS), e.g.:

Exchange patient information (demographics)

Data import / export Share results via PDFs

AD629

Callisto

(AUD+REM) AT235

(IMP)

Titan

(IMP) Combined

Report

http://www.imagine-net-tech.com/images/network.jpg

Documents

Operation Manual - Анкаanka.bg/bg/interacoustics/audiometers/AD629_OM.pdf · 3.1 Back Panel External Connections ... this apparatus is connected to one or ... This audiometer