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21 CHAPTER 1 : DVD-AUDIO
What is What is DVD-Audio?DVD-Audio?
The new audio standard developed for thenext generation, based on
DVD-Video ROM technology.It offers 4 major characteristics:
CONSENSUS:Developed by the DVD forum, together with the ISC(International Steering Committee), this format issupported by the music industry as the next-generation standard in digital audio.
ULTRA-HIGH QUALITY 2-CHANNEL STEREO:Offers unprecedented audio quality, with a maximum192 kHz sampling frequency and 24 bit quantization.
MULTI-CHANNEL WITH LINEAR PCM QUALITY:Since it supports up to 6 separate audio channels, itcan reproduce movie soundtracks and other multi-channel content with full impact.
VISUAL & INTERACTIVE CONTENTS:Enables future-oriented interactive capabilities,including still image playback, digital effects, visualmenus, and much more.
CHAPTER 1 : DVD-AUDIO
Disc SizeDataCapacity
ChannelsCodingMode
SamplingFrequencies
QuantizationDynamicRangePlaybackTimeOptionalContents
DVD Audio12cm8.5 GB (Single Sided) 17 GB (Double Sided) 1-6 chLinear PCM orPacked PCM(MLP)48/96/192 kHz44.1/88.2/176.4kHz16/20/24 bits144 dB
74 minutes ormoreText, Still Picture,Video, VisualMenu
Audio CD12cm640 MB
2 chLinear PCM
44.1 kHz
16 bits98 dB
74 minutes
Text
The new audio standard that offersspecifications and performance that are
far superior to Audio CD:
Note:Although 8cm discs are supported by these formats, theyhave been omitted from the chart since 8cm discs are notmarketed in your region.
4CHAPTER 1 : DVD-AUDIO3 CHAPTER 1 : DVD-AUDIO
DVD-Audio:DVD-Audio:UnprUnprecedented Qualityecedented Quality
High-bit (24 bit) QuantizationSupporting 24 bit quantization, DVD-Audio offers apotential dynamicrange of 144 dB(theoretically),allowing productsthat deliver a 110 dB or broaderdynamic range.
Up to 192 kHz Sampling FrequencyWith a maximum sampling frequency of 192 kHz,DVD-Audio performance dramatically surpassesAudio CD quality.48*/96*/192 kHz, 44.1*/88.2*/176.4 kHz aresupported for stereo content. Support of 44.1 kHzand derivative frequencies maintains compatibilitywith the Audio CD family.
*Supports multi-channel content also.
FlexibilityTo offer content producers the flexibility they need,DVD-Audio permits various parameters such assampling frequency, quantization and numberof channels to be changed per each track.
WG-4 (47 firms)
JVC is chairingcompany.
DVD-Audio:DVD-Audio:Based on ConsensusBased on ConsensusJVC has been a leader in DVD-Audio from thevery start. Established in 1995, the DVD Forum’sWG-4 (Working Group 4), chaired by JVC,developed the DVD-Audio standard inconsultation with the ISC which represents the 5major software producers that account for 90%of the world’s music market.
ISC
RIAA (USA) RIAJ
(Japan)IFPI
(Europe)
5 MajorProducers
WarnerUniversal
SonyEMIBMG
Note on Copy Protection:DVD-Audio ver. 1.2 incorporates CPPM (ContentProtection for Prerecorded Media) to meet thecopyright requirements of the music industry.
Developed with the consensus of the musicindustry, DVD-Audio is set to be the nextstandard in digital audio.
DVD Forum
(approx. 200 firms)WG-1WG-2WG-3
DC
24 bit
20 bit
16 bit
44.1kHz 96kHz 192kHz
Qu
an
tiza
tio
n
Sampling Frequency
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6CHAPTER 1 : DVD-AUDIO5 CHAPTER 1 : DVD-AUDIO
DVD-Audio:DVD-Audio:Multi-Channel SupportMulti-Channel Support
Flexibility for Content Producers
Multi-Channel and StereoBoth multi-channel and stereo versions of the sameaudio can be stored in the same track; the userselects which version to listen to.If only multi-channel content exists on a disc whilethe user wants to listen in stereo, DVD-Audiosupports multi-to-stereo downmixing to allow stereolistening. Based on an algorithm stored on the disc,multi-channel sound can be converted to stereo inthe manner intended by the content producer.
Linear PCM and Packed PCMIn addition to Linear PCM which offers the highestquality for stereo content, DVD-Audio also supportsPacked PCM (a.k.a. MLP™ or Meridian LosslessPacking) to accommodate the higher data amount ofmulti-channel content. For example, Packed PCMwill allow 86 minutes of 96kHz/24bit/6ch content perdisc, which is impossible with Linear PCM.
Linear PCM 6-Channel CapabilityIn addition to stereo, the DVD-Audio format alsosupports multi-channel Linear PCM audio of up to6 channels. Available speaker settings areL/R/C/Ls/Rs/LFE, thereby offering compatibilitywith 5.1 channel surround sound systems.
Content producers can choose to divide thechannels into groups (e.g. front group and reargroup) and give them different parameters(sampling frequency and quantization) to allowmore efficient use of disc capacity.
LC
R
LFE
RsLs
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SamplingFrequency
48kHzor
44.1k
96kHzor
88.2k
192kHzor
176.4k
Quantization
16 bit
20 bit
24 bit
16 bit
20 bit
24 bit
16 bit
20 bit
24 bit
1ch 2ch 3ch
Linear PCMPacked PCM
4ch 5ch 6ch
DVD-Audio Sampling, Quantization and Channels
8CHAPTER 1 : DVD-AUDIO7 CHAPTER 1 : DVD-AUDIO
DVD-Audio:DVD-Audio:VVisual & Interactive Contentsisual & Interactive Contents
SlideshowImages are “anchored” tothe audio contentand are displayedsynchronously toaccompany thesound (such aslyrics).
Browsable PicturesMade possible since digital still data is read into the DVD-Audio player’s cache memory, the user can browsethrough the images at will.
Video Track PlaybackContent producers will be able to place movingvideo data that is compatible with the DVD-Videoformat on the DVD-Audio disc, allowing audiocontent to be enhanced with video clips. LPCM,Dolby Digital and DTS are supported for the audiotracks of these video clips.
Visual MenuAllows interactive navigation through a DVD-Audio disc, via on-screen menu.
Text (with Multi-Lingualsupport)n Album Text offers Album
(disc)/Group/Track/Index title information, artistname, and other information.
n Track Text displays information specific to thetrack being played in real-time.
Bonus GroupContent producers can include “bonus groups” onthe disc that can be played only if a key number iscorrectly input. Unlike bonus tracks on CDs, thesebonus groups require user interactivity to access,and can be tied-in with various promos such ashaving the user visit a Web site for the access key.
Also, if supportedby the player, digitaltransition effectssuch as Fade, Wipeand Dissolve canbe applied to thepictures.
Still Picture PlaybackWhile playing audio tracks, it is possible to viewMPEG2 or MPEG1 digital still pictures that arepart of the disc’s content.
**** ***** ******* ***** ********** ***** ******* ***** ********** ***** ********** ***** ******* ***** ***
Tr 2:Chorus
**** ***** ******* ***** ********** ***** ******* ***** ********** ***** ********** ***** ******* ***** ***
Tr 2:1st verse
**** ***** ******* ***** ********** ***** ******* ***** ********** ***** ********** ***** ******* ***** ***
Tr 1:Chorus
**** ***** ******* ***** ********** ***** ******* ***** ********** ***** ********** ***** ******* ***** ***
Tr 1:1st verse
Audio Presentation
Tr1
Tr2
1.**** **2.**** 3.*** ****4.***** *PICTURES BIO
Track List
Jacket Pictures
Biography
Audio Presentation Tr1
Tr2
Tr3
Tr4
Tr5
Tr6
Tr75.**** **
6.**** **7.**** **
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10CHAPTER 2 : XV-D723GD9 CHAPTER 1 : DVD-AUDIO
DVD-Audio:DVD-Audio:Data HierarData HierarchychyThe data on a DVD-Audio disc (called an“Album”),is subdivided into 3 levels. Getting a grasp ofthe terminology and the data hierarchy willmake it easier to understand how DVD-Audiowill operate.
The capacity of a DVD-Audio disc currently is 4.7Gbytes, and some content providers may opt touse a two-sided disc to double the content volume.With high quality, and the ability to store high-capacity data very efficiently, the DVD-Audio formatis an excellent medium for the latest audio andmultimedia productions.
XVXV-D723GD -D723GD The Ultimate in HomeThe Ultimate in HomeTheater and AudioTheater and AudioPerPerforformancemance
The XV-D723GD takes home theaterentertainment to the next stage. JVC hasequipped the latest technology to boost videoquality to new heights, while the newlydeveloped DVD-Audio format has beenincorporated so people will be able to enjoyall the benefits of the new digital audiostandard.
Group 7 Group 9 (9 max.)
up to 99
Group 8
Group 1 Group 3Group 2
Group 4 Group 6Group 5
Track 1
Vis
ual
Men
u
Album
up to 99
Track 2 Track 3 Track 4
Index 1 Index 2 Index 3 Index 4 Index 5
New Level ofAudio
Performance withDVD-Audio
Joy To Use withAdvanced
ConvenienceFeatures
Excellent VideoQuality with
Progressive ScanOutput
New Level ofAudio
Performance withDVD-Audio
Joy To Use withAdvanced
ConvenienceFeatures
Excellent VideoQuality with
Progressive ScanOutput
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1211 CHAPTER 2 : XV-D723GD CHAPTER 2 : XV-D723GD
High Performance Construction
Separate Audio/Video Construction
Airtight Disc Tray
Convenience Features
High-Resolution GUI
Multi-Brand Remote with Shuttle Dial
Audio Performance Features
New 192kHz/24-bit P.E.M. D.D.Converter
Dolby Digital/DTS Decoders
Video Performance Features
Progressive Scan Output
High-bit (10-bit)/Super High Sampling (54 MHz) Video DAC
Component Video, S-Video and Composite Video Outputs
High Quality Zoom
New VFP (Video Fine Processor)
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14CHAPTER 2 : XV-D723GD13 CHAPTER 2 : XV-D723GD
Sem
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Sh
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Lay
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Sem
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Lay
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Sep
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up
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Fee
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Tim
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G
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Bal
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Bu
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Cir
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Mas
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epar
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P.E
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96kH
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/6ch
192k
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24b
it/2
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Audio PerAudio Per forformancemanceFeaturFeatureses
To support the excellent quality made possiblewith the DVD-Audio format, the XV-D723GD isequipped with a full array of sound-performance maximizing technologies.
New 192kHz/24-bit P.E.M. D.D.ConverterDeveloped to match the maximum 192kHz/24-bitaudio resolution of DVD-Audio.JVC’s new 1-bit P.E.M. D.D. Converter LSI offers…n 8-times oversampling of DV-Audio input signal to
assure high accuracy.n VANS (JVC Advanced Noise Shaper), an exclusive
4th-order noise shaper eliminates noise by shifting itout of the audible audio range and into theinaudible ultra-high frequency range.
n Dual layers of shielding and independent powersupplies to prevent Pulse Generator interference ofMaster Clock.
n Delivers more than 110 dB dynamic range and0.0012% total harmonic distortion using 20-bit orgreater quantization.
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What is P.E.M. D.D. Converter?It stands for "Pulse Edge Modulation Differentiallinearity-errorless D/A Converter", and is anadvanced variation of the conventional 1-bit D/Aconverter that theoretically eliminates zero-crossingdistortion. Incorporating dual P.E.M. DACs as wellas new VANS circuitry, our latest version offersample performance for the XV-D723GD.
16CHAPTER 2 : XV-D723GD15 CHAPTER 2 : XV-D723GD
Dolby Digital/DTS DecodersEquipped with a full set of decoders to accommodatethe latest in home theater sound.n Compatible with MLP (Meridian Lossless Packing)
for high-quality multi-channel sound.n Ready to be incorporated into an existing home theater
system with 5.1-channel amp and speakers.n Easy to upgrade with optical and coaxial digital
outputs for connection to external Dolby Digital/DTSMultichannel decoder.
High Frequency Spectrum of 192kHz/24-bitP.E.M. D.D. Converter
High Frequency Spectrum of Conventional D/AConverter
Comparison of Noise SuppressionCharacteristics
80
40
3.2 5
A
B
C
10 20 50 100
–40
0
[db]
[kHz]
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A : Conventional 3rd-order noise shaperB : Previous VANSC : New VANS (Human hearing is in the range of 20 Hz – 20 kHz.
New VANS eliminates most noise from this audible range.)
Noise Shaping Characteristics of VANS
High frequencies that result in noise
Noise level of fs = 44.1 kHz, 16 bit
NO
ISE
LE
VE
L
FREQUENCY
18CHAPTER 2 : XV-D723GD17 CHAPTER 2 : XV-D723GD
VVideo Perideo PerforformancemanceFeaturFeatureses
DVD-Video offers a solid, high-quality base forvideo images. The XV-D723GD is equipped withvarious technologies that maximize thispotential quality.
JVC Progressive Scan Output● Conventional : 2-3 Pull-Down Interlaced ConversionMost movies on DVD are recorded at 24 frames persecond (24fps) in MPEG format. A conventionalinterlaced DVD player converts 24 frames per secondinto 30 interlaced frames (or 60 fields) for display on aTV. Frame-for-frame conversion, however, would resultin a wrong playback speed, so a technique called “2-3pull-down” – which alternates two video fields (oneframe is made of two video fields) with three videofields for each pair of DVD frames – is used to producethe 30 necessary frames. But this causes two fields tobe blended in the same frame, resulting in blurryimages in fast-moving scenes. And since the picturesare interlaced, scanning lines are noticeable on the TVscreen, and vertical resolution is low.
● JVC Advantage : Direct Progressive Scan OutputThe common progressive converter used on someDVD players first converts progressive 24fpsrecorded on DVD into interlaced 30fps (2-3 pull-down conversion). Then the I/P(Interlaced/Progressive) converter LSI re-convertsthe interlaced 30fps into progressive 60fps. Thistwo-step conversion can lead to the deterioration ofthe signal-to-noise ratio and resolution.JVC’s Direct Progressive Scan Output features the“Direct Progressive Decoder” – a newly-developed high-speed MPEG decoder that canproduce the video output at twice conventionalspeed. This allows the direct conversion ofDVD’s 24fps into progressive 60fps for displayon your TV, thereby avoiding the qualitydisadvantages of I/P conversion. (See comparisondiagram on next page.)
FOR DEMO:
1 Play a movie on DVD.2 Pause the picture at a scene where there are
large, bright, same-colored fields.3 Switch back and forth between Interlace to
Progressive; point out how scanning lines arevisible in Interlace, and disappear inProgressive.
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AAA
A
B
B
C
C
C CB
20CHAPTER 2 : XV-D723GD19 CHAPTER 2 : XV-D723GD
MPEG Bitstream
Y Cb Cr Sync
Sharpness, GammaControl, Hue
Direct ProgressiveDecoder
(2–3 pull-down)
10-bit/54 MHz DAC
Digital Video Processor
2x Over SamplingDigital Filter
4:2:2 Y Cr Cb/8-bit/13.5 MHz525P/24MPGE Stream
4:4:4 Y Cr Cb10-bit/27 MHz525P/60Video data
4:4:4 Y Cr Cb10-bit/27 MHz525P/60Video data
4:4:4 Y Cr Cb10-bit/54 MHz525P/60High SamplingVideo data
Y Cb Cr Sync
Y CbCr Sync
Y CbCr
Video Output
MPEG Bitstream
MPEG Decoder
2/3 Pull-Down
I-P ConversionLSI
10-bit/27 MHz DAC
Video Output
525P/24
525I/30
525P/60
Conventional Conventional XV-D721GD XV-D721GD High-bit (10-bit)/Super HighSampling (54 MHz) Video DACNewly developed to deliver a much higher levelof performance.The use of 10-bit/54MHz high-bit/super high-sampling VideoDAC (digital-to-analog converter)provides 2X oversampling ofthe 27MHz progressive signaland 10-bit re-quantization for a wide-rangeresponse and high-quality images free of foldoverdistortion.
4:4:4 Upsampling of DVD SignalEnsures clearer and purer color reproduction.To maximize color reproduction accuracy, DVD’soriginal 4:2:2 (Y Cr Cb) component signal isupsampled to 4:4:4. Since this signal is alsooversampled to 54 MHz for output, greatlyimproved color reproduction is achieved.
Even during interlaced output, the combination of54 MHz DAC and 4:4:4 upsampling deliversbeautiful images with increased depth in the overallpicture.
Unique characteristics:● Does not use an expensive I-P conversion LSI.● Incorporates newly developed high-speed MPEG
decoder and 10-bit/54 MHz DAC in a single chip.● Controlled by RISC (Reduced Instruction Set
Computer) CPU with 100 MIPS (Million Instructions perSecond) which affords quick response and highprecision.
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22CHAPTER 2 : XV-D723GD21 CHAPTER 2 : XV-D723GD
COLOR:To adjust the saturation of the colors, creating aricher looking or lighter looking picture. (±16 steps)
BRIGHTNESS:To shift the gray slope up or down, thus raising orlowering the overall brightness of the picture. (±16steps)
CONTRAST:Changes the angle of the gray slope, therebyraising or lowering the contrast of the image. (±16steps)
Y DELAY:Delays the Y (luminance) signal in relation to the C (chroma) signal. (±2 steps)
New VFP (Video Fine Processor)Gives the viewer the power to customize thepicture to match his personal taste orcompensate for a particular TV monitor’s color.
GAMMA:Adjusts the gamma curve ofthe gray slope whichrepresents the gradual, lineartransition from black to white.(±4 steps)
TINT:Changes the color temperaturewithout changing thesaturation, allowing fineadjustment of colors that lookinacurate. (±16 steps)
SHARPNESS:Uses a flicker filter to deliverclearer results when viewingon large-screen TVs. (4 steps)
NORMAL ¥ CINEMA ¥ USER 1 ¥ USER 2§
In addition to the "NORMAL" and "CINEMA"factory-preset modes, there are two user-settablemodes in which the user can adjust up to 7parameters to precisely attain the effect he wants.
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24CHAPTER 2 : XV-D723GD23 CHAPTER 2 : XV-D723GD
Component Video, S-Video andComposite Video OutputsComponent video outputs for maximum signalpurity, S-Video and Video outs for wide rangeof connectivity.
High Quality ZoomBy virtue of a new, versatile graphic chip, the XV-D723GD is able to offer excellent picturequality 13-step zoom.
n Very fine quality picture at x2 and x4 zoom,with digital smoothing function.
n Selectable zoom magnifications ranging fromx1/8 to x1024.
n Inset screen shows relative location of thezoomed area and the zoom ratio.
n Component (Y/Pb/Pr) outputs DVD’scomponent video signals in componentform to maintain maximum purity. Byseparating video signals into Pr (R-Y), Pb(C-Y) and Y (luminance), interferencebetween luminance and chroma signals iseliminated, and separate color differencesignal transfer reduces spurious signalgeneration.
n ComponsiteVideo output forconnection tovirtually any TVor video unit.
n S-Video outputallows connectionto TVs and otherunits equippedwith S-Video input.
FOR DEMO:
1 Play back movie on DVD.2 Zoom in on a face; mention how good the
quality is while zooming in to x2 and x4, andpoint out how the image doesn’t look too grainy.
3 Zoom in to x1024 briefly to show the maximumcapacity, and zoom back out to normal.
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26CHAPTER 2 : XV-D723GD25 CHAPTER 2 : XV-D723GD
High PerHigh PerforformancemanceConstructionConstruction
The superior quality of the XV-D723GDencompasses every detail, including the basicconstruction of the unit, to ensure highperformance to satisfy both audiophiles andvideophiles.
Separate Audio/Video ConstructionElaborate construction protects delicate audiosignals from noise and other interference.
n Audio circuit block, video circuit block, servo/DSPcircuit block and power supply block are allindependent to prevent mutual interference.
n Audio circuit block is divided with separate sub-blocks and signal paths for each channel.
Airtight Disc TrayUses rubber seal to seal-off the Mechanismfrom the outside.
n Serves to shut out external vibrations frominterfering with playback.
n Helps shut out dust and other environmentalparticles.
n Internal motor noise does not leak out, offering amore comfortable viewing experience for theuser.
Mechanism Servo/DSP circuit (underside of unit)
Audio circuit block
Video circuit block
Power supply
Gold-Plated ConnectorsHigh quality connectors as you'd expect on thefinest audio equipment.
n Increases conductivity to minimize signal lossand maximize signal purity.
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28CHAPTER 2 : XV-D723GD
n Parental Lock lets you restrict playback orrequire a password.
n VFP Setting On-Screen Menus let you easilycustomize the picture based on a wide range ofparameters.
n 3D-PHONIC Setting On-Screen Menu tochoose from among Action*/Drama/ Theater/OFFpresets to best suit the viewing material.
* Not available with some discs (encoded with Dolby Digital)
Multi-Brand Remote withShuttle DialShuttle flexibility and multi-brand versatility fortotal controllability.
n Preset with control codes foroperating various brands of TVsand CATV/satellite tuners.
n Shuttle dial offers flexible frame-by-frame playback, slowmotion, and high-speed search inboth directions.
Smooth Visual SearchSearch picture is much smoother than withprevious DVD decks.
n Less jerkiness and interruptions.
n Smooth motion makes it easier to find the sceneyou want.
27 CHAPTER 2 : XV-D723GD
ConvenienceConvenienceFeaturFeatureses
JVC’s XV-D723GD provides a superior human-machine interface, both on-screen and in-hand,to make DVD operation more enjoyable andworry-free.
High-Resolution GUIBy use of a high-speed graphicchip, the GUI (Graphical UserInterface) offers images andletters that look much finer andsmoother than were previously available.
n Preference screens allow selection oflanguage and digital output settings.7 on-screen languages selectable:English, French, Spanish, German,Chinese (Trad.), Chinese (Simplified),Japanese.
n Speaker Setting screen for selectionof 2-channel, 5.1-channel, or Expert fordetailed control over parametersettings.
n DVD Control Panel to access specialfeatures (angle, audio track, subtitles,playback modes) while displaying 1/4-size real-time playback screen.
● Currently selected language
● Bit Rate incidator (yellow = audio, green = video) XV
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MEMOMEMO MEMOMEMO
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