Applications Sound is used in: interactive media products,

websites, DVD interfaces, interactive presenta-tions, computer games and mobile phone con-tent.

If all of these interactive systems didn’t contain

any music then people would get bored quicker and easier. Mobile Phones have so many little details that most people don’t even realise of take any notice for them for example Key clicks on a phone.

On computer games they have

music that plays while on the menu which entertains the player.

Moozic

Let’s find stuff out about the use of soundage

ed.

I S S U E

M O N T H Y E A R

01

Sound Recording

Sound is measured by decibels (dB). Amplitude is shown by the height of the waves. Frequency for a sound wave is measured in hertz (Hz). The pitch is to do with the understanding of the frequency which the brain works out. Vibrations are used in sound and vibrations travel through the wavelength. Fast vibrations equal a high frequency and a high pitch. When vibrations are slow, the frequency is and sound is low. Mono and stereo are two different recording and listening speakers. Mono only carries one signal in its wave and there is only one source that appears. Stereo has at least two different sources and can be heard just like natu-ral hearing. Distortion is mostly unwanted because distortion changes the form of the wavelength and its characteristics change so you cannot hear the sound or it becomes distorted, unrecognizable and deformed.

An analog record-

ing is one where a

property or charac-

teristic of a physi-

cal recording medi-

um is made to vary

in a manner analo-

gous to the varia-

tions in air pressure

of the original

sound. A digital re-

cording is pro-

duced by convert-

ing the physical

properties of the

original sound into

a sequence of num-

bers, which can

then be stored and

read back for re-

production. Two

prominent differ-

ences in functional-

ity are the band-

width and the sig-

nal-to-noise ratio

(S/N); however,

both digital and an-

alog systems have

inherent strengths

and weaknesses.

AIF - Audio Interchange File Format

WAV – WAVE Audio File (ad: WAV file

doesn't lose any of its quality when it is stored,

whereas MP3 files are "lossy" files.) (dis:

WAV files don't have the same sorts of com-

pression rates that MP3 files have.)

MP3 – MP3 Audio File (Ad: The ad-

vantage of MP3 is its high fidelity)

(dis: disadvantage of MP3 is that it

takes up quite a lot of storage space)

MP1 - MPEG-1 Layer 1 Audio File

MID – MIDI File (ad: It's a standard. It's ex-

tensible) (dis: Maximum cable length15 me-

ters, No synchronous events)