Multimedia Sound

Front 1

is a series of compression waves that moves through air or other materials.

Back 1

Sound

Front 2

These sound waves are created by the _________ of some object, like a radio loudspeaker.

Back 2

vibration

Front 3

The waves are detected when they _________________.

Back 3

cause a detector to vibrate

Front 4

Your _______________from sound waves to allow you to sense them.

Back 4

eardrum vibrates

Front 5

has the standard characteristics of any waveform.

Back 5

Sound

Front 6

Sound is perceived through the ____________

Back 6

sense of hearing

Front 7

Sounds are used in several ways, notably for _______________.

Back 7

communication through speech and music

Front 8

They can also be used to __________________________ such as spatial characteristics and presence of other animals or objects

Back 8

acquire information about properties of the surrounding environment

Front 9

They can also be used to acquire information about properties of the surrounding environment such as:

Back 9

spatial characteristics and presence of other animals or objects

Front 10

Humans can generally hear sounds with frequencies between

Back 10

20 Hz and 20 kHz

Front 11

Sound above the hearing range is known as ___________, and that below the hearing range as __________.

Back 11

-ultrasound

- infrasound

Front 12

Creating sound(how)

Back 12

Whenever an object in air vibrates, it causes compression waves in the air. These waves move away from the object as sound.

Front 13

When a sound wave strikes an object, it can cause the object to ____________.

Back 13

vibrate

Front 14

The main way you detect or sense sounds is through your ______.

Back 14

ears

Front 15

can be copied as many times as you want, with no loss in quality, and they can be burned to an audio CD or shared via the Internet.

Back 15

Digital files

Front 16

The main device used in digital recording is an

Back 16

Analog-to-Digital Converter (ADC)

Front 17

(ADC)

Back 17

Analog-to-Digital Converter

Front 18

(DAC)

Back 18

Digital-to-Analog Converter

Front 19

for playing audio. �

Back 19

DAC

Front 20

Multimedia Sound Formats

Back 20

Midi forma

RealAudio Format

AU format

AIFF Format

SND format

WAVE Format

MP3 Format (MPEG)

Front 21

MIDI

Back 21

(Musical Instrument Digital Interface)

Front 22

is a format for sending music information between electronic music devices like synthesizers and PC sound cards

Back 22

MIDI

Front 23

MIDI format was developed in what year?

Back 23

1982

Front 24

is very flexible and can be used for everything from very simple to real professional music making.

Back 24

MIDI format

Front 25

The downside of MIDI is that

Back 25

It cannot store songs, only tunes

Front 26

The upside of the MIDI format is that

Back 26

since it contains only instructions (notes), MIDI files can be extremely small.

Front 27

Sounds stored in the MIDI format have the extension

Back 27

.mid or .midi.

Front 28

is supported by many different software systems over a large range of platforms.

Back 28

MIDI format

Front 29

are supported by all the most popular Internet browsers.

Back 29

MIDI files

Front 30

The RealAudio format was developed for the Internet by __________�

Back 30

Real Media

Front 31

The format allows streaming of audio (on-line music, Internet radio) with low bandwidths. Because of the low bandwidth priority, quality is often reduced.

Back 31

Real audio

Front 32

Sounds stored in the RealAudio format have the extension

Back 32

.rm or .ram.

Front 33

is supported by many different software systems over a large range of platforms.

Back 33

AU format

Front 34

Sounds stored in the AU format have the extension ......

Back 34

.au

Front 35

AIFF (Audio Interchange File Format) was developed by ......

Back 35

Apple

Front 36

AIFF

Back 36

(Audio Interchange File Format)

Front 37

are not cross-platform and the format is not supported by all web browsers.

Back 37

AIFF files

SND file

Front 38

Sounds stored in the AIFF format have the extension ________

Back 38

.aif or .aiff.

Front 39

SND (Sound) was developed by ...

Back 39

Apple

Front 40

Sounds stored in the SND format have the extension .

Back 40

.snd

Front 41

WAVE (waveform) format is developed by .

Back 41

IBM and Microsoft

Front 42

It is supported by all computers running Windows, and by all the most popular web browsers

Back 42

WAVE format

Front 43

Sounds stored in the WAVE format have the extension .....

Back 43

.wav

Front 44

are the sound part of the MPEG video format.

Back 44

MP3 files

Front 45

is one of the most popular sound formats for music recording.

Back 45

MP3

Front 46

Sounds stored in the MP3 format have the extension

Back 46

.mp3, or .mpga

Front 47

What Format To Use?

Back 47

The WAVE format is one of the most popular sound format on the Internet, and it is supported by all popular browsers.

Front 48

portable recording device. There are three standard technologies in use:

Back 48

cassette recorder

Digital Audio Tape recorder (DAT)

and minidisc recorder

Front 49

are well-known to most people, as they have been the standard means of audio recording for consumers for many years.

Back 49

Cassette recorders

Front 50

The cassettes store up to

_______ minutes of stereo audio

Back 50

120

Front 51

have been the professional digital audio standard since they were introduced, but they have never penetrated the consumer market.

Back 51

DAT recorders

Front 52

They record at greater than CD quality (48KHz 16-bit) but require a certain amount of maintenance and care due to the complexity of their mechanism and the fact that the recording medium is tape.

Back 52

DAT recorders

Front 53

utilize a small cartridge which permits digital recording and playback of stereo audio up to 74 minutes in duration.

Back 53

Minidisc recorders