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vocabulary
v-3.01 audio
Question | Answer |
---|---|
sound wave | an audible vibration that travels through air or water |
frequency | number of waves to pass a point in one second |
amplitude | distance from rest to crest or rest to trough |
wavelength | distance from crest to crest |
crest | point that exhibits maximum amount of upward displacement from the rest position |
trough | point that exhibits maximum amount of downward displacement from the rest position |
pitch | the quality of the sound determined by the rate vibration |
sampling | process used to convert analog sound waves into digital data to be used by computers |
sample rate | the number of samples taken per second often measured in kilohertz (kHz) |
bit rate | the number of computer bits process per unit of time |
sample size | the number of bits used to save one sample |
channel | single audio stream consisting of a sequence of samples |
mono | one channel audio is a single channel where sound comes from s single direction |
stereo | two channels creates the impression of sound being heard from various directions as in human hearing |
audio file size | determined by the sample rate sample size and the number of channels |
MP3 file size | MPEG-1 audio layer 3 |
WAV file format | waveform file |
OGG file format | ogg vorbis |
AIFF file format | audio interchange file format |