click below
click below
Normal Size Small Size show me how
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 |