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Vocabulary
V-3.01 Audio-Img
| Term | Definition |
|---|---|
| Sound wave | an audible vibration that travels through air or water |
| Frequancy | Number of waves to pass a point in one second |
| Amplitude | Distance from rest to crest or rest to trough |
| Crest | Point position that exhibits maximum amount of upward displacement from the rest |
| Trough | Point that exhibits maximum amount of downward displacement from the rest position |
| Pitch | The quality of the sound determined by the rate of 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 (Depth) | 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 a 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 number of channels used |
| MP3 File Format | MPEG-q Audio Layer 3 |
| WAV File Format | Waveform file |
| OGG File Format | Ogg Vorbis |
| AIFF File Format | Audio Interchange File Format |
| Wavelength | Distance from crest to crest |
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