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V-3.01 Audio-Img
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 |
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 computer |
Sampling | 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 1 Audio Layer 3 |
WAV File Format | Waveform file |
OGG File Format | Ogg Vorbis |
AIFF File Format | Audio Interchange File Format |
Trough | Point that exhibits maximum around of downward displacement from the rest point |