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Following are some general definitions of terms that are used in this
document.
- Sample
-
A sample is one binary number, representing the amplitude at a fixed point
in time. A sample is often stored as an 8 bit signed integer, a 16 bit
signed integer, a 32 bit floating point number etc. AHI only
supports integers.
- Sample frame
-
In mono environments, a sample frame is the same as a sample. In stereo
environments, a sample frame is a tuple of two samples. The first member
is for the left channel, the second for the right.
- Sound
-
Many sample frames stored in sequence as an array can be called a sound. A
sound is, however, not limited to being formed by samples, it can also be
parameters to an analog synth or a MIDI instrument, or be white noise.
AHI only supports sounds formed by samples.
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