non-uniform quantising logarithmic compression
The kind of compression often applied to a sound waveform. Logarithmic
compression is a good match for the human ear's sensitivity but cannot handle
zero amplitude (for which the logarithm is negative infinity). There are two
standard compression functions which give a smooth transition between the
logarithmic function and a linear segment passing through the origin: mu-law
(North America) and A-law (ITU-T).
(1995-02-21)
Nearby terms:
Non Return to Zero Inverted « nontrivial «
Non-Uniform Memory Access « non-uniform
quantising logarithmic compression » Non-Uniform
Rational B Spline » non-volatile » non-volatile
memory
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