meaning of non uniform quantising logarithmic compression
1. non-uniform quantising logarithmic compression The kind of compression often applied to a sound waveform. Logarithmic compression is a good match for the human ears 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.
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non-uniform quantising logarithmic compression |
