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Subband encoding is an audio compression technique where the sound is split into frequency bands and then parts of the signal which the ear cannot detect are removed, e.g. a quiet sound masked by a loud one. The remaining signal is encoded using variable bit-rates with more bits per sample being used in the mid frequency range.
Subband encoding is used, for example, in MPEG-1.
This article was originally based on material from the Free On-line Dictionary of Computing and is used under the GFDL.
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