Subband encoding
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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, which is licensed under the GFDL.