'''Subband encoding''' is an [[audio compression]] technique where the sound is split into [[frequency bandbands]]s 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]].
Subband coding is also used for compressing speech, video and image signals. It involves a linear part which usually is a filter bank, and a nonlinear part which is a uniform scalar quantization of each of the subbands.
