Sub-band coding: Difference between revisions

Revision as of 20:35, 24 February 2007

Revision as of 01:04, 25 February 2007

Line 1:

{{Cleanup|February 2007}}

{{cleanup}}

'''Sub-band coding''' is any form of [[transform coding]] that breaks a signal into a number of different [[frequency band]]s and encodes each one independently. It can be used with [[audio compression]] so that 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.