View source for Spectral Band Replication

'''Spectral Band Replication''' ('''SBR''') is a parametrical coding method developed by [[Coding Technologies]] to enhance audio quality at low bitrates.

Guessing the non-transmitted higher [[frequency]] range of a compressed audio file by using some helper bits (transmitted with the stream) in addition to the transmitted base band. SBR allows a restoration (not reconstruction) of the upper [[frequency]] range without lots of bits. It is used by [[MP3Pro]], [[aacPlus]] (later standardized as [[AAC|HE-AAC]]) and Digital Radio Mondiale.

==References== 
* [https://en.wikipedia.org/wiki/Spectral_band_replication SBR on wikipedia]
* [http://www.codingtechnologies.com/products/sbr.htm SBR at CodingTechnologies]
* [http://www.audiocoding.com/modules/wiki/?page=SBR SBR at AudioCoding]


[[Category:Algorithms]]