Difference between revisions of "Spectral Band Replication"
From Hydrogenaudio Knowledgebase
m |
|||
Line 8: | Line 8: | ||
*[http://www.codingtechnologies.com/products/sbr.htm SBR at CodingTechnologies] | *[http://www.codingtechnologies.com/products/sbr.htm SBR at CodingTechnologies] | ||
*[http://www.audiocoding.com/modules/wiki/?page=SBR SBR at AudioCoding] | *[http://www.audiocoding.com/modules/wiki/?page=SBR SBR at AudioCoding] | ||
+ | |||
+ | [[Category:Algorithms]] |
Revision as of 22:53, 7 September 2006
Spectral Band Replication (SBR) is a parametrical coding method developed by CodingTechnologies to enhance audio quality at low bitrates.
Guessing the nontransmitted higher frequency range of a compressed audio file by using some helper bits (transmited 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, HE AAC and Digital Radio Mondiale.