from
The Free On-line Dictionary of Computing (8 July 2008)
Spectral Band Replication
SBR
<audio, compression> (SBR) Guessing the nontransmitted higher
frequency range of a compressed audio file by some helper bits
(transmiited with the stream) and the transmitted base band.
SBR allows a restoration (not reconstruction) of the upper
frequency range without lots of bits. It was developed by
Coding Technology (http://codingtechnology.com/), and is
useful for medium and high quality coding at low and medium
data rates. It is used by {Digital Radio Mondiale} and {MP3
Pro}.
(2004-12-10)