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 , and is

useful for medium and high quality coding at low and medium

data rates. It is used by Digital Radio Mondiale and MP3Pro.