US05109417Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
AssigneeDolby Laboratories Licensing Corporation
Assign./FiledApril 28, 1992/ Dec. 29, 1989
InventorsFielder; Louis D., Davidson; Grant A.
SummaryUse of block floating representation and adaptive bit allocation for encoding high quality audio. Gives nicely detailed, general coverage of transform coding.
AbstractQuantizing noise is lessened in a speech signal system by using adaptive bit allocation for subband channels, wherein subband information of digital words is represented in block-floating-point form, and normalized mantiss as may allow dropping a sign bit.