DocumentCode
284697
Title
Sum-difference stereo transform coding
Author
Johnston, J.D. ; Ferreira, A.J.
Author_Institution
AT&T Bell Labs., Murray Hill, NJ, USA
Volume
2
fYear
1992
fDate
23-26 Mar 1992
Firstpage
569
Abstract
An audio filterbank coder using both monophonic and stereophonic redundancy and irrelevancy is described. This coder, with a transform filterbank, uses both signal-processing gains and perceptual gains to provide transparent or nearly transparent coding of CD and R-DAT audio signals at 192 kb/s/stereo pair, and high-quality coding at 128 kb/s/stereo pair. Methods of using the interchannel redundancies and psychoacoustic characteristics are described
Keywords
audio signals; digital audio tape; encoding; filters; transforms; video and audio discs; CD audio signals; R-DAT audio signals; audio filterbank coder; high-quality coding; interchannel redundancies; irrelevancy; perceptual gains; psychoacoustic characteristics; signal-processing gains; stereophonic redundancy; sum-difference stereo transform coding; transparent coding; Bit rate; Entropy coding; Filter bank; Frequency; Loudspeakers; Low-frequency noise; Psychoacoustic models; Psychology; Testing; Transform coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location
San Francisco, CA
ISSN
1520-6149
Print_ISBN
0-7803-0532-9
Type
conf
DOI
10.1109/ICASSP.1992.225993
Filename
225993
Link To Document