Title :
Low rate audio compression using parametric spectral modeling techniques
Author_Institution :
COMSAT Lab., Clarksburg, MD, USA
fDate :
31 Oct-2 Nov 1994
Abstract :
As compression rates for audio signals approach the 1 bit/sample/Hz threshold, the applicability of parametric spectral modeling techniques is of increasing interest. This paper reports continued work in this area, in developing further the technique of adaptive predictive coding with transform domain quantization (APC-TQ). In particular, improvements in the efficiency of representation of the signal spectrum representation of the modeling of harmonic structure are addressed
Keywords :
adaptive codes; audio coding; harmonic analysis; linear predictive coding; quantisation (signal); signal representation; spectral analysis; transform coding; adaptive predictive coding; audio signals; harmonic structure; low rate audio compression; parametric spectral modeling techniques; signal spectrum representation; transform domain quantization; Audio compression; Bit rate; Discrete transforms; Humans; Power harmonic filters; Power system modeling; Predictive coding; Predictive models; Quantization; Signal processing;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471652
