Title :
Nonlinear quantisation of spectral shape in sub-band coding
Author :
Varma, Vasudeva ; Lin, David W. ; Dixon, J.L.
Author_Institution :
Bell Commun. Res. Inc., Red Bank, NJ, USA
fDate :
4/13/1989 12:00:00 AM
Abstract :
The authors propose nonlinear quantisation of the spectral shape in sub-band coding. This computationally simple method is shown to yield substantial improvement in speech quality. The performance improvement obtained is computed for 8-band and 16-band coding schemes operating at 16 kbit/s.
Keywords :
decoding; encoding; signal processing; speech analysis and processing; 16 kbit/s; 16-band; 8-band; decoding; encoding; nonlinear quantisation; performance improvement; signal processing; spectral shape; speech processing; speech quality; sub-band coding; subband coding;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890376
