DocumentCode
926875
Title
Hybrid frequency-domain coding of speech signals
Author
Foo, S.W. ; Turner, L.F.
Author_Institution
Imperial College of Science & Technology, Department of Electrical Engineering, London, UK
Volume
130
Issue
5
fYear
1983
fDate
8/1/1983 12:00:00 AM
Firstpage
459
Lastpage
467
Abstract
A new method of speech coding called hybrid frequency-domain coding is introduced and its application to speech transmission at bit rates of 7.2 and 9.6 kbit/s is studied. The hybrid frequency-domain coding system is based on a combination of sub-band coding and transform coding techniques. Subjective tests have shown that the quality of speech produced by the hybrid frequency-domain technique at 7.2 kbit/s is comparable with 19 kbit/s continuously variable slope delta modulation (CVSD), and that at 9.6 kbit/s, it is comparable with 23 kbit/s CVSD.
Keywords
encoding; speech analysis and processing; vocoders; voice communication; coder; continuously variable slope delta modulation; hybrid frequency-domain coding; listening tests; signal quantisation; speech coding; speech signals; speech transmission; sub-band coding; transform coding;
fLanguage
English
Journal_Title
Communications, Radar and Signal Processing, IEE Proceedings F
Publisher
iet
ISSN
0143-7070
Type
jour
DOI
10.1049/ip-f-1.1983.0074
Filename
4645914
Link To Document