DocumentCode
1436326
Title
Pseudorandomly dithered quantisation of speech samples in p.c.m. transmission systems
Author
Wood, R.G. ; Turner, L.F.
Volume
119
Issue
5
fYear
1972
fDate
5/1/1972 12:00:00 AM
Firstpage
512
Lastpage
518
Abstract
The paper reports on an investigation of the application of variable-level quantisation in p.c.m.-type speech-transmission systems. Variable-level (dithered) quantisation systems are compared with normal fixed-level quantisation systems. The systems are compared using intelligibility tests and subjective-appreciation tests, and a statistical analysis of the results is given. The analysis indicates that, in general, normal quantisation is superior to dithered quantisation.
Keywords
pulse-code modulation; speech intelligibility; telephone systems; 3040 Hz; assembly language computer programs; coding technique; dithered quantisation; intelligibility tests; pseudorandom number generators; pulse code modulation; real time simulation; speech; subjective appreciation tests; telephone quality speech transmission;
fLanguage
English
Journal_Title
Electrical Engineers, Proceedings of the Institution of
Publisher
iet
ISSN
0020-3270
Type
jour
DOI
10.1049/piee.1972.0110
Filename
5252109
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