Pseudorandomly dithered quantisation of speech samples in p.c.m. transmission systems
作者:
R.G.Wood,
L.F.Turner,
期刊:
Proceedings of the Institution of Electrical Engineers
(IET Available online 1972)
卷期:
Volume 119,
issue 5
页码: 512-518
年代: 1972
DOI:10.1049/piee.1972.0110
出版商: IEE
数据来源: IET
摘要:
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.
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