DocumentCode
764322
Title
Subjective Evaluation of a 4.8 kbit/s Residual-Excited Linear Prediction Coder
Author
Nakatsui, Mamoru ; Stevenson, Dale C. ; Mermelstein, Paul
Author_Institution
Radio Research Laboratory, Ministry of Posts and Telecommunications, Koganei-shi, Tokyo, Japan
Volume
29
Issue
9
fYear
1981
fDate
9/1/1981 12:00:00 AM
Firstpage
1389
Lastpage
1393
Abstract
A 4.8 kbit/s residual-excited linear prediction coder (RELP) with two subband coded basebands was systematically evaluated in terms of intelligibility and overall quality. Intelligibility degradation due to RELP-coding is found to be 6 percent without transmission errors, an additional 6.4 percent with 1 percent bit errors, and 9.8 percent in 10 dB SNR acoustic background noise. Quality of the RELP coded speech is midway between those of 3 and 4 bit log-PCM and is significantly higher than that of the pitch-excited linear prediction coder.
Keywords
Prediction methods; Background noise; Baseband; Communications Society; Data communication; Decoding; Degradation; Frequency; Linear predictive coding; Low pass filters; Speech analysis;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1981.1095136
Filename
1095136
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