DocumentCode
339135
Title
A method of optimizing codebook based on codeword use frequency
Author
Gang, Zhang ; Xueying, Zhang ; Yanxi, Qiao
Author_Institution
Taiyuan Univ. of Technol., China
fYear
1998
fDate
1998
Firstpage
552
Abstract
The paper presents the use of codeword use frequency (CUF) to indicate codebook performance in a CELP coder and a method of optimizing the codebook on basis of it. Having tested the ITU-T G.728 algorithm using the method we find that it is possible to further decrease the code rate. The primary experiment obtains some fairly good results
Keywords
linear predictive coding; optimisation; speech coding; table lookup; CELP coder; ITU-T G.728 algorithm; code rate decrease; codebook performance; codeword use frequency; optimization; speech coding; Bit rate; Encoding; Frequency; Optimization methods; Pulse shaping methods; Redundancy; Shape; Speech synthesis; Testing; Vector quantization;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location
Beijing
Print_ISBN
0-7803-4325-5
Type
conf
DOI
10.1109/ICOSP.1998.770271
Filename
770271
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