DocumentCode
1811309
Title
Adaptive postfilter in 16 kbps LD-CELP speech coder
Author
Bingxi, Wang ; Yinghua, He
Author_Institution
Zengzhou, Henan, China
Volume
1
fYear
1996
fDate
14-18 Oct 1996
Firstpage
678
Abstract
In September 1992, the recommendation G.728, which a 16 kbps LD-CELP speech coder submitted by AT&T was standardized by CCITT. In the process of ratification test, the coder´s performance was equivalent to or better than that of 32 kbps ADPCM for all conditions tested. This paper, which is based on a G.728 encoding-decoding system simulated in software, studies and tests different parts of the algorithm, especially that of the postfilter
Keywords
adaptive filters; filtering theory; linear predictive coding; speech coding; 16 kbit/s; CCITT; G.728 encoding-decoding system; LD-CELP speech coder; adaptive postfilter; Adaptive filters; Degradation; Frequency response; Frequency synthesizers; Noise level; Noise reduction; Quantization; Signal synthesis; Speech enhancement; Speech synthesis;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing, 1996., 3rd International Conference on
Conference_Location
Beijing
Print_ISBN
0-7803-2912-0
Type
conf
DOI
10.1109/ICSIGP.1996.567354
Filename
567354
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