DocumentCode :
1749739
Title :
eX-CELP: a speech coding paradigm
Author :
Gao, Yang ; Benyassine, Adil ; Thyssen, Jes ; Su, Huan-yu ; Shlomot, Eyal
Volume :
2
fYear :
2001
fDate :
2001
Firstpage :
689
Abstract :
This paper presents the core technology of novel enhancements to achieve toll quality at 4 kbps, our experiments and test results traditional CELP coding, coined eXtended CELP (eX-CELP). It is showed that this technology is also successful and suitable for centered on a combined and selective usage of closed-loop/open-both high and medium bit rates. Fig. I and Fig.2 illustrate the basic loop approach, and variant algorithm structure concept. The above structure of the eX-CELP encoder and decoder. two concepts are complemented by new features and refined One of the main themes of the eX-CELP technology is the existing technologies. The eX-CELP paradigm was used in judicious combination of the closed-loop approach and the open-several speech coding systems. It is the core technology of the loop approach, together with a careful selective usage of them. recently chosen candidate for the 3G-CDMA speech codec This mechanism is coined COLA, and its main objective is to standard. It was the best candidate for ITU-T 4 kbps codec intelligently employ the most appropriate approach for different qualification test, and became the basis technology for a types of input signals in order to preserve the perceptually consortium candidate to the ITU-T 4 kbps speech coding important contents. Another important feature in the eX-CELP competition
Keywords :
linear predictive coding; speech codecs; speech coding; 3G-CDMA speech codec standard; 4 kbit/s; CELP coding; ITU-T codec qualification test; closed-loop/open-loop approach; eX-CELP; eXtended CELP; speech coding; speech coding paradigm; variant algorithm structure concept; Appropriate technology; Bit rate; Code standards; Decoding; Delay; Linear predictive coding; Qualifications; Speech codecs; Speech coding; System testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
ISSN :
1520-6149
Print_ISBN :
0-7803-7041-4
Type :
conf
DOI :
10.1109/ICASSP.2001.941008
Filename :
941008
Link To Document :
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