DocumentCode :
387973
Title :
High quality multi-pulse speech coder with pitch prediction
Author :
Ozawa, Kazunori ; Araseki, Takashi
Author_Institution :
NEC Corporation, Kawasaki, Japan
Volume :
11
fYear :
1986
fDate :
31503
Firstpage :
1689
Lastpage :
1692
Abstract :
This paper describes multi-pulse speech coding with pitch prediction. Two realization approaches to the coding, which differ in regard to pitch predictor, are described. Coding performances for the two approaches are evaluated objectively and subjectively. The introduction of pitch prediction to a multipulse coder shows 2-3 dB SNR (Signal to Noise Ratio) improvement, and perceptually annoying noise is reduced over a conventional coder without pitch prediction, at bit rates above 8 kbps.
Keywords :
Bit rate; Filters; Linear predictive coding; Noise reduction; Proposals; Signal synthesis; Signal to noise ratio; Speech analysis; Speech coding; Speech synthesis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '86.
Type :
conf
DOI :
10.1109/ICASSP.1986.1169256
Filename :
1169256
Link To Document :
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