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