DocumentCode
1184368
Title
On the periodicity of speech coded with linear-prediction based analysis by synthesis coders
Author
Kleijn, W. Bastiaan
Author_Institution
Speech-Coding Res. Dept., AT&T Bell Labs., Murray Hill, NJ, USA
Volume
2
Issue
4
fYear
1994
fDate
10/1/1994 12:00:00 AM
Firstpage
539
Lastpage
542
Abstract
The closed-loop pitch predictor (CLPP) is an essential part of most linear-prediction based analysis-by-synthesis (LPAS) coders. The author discusses the relation between the periodicity of the original and reconstructed signals for LPAS coders with a CLPP. It is shown that the periodicity is unchanged if the periodicity of the original signal is generated with an autoregressive model and increases or decreases for several other signal classes. The theoretical findings are confirmed by experiments
Keywords
linear predictive coding; speech coding; stochastic processes; time series; vocoders; CLPP; LPAS coder; autoregressive model; closed-loop pitch predictor; linear-prediction based analysis by synthesis coders; original signal; periodicity; reconstructed signal; speech coding; Bit rate; Counting circuits; Delay; Filters; Signal generators; Signal synthesis; Speech analysis; Speech coding; Speech enhancement; Speech synthesis;
fLanguage
English
Journal_Title
Speech and Audio Processing, IEEE Transactions on
Publisher
ieee
ISSN
1063-6676
Type
jour
DOI
10.1109/89.326635
Filename
326635
Link To Document