DocumentCode :
703649
Title :
A new intraframe LSP interpolation technique for low bit rate speech coding
Author :
Mao, J.S. ; Chan, S.C. ; Ho, K.L.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
fYear :
1998
fDate :
8-11 Sept. 1998
Firstpage :
1
Lastpage :
4
Abstract :
This paper presents a linear LSP interpolation between neighboring frames. Usually there are two to four formants in speech spectrum envelope, and the LSF(Line Spectral Frequency) parameters have an order property. In this paper, we divide the LSF parameters into three sub-vectors, and predict them by the vectors of previous and next frames. An efficient and reliable LSP vector distance measure is proposed for this interpolation algorithm. The interpolated LSP vectors are utilized in our mixed excitation LPC vocoder, which is operated at 1.5 kbps. Informal listening tests indicate that the synthesized speech sounds natural and intelligible.
Keywords :
error statistics; interpolation; speech coding; LSF parameters; intraframe LSP interpolation technique; line spectral frequency parameters; low bit rate speech coding; reliable LSP vector distance measure; speech spectrum envelope; synthesized speech; Bit rate; Distortion measurement; Indexes; Interpolation; Speech; Speech coding; Vocoders;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Conference (EUSIPCO 1998), 9th European
Conference_Location :
Rhodes
Print_ISBN :
978-960-7620-06-4
Type :
conf
Filename :
7090120
Link To Document :
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