DocumentCode
3521104
Title
A fully vector quantised self-excited vocoder
Author
Salami, Redwan A. ; Hanzo, Lajos ; Appleby, Derek G.
Author_Institution
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fYear
1989
fDate
23-26 May 1989
Firstpage
124
Abstract
A computationally efficient stochastic vector quantization (VQ) scheme for the quantization of LPC parameters with less than 25 bits is proposed. The complexity of the self-excited vocoder (SEV) is reduced by using fast algorithms based on an efficient representation of the innovation sequence. When the suggested VQ scheme is deployed in the improved SEV, good communications speech quality is obtained at 4.8 kb/s. When the bit rate is increased to 6.8 kb/s, near-toll-quality speech is achieved
Keywords
encoding; filtering and prediction theory; speech analysis and processing; vocoders; 4.8 kbit/s; 6.8 kbit/s; LPC parameters; computationally efficient scheme; fast algorithms; near-toll-quality speech; speech quality; stochastic vector quantization; vector quantised self-excited vocoder; Bit rate; Delay; Filters; Linear predictive coding; Speech coding; Speech synthesis; Stochastic processes; Technological innovation; Vector quantization; Vocoders;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location
Glasgow
ISSN
1520-6149
Type
conf
DOI
10.1109/ICASSP.1989.266379
Filename
266379
Link To Document