Vector sum excited linear prediction (VSELP) speech coding at 8 kbps

Author

Gerson, Ira A. ; Jasiuk, Mark A.

Author_Institution

Motorola Inc., Schaumburg, IL, USA

fYear

1990

fDate

3-6 Apr 1990

Firstpage

461

Abstract

The vector sum excited linear prediction speech coder is presented. It utilizes a codebook with a structure that allows for a very efficient search procedure. Other advantages of the VSELP codebook structure are discussed, and a detailed description of an 8-kb/s VSELP coder is given. This coder was selected by the Telecommunications Industry Association (TIA) as the standard for use in North American digital cellular telephone systems. The coder uses two VSELP excitation codebooks, a gain quantizer which is robust to channel errors, and a novel adaptive pre/postfilter arrangement

Keywords

cellular radio; encoding; filtering and prediction theory; speech analysis and processing; vocoders; 8 kbit/s; North American digital cellular telephone systems; VSELP codebook structure; VSELP excitation codebooks; gain quantizer; vector sum excited linear prediction speech coder; Adaptive filters; Bit rate; Code standards; Communication industry; Computational complexity; Decoding; Linear predictive coding; Research and development; Robustness; Speech coding; Speech synthesis; Telecommunication standards; Telephony; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.115749

Filename

115749