Design of a digital speech processor

Author

Li, Bin ; Chen, Junbi

Author_Institution

Comasic Design Co. Ltd., Hebei, China

fYear

1996

fDate

21-24 Oct 1996

Firstpage

147

Lastpage

150

Abstract

This paper describes the design of a flexible hardware structure called Digital Speech Processor (DSP), which is the core module of implementing several code-excited linear prediction (CELP) algorithms such as IS-96, IS-54, RCR-27, G.728, etc. In China, there are a lot of communication systems being used, therefore, it is very difficult to determine a common speech coding algorithm, instead, many kinds of speech coding algorithms are coexisting. For this reason, finding an effective way to implement these speech coding algorithms can reduce the product development time and quickly go to market. The DSP described in this paper is more flexible for implementing many of the speech coding algorithms mentioned above. The structure of DSP is presented in this paper; also included are VHDL descriptions of some modules

Keywords

digital signal processing chips; hardware description languages; linear predictive coding; speech coding; G.728; IS-54; IS-96; RCR-27; VHDL descriptions; code-excited linear prediction algorithms; digital speech processor; flexible hardware structure; product development time; speech coding algorithms; Algorithm design and analysis; Circuit analysis computing; Computer aided instruction; Computer aided manufacturing; Digital signal processing; Hardware; Speech analysis; Speech coding; Speech processing; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC, 1996., 2nd International Conference on

Conference_Location

Shanghai

Print_ISBN

7-5439-0940-5

Type

conf

DOI

10.1109/ICASIC.1996.562773

Filename

562773