Real time implementation of forward gain-adaptive vector quantizer

Author

Chmielewski, Andrzej ; Domaszewicz, Jaroslaw ; Milek, Janusz

Author_Institution

Inst. of Telecommun., Warsaw Tech. Univ., Poland

fYear

1988

fDate

13-17 Jun 1988

Firstpage

40

Lastpage

43

Abstract

A realization of a real-time forward-adaptive vector quantizer (VQ) for speech waveform coding on the TMS32010 digital-signal processor (DSP) chip is described. Two encoding algorithms have been implemented: the full search (vector dimension K=5) and search in subcodebook determined by the index and sign of the input vector co-ordinate having maximum magnitude (K=8). The speech signal is sampled at 8 kHz, and the vector quantization rate is 1 bit/sample. The hardware and software developed resides on two cards for use with IBM PC/XT-compatible computers

Keywords

data compression; digital signal processing chips; encoding; speech analysis and processing; telecommunications computing; DSP chip; IBM PC/XT-compatible computers; TMS32010 digital-signal processor; data compression; encoding algorithms; forward-adaptive vector quantizer; hardware; software; speech signal; speech waveform coding; subcodebook; Bit rate; Computational complexity; Data compression; Digital signal processing chips; Digital signal processors; Encoding; Hardware; Signal processing algorithms; Speech coding; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnics, 1988. Conference Proceedings on Area Communication, EUROCON 88., 8th European Conference on

Conference_Location

Stockholm

Type

conf

DOI

10.1109/EURCON.1988.11099

Filename

11099