Title :
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
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;
Conference_Titel :
Electrotechnics, 1988. Conference Proceedings on Area Communication, EUROCON 88., 8th European Conference on
Conference_Location :
Stockholm
DOI :
10.1109/EURCON.1988.11099
