Abstract | ||
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A full-duplex 16 or 9.6 k bits/sec speech codec based on the multi-pulse excited LPC coding technique has been developed. Cross-correlation analysis was used for the pulse search method. The codec was implemented by using five NEC 7720 Digital Signal Processor LSI chips ; four DSPs for the coder and one DSP for the decoder. A general purpose microprocessor was also used for system control. Reconstructed speech was quite natural and almost undiscernible from original speech at 16 k bits/sec and still quite good at 9.6 k bits/sec. Signal to noise power ratio for a sine wave signal was 30 dB at 16 k bits/sec. |
Year | DOI | Venue |
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1985 | 10.1109/ICASSP.1985.1168232 | Acoustics, Speech, and Signal Processing, IEEE International Conference ICASSP '85. |
Keywords | DocType | Volume |
chip,digital signal processor,control systems,cross correlation,decoding,national electric code,linear predictive coding,digital signal processors | Conference | 10 |
Citations | PageRank | References |
0 | 0.34 | 2 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Wake, Y. | 1 | 0 | 0.34 |
Tanaka, S. | 2 | 0 | 0.34 |
Ozawa, K. | 3 | 65 | 6.63 |
Araseki, T. | 4 | 5 | 2.66 |