Method and apparatus for multi-pulse speech coding

Details Method and apparatus for multi-pulse speech coding Method and apparatus for multi-pulse speech coding

1987-09-16

1989-10-10

Shoop, Jr., William M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 36, G10L 302

Patent

active

048737232

ABSTRACT:
A multi-pulse speech coder uses synthetic filters for generating crosscorrelated signals without pitch prediction and autocorrelated signals with pitch prediction. These signals are used as a basis for calculations to detect the correlations between the signals with pitch predictions and input speech signals.

REFERENCES:
patent: 4486899 (1984-12-01), Fushikida
Atal et al. of Bell Telephone Labs. of the U.S., "A New Model of LPC Excitation for Producing Natural-Sounding Speech at Low Bit Rates", Proc. ICASSP, pp. 614-617, 1982.
Ozawa et al., "Multi-Pulse Excited Speech Coder Based on Maximum Cross Correlation Search Algorithm", IEEE Global Telecommunications Conference, 23.3, Dec. 1983.
Ozawa et al., "High Quality Multi-Pulse Speech Coder with Pitch Prediction", Proc. ICASSP, 33.3, Apr. 1986.

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