Residual excited predictive speech coding system

Details Residual excited predictive speech coding system Residual excited predictive speech coding system

1979-03-30

1980-09-02

Morrison, Malcolm A.

G10L 100

Patent

active

042208190

ABSTRACT:
In a speech processing arrangement for synthesizing more natural sounding speech, a speech signal is partitioned into intervals. For each interval, a set of coded prediction parameter signals, pitch period and voicing signals, and a set of signals corresponding to the spectrum of the prediction error signal are produced. A replica of the speech signal is generated responsive to the coded pitch period and voicing signals as modified by the coded prediction parameter signals. The pitch period and voicing signals are shaped responsive to the prediction error spectral signals to compensate for errors in the predictive parameter signals whereby the speech replica is natural sounding.

REFERENCES:
patent: 2928902 (1960-03-01), Vilbig
patent: 3975587 (1976-08-01), Dunn et al.
patent: 3979557 (1976-09-01), Schulman et al.
patent: 4081605 (1978-03-01), Kitawaki et al.
M. Sambur, et al., "On Reducing the Buzz in LPC Synthesis," J. Ac. Soc. of America, Mar. 1978, pp. 918-924.

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