Multi-pulse coding system

Details Multi-pulse coding system Multi-pulse coding system

G - Physics

10

L

354/47

G10L 19/10 (2006.01)

Patent

CA 1308193

ABSTRACT OF THE DISCLOSURE A digital speech signal sampled at a predetermined interval is stored in a memory. An LPC coefficient is developed from the speech signal and thus developed LPC coefficient specifies coefficient of a recursive filter. The speech signal read out from the memory is backwardly supplied to the recursive filter in the reverse order to the sampling order of the speech signal. A plurality of multi-pulses are determined on the basis of the crosscorrelation coefficients between the speech and an impulse response of the recursive filter obtained by the recursive filter.

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