Speech coder

Details Speech coder Speech coder

G - Physics

10

L

G10L 19/08 (2006.01) G10L 19/00 (2006.01) G10L 5/00 (1995.01)

Patent

CA 2154192

A long-period prediction circuit, which is provided in this speech coder end outputs an optimum delay code of delay codes indicative of a pitch correlation of a speech signal, extracts delay codes by selecting a predetermined section of delay codes and/or while evenly or unevenly thinning out the delay codes, conducts preliminary selection of delay codes through closed-loop search of the extracted delay codes and determines an optimum delay code by executing closed-loop search with respect to the preliminarily selected delay codes.

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