Apparatus for encoding and apparatus for decoding speech and...

Details Apparatus for encoding and apparatus for decoding speech and... Apparatus for encoding and apparatus for decoding speech and...

G - Physics

10

L

G10L 19/10 (2006.01) G10L 19/02 (2006.01)

Patent

CA 2262293

A speech and musical signal codec employing a band splitting technique encodes sound source signals of each of a plurality of bands using a small number of bits. The codec includes a second pulse position generating circuit, to which an index output by a minimizing circuit and a first pulse position vector P-= (P1, P2, ..., P M) are input, for revising the first pulse position vector using a pulse position revision quantity d- i = (d i1, d i2, ..., d iM) specified by the index and outputting the revised vector to a second sound source generating circuit as a second pulse position vector P- t = (P1+d i1, P2+d i2, ..., P M+d iM).

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