Reducing search complexity for code-excited linear...

Details Reducing search complexity for code-excited linear... Reducing search complexity for code-excited linear...

G - Physics

10

L

G10L 19/12 (2006.01) G10L 19/00 (2006.01) G10L 9/14 (1995.01)

Patent

CA 2119697

REDUCING SEARCH COMPLEXITY FOR CODE-EXCITED LINEAR PREDICTION (CELP) CODING Abstract of the Disclosure A code-excited linear prediction (CELP) coding method and code divide the residual signal into frequency bands. Codebooks provided for each band decrease in size with increasing band frequency. Reduction in codebook size with increasing frequency together with reduction in sampling rate with decreasing frequency provide reductions in codebook search complexity that allow real time implementation on digital signal processor chips.

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