Digital speech coder having optimized signal energy parameters

Details Digital speech coder having optimized signal energy parameters Digital speech coder having optimized signal energy parameters

G - Physics

10

L

G10L 19/12 (2006.01) G10L 19/08 (2006.01) G10L 19/00 (2006.01)

Patent

CA 2065731

A speech coder and decoder methodology wherein pitch excitation and codebook excitation source energies (100) are represented by parameters that are readily transmissible with minimal transmission capacity requirements. The parameters are the long term energy value, a short term correction factor which is applied to the long term energy value to match the short term energy, and proportionality factor(s) that specify the relative energy contribution of the excitation sources to the short term value (101)

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