Speech coder using a non-uniform pulse type sparse...

Details Speech coder using a non-uniform pulse type sparse... Speech coder using a non-uniform pulse type sparse...

G - Physics

10

L

G10L 19/10 (2006.01) G10L 19/06 (2006.01) G10L 19/00 (2006.01) G10L 9/14 (1995.01)

Patent

CA 2155583

An excitation codebook includes a plurality of codevectors each generated with pulse positions and amplitudes obtained by training such as to reduce the distance between the codevector and training speech data. The excitation codebook further includes a plurality of sparse codevectors each generated with the pulse number, pulse positions and amplitudes obtained by training such as to reduce the distance between the codevector and training speech data, the individual codevectors having different pulse numbers.

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