Speech coder using a non-uniform pulse type sparse excitation co

Details Speech coder using a non-uniform pulse type sparse excitation co Speech coder using a non-uniform pulse type sparse excitation co

1995-08-08

1998-06-30

MacDonald, Allen R.

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

704230, G10L 900

Patent

active

057748403

ABSTRACT:
An excitation codebook 351 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 351 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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