Method for reducing the search complexity in...

Details Method for reducing the search complexity in... Method for reducing the search complexity in...

G - Physics

10

L

354/47

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

Patent

CA 2037475

A method of encoding speech includes a limited search of a tree-code excitation codebook with a closed loop gain calculation for each test path under consideration. The gain calculation occurs when minimizing an error distance measurement between a synthetic signal defined by each test path being considered and the appropriate speech signal by optimizing a scaling factor of the synthetic signal. The encoding method achieves a significant reduction in computational complexity with minimal loss of performance.

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