Method for noise weighting filtering

Details Method for noise weighting filtering Method for noise weighting filtering

H - Electricity

04

M

H04M 1/74 (2006.01) G10K 11/175 (2006.01) G10L 19/02 (2006.01) H04B 15/00 (2006.01)

Patent

CA 2165351

The invention is used to shape noise in time domain and frequency domain coding schemes. The method advantageously uses a noise weighting filter based on a filterbank with variable gains. A method is presented for computing the gains in the noise weighting filterbank with filter parameters derived from the masking properties of speech. Illustrative embodiments of the method in various coding schemes are illustrated.

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