Patent ID: 9437199
Filing Date: 2016-09-06
CPC Classification: G10L

Claim Text:
1. A method of separating, at least in part, one or more particular digital audio source signals contained in a mixed multichannel digital audio signal, the mixed signal being obtained by mixing a plurality of digital audio source signals and including representative values of the particular source signal(s), the method comprising: determining the modulus of the amplitude or the normalized power of the particular source signal(s) from the representative values in the time-frequency plane of said particular source signal(s) contained in the mixed signal; and then performing linearly constrained minimum variance spatial filtering in order to obtain, at least in part, each particular source signal, said filtering being based on the distribution of said particular source signal between at least two channels of the mixed signal, and the modulus of the amplitude or the normalized power of said particular source signal being used as a linear constraint of the filter.