Real-time audio source separation by delay and attenuation...

Details Real-time audio source separation by delay and attenuation... Real-time audio source separation by delay and attenuation...

2006-08-08

2006-08-08

Pendleton, Brian T. (Department: 2644)

Electrical audio signal processing systems and devices

Directive circuits for microphones

C381S066000, C702S190000

Reexamination Certificate

active

07088831

ABSTRACT:
A system is provided for separating two audio channels recorded by an array of microphones. The system includes a calibration module for normalizing gain levels between a plurality of channels on each of a plurality of date frames, wherein each data frame is expressed in terms of time. The system further includes a delay parameter estimation module for accepting an output comprising the normalized channels, and estimating a delay parameter for a plurality of data frame sizes over a plurality of lag times, and sorting delays to generate corresponding source separated outputs.

REFERENCES:
patent: 5208786 (1993-05-01), Weinstein et al.
patent: 5515445 (1996-05-01), Baumhauer et al.
patent: 5694474 (1997-12-01), Ngo et al.
patent: 6317703 (2001-11-01), Linsker
patent: 2001/0031053 (2001-10-01), Feng et al.

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