Real-time audio source separation by delay and attenuation compensation in the time domain
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United States of America Patent
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Aug 8, 2006
Grant Date -
Jun 19, 2003
app pub date -
Dec 6, 2001
filing date -
Dec 6, 2001
priority date (Note) -
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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.
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