Method and device of audio source separation
AssigneeRealtek Semiconductor Corp.
InventorsMing-Tang Lee, Chung-Shih Chu
Life of this patent
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Abstract
A method of audio source separation includes steps of applying a demixing matrix on a plurality of received signals to generate a plurality of separated results; performing a recognition operation on the plurality of separated results to generate a plurality of recognition scores; generating a constraint according to the plurality of recognition scores; and adjusting the demixing matrix according to the constraint; where the adjusted demixing matrix is applied to the plurality of received signals to generate a plurality of updated separated results from the plurality of received signals.
Claims20
A method of audio source separation, configured to separate audio sources from a plurality of received signals, the method comprising:
- applying a demixing matrix on the plurality of received signals to generate a plurality of separated results;
- performing a recognition operation on the plurality of separated results to generate a plurality of recognition scores, wherein the plurality of recognition scores are related to matching degrees between the plurality of separated results and a target signal;
- generating a constraint according to the plurality of recognition scores, wherein the constraint is a spatial constraint or a mask constraint;
- and
- adjusting the demixing matrix according to the constraint;
- wherein the adjusted demixing matrix is applied to the plurality of received signals to generate a plurality of updated separated results from the plurality of received signals;
- wherein the method of audio source separation is utilized for speech recognition.
An audio separation device, configured to separate audio sources from a plurality of received signals, the audio separation device comprising:
- a separation unit, for applying a demixing matrix on the plurality of received signals to generate a plurality of separated results;
- a recognition unit, for performing a recognition operation on the plurality of separated results to generate a plurality of recognition scores, wherein the plurality of recognition scores are related to matching degrees between the plurality of separated results and a target signal;
- a constraint generator, for generating a constraint according to the plurality of recognition scores, wherein the constraint is a spatial constraint or a mask constraint;
- and
- a demixing matrix generator, for adjusting the demixing matrix according to the constraint;
- wherein the adjusted demixing matrix is applied to the plurality of received signals to generate a plurality of updated separated results from the plurality of received signals;
- wherein the audio separation device is utilized for speech recognition.
Dependencies are inferred from the claim text.