Method and apparatus for identifying sound sources from mixed sound signal
First Claim
1. A method of discriminating sound sources, the method comprising:
- separating sound source signals from a mixed sound signal including a plurality of sound source signals that are input through a microphone array;
estimating a transfer function of a mixing channel mixing the plurality of sound source signals from relationships between the mixed sound signal and the separated sound source signals;
obtaining input signals of the microphone array by multiplying the estimated transfer function by the separated sound source signals; and
calculating location information of each sound source using a predetermined sound source location estimation method based on the obtained input signals.
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Abstract
A method and apparatus for discriminating sound sources from a mixed sound is provided. The method includes separating sound source signals from a mixed sound signal including a plurality of sound source signals that are input through a microphone array, estimating a transfer function of a mixing channel mixing the plurality of sound source signals from relationships between the mixed sound signal and the separated sound source signals, obtaining input signals of the microphone array by multiplying the estimated transfer function by the separated sound source signals, and calculating location information of each sound source using a predetermined sound source location estimation method based on the obtained input signals.
62 Citations
13 Claims
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1. A method of discriminating sound sources, the method comprising:
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separating sound source signals from a mixed sound signal including a plurality of sound source signals that are input through a microphone array; estimating a transfer function of a mixing channel mixing the plurality of sound source signals from relationships between the mixed sound signal and the separated sound source signals; obtaining input signals of the microphone array by multiplying the estimated transfer function by the separated sound source signals; and calculating location information of each sound source using a predetermined sound source location estimation method based on the obtained input signals. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for discriminating sound sources, the apparatus comprising:
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a sound source separation unit separating sound source signals from a mixed sound signal including a plurality of sound source signals that are input through a microphone array; a transfer function estimation unit estimating a transfer function of a mixing channel mixing the plurality of sound source signals from relationships between the mixed sound signal and the separated sound source signals; an input signal obtaining unit obtaining input signals of the microphone array by multiplying the estimated transfer function by the separated sound source signals; and a location information calculation unit calculating location information of each sound source using a predetermined sound source location estimation method based on the obtained input signals. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification