BEAMFORMING PRE-PROCESSING FOR SPEAKER LOCALIZATION
First Claim
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1. A method comprising:
- beamforming a first plurality of microphone signals using at least one beamforming weight to obtain a first beamformed signal;
beamforming a second plurality of microphone signals using the at least one beamforming weight to obtain a second beamformed signal; and
adjusting the at least one beamforming weight so that the power density of at least one perturbation component present in the first or the second plurality of microphone signals is reduced.
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Abstract
Methods and apparatus to beamform a first plurality of microphone signals using at least one beamforming weight to obtain a first beamformed signal, beamform a second plurality of microphone signals using the at least one beamforming weight to obtain a second beamformed signal, and adjust the at least one beam forming weight so that the power density of at least one perturbation component present in the first or the second plurality of microphone signals is reduced.
11 Citations
20 Claims
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1. A method comprising:
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beamforming a first plurality of microphone signals using at least one beamforming weight to obtain a first beamformed signal; beamforming a second plurality of microphone signals using the at least one beamforming weight to obtain a second beamformed signal; and adjusting the at least one beamforming weight so that the power density of at least one perturbation component present in the first or the second plurality of microphone signals is reduced. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18, 19)
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11. An article, comprising:
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a non-transitory computer readable storage medium having stored instructions that enable a machine to; beamform a first plurality of microphone signals using at least one beamforming weight to obtain a first beamformed signal; beamform a second plurality of microphone signals using the at least one beamforming weight to obtain a second beamformed signal; and adjust the at least one beamforming weight so that the power density of at least one perturbation component present in the first or the second plurality of microphone signals is reduced. - View Dependent Claims (12, 13, 14)
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20. A system, comprising:
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a first beamformer module to receive a first plurality of microphone signals using at least one beamforming weight to obtain a first beamformed signal; a second beamformer module to receive a second plurality of microphone signals using the at least one beamforming weight to obtain a second beamformed signal; and a control module, which includes a processor, to adjust the at least one beamforming weight so that the power density of at least one perturbation component present in the first or the second plurality of microphone signals is reduced.
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Specification