SYSTEMS, METHODS, APPARATUS, AND COMPUTER PROGRAM PRODUCTS FOR ENHANCED ACTIVE NOISE CANCELLATION
First Claim
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1. A method of audio signal processing, said method comprising performing each of the following acts using a device configured to process audio signals:
- based on information from a first audio signal, producing an anti-noise signal;
separating a target component of a second audio signal from a noise component of the second audio signal to produce at least one among (A) a separated target component and (B) a separated noise component; and
based on the anti-noise signal, producing an audio output signal,wherein the audio output signal is based on at least one among (A) the separated target component and (B) the separated noise component.
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Abstract
Uses of an enhanced sidetone signal in an active noise cancellation operation are disclosed.
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Citations
48 Claims
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1. A method of audio signal processing, said method comprising performing each of the following acts using a device configured to process audio signals:
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based on information from a first audio signal, producing an anti-noise signal; separating a target component of a second audio signal from a noise component of the second audio signal to produce at least one among (A) a separated target component and (B) a separated noise component; and based on the anti-noise signal, producing an audio output signal, wherein the audio output signal is based on at least one among (A) the separated target component and (B) the separated noise component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A computer-readable medium comprising instructions which when executed by at least one processor cause the at least one processor to perform a method of audio signal processing, said instructions comprising:
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instructions which when executed by a processor cause the processor to produce an anti-noise signal based on information from a first audio signal; instructions which when executed by a processor cause the processor to separate a target component of a second audio signal from a noise component of the second audio signal to produce at least one among (A) a separated target component and (B) a separated noise component; and instructions which when executed by a processor cause the processor to produce an audio output signal based on the anti-noise signal, wherein the audio output signal is based on at least one among (A) the separated target component and (B) the separated noise component. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for audio signal processing, said apparatus comprising:
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means for producing an anti-noise signal based on information from a first audio signal; means for separating a target component of a second audio signal from a noise component of the second audio signal to produce at least one among (A) a separated target component and (B) a separated noise component; and means for producing an audio output signal based on the anti-noise signal, wherein the audio output signal is based on at least one among (A) the separated target component and (B) the separated noise component. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. An apparatus for audio signal processing, said apparatus comprising:
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an active noise cancellation filter configured to produce an anti-noise signal based on information from a first audio signal; a source separation module configured to separate a target component of a second audio signal from a noise component of the second audio signal to produce at least one among (A) a separated target component and (B) a separated noise component; and an audio output stage configured to produce an audio output signal based on the anti-noise signal, wherein the audio output signal is based on at least one among (A) the separated target component and (B) the separated noise component. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification