Background sound removal for privacy and personalization use
First Claim
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1. A system for background sound removal, the system comprises:
- a noise reduction circuit arranged to apply a background sound reduction process on multiple samples of background sound and speech to provide first signals that comprise residual background sound;
a background cancellation circuit arranged to remove the residual background sound from the first signals to provide second signals; and
an output circuit arranged to output a mixture of the second signals and at least zero selected signals to a sound generating circuit that is arranged to output audio signals representative of the mixture.
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Abstract
A system for background sound removal, the system may include: a noise reduction circuit arranged to apply a background sound reduction process on multiple samples of background sound and speech to provide first signals that comprise residual background sound; a background cancellation circuit arranged to remove the residual background sound from the first signals to provide second signals; and an output circuit arranged to output a mixture of the second signals and at least zero selected signals to a sound generating circuit that is arranged to output audio signals representative of the mixture.
19 Citations
21 Claims
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1. A system for background sound removal, the system comprises:
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a noise reduction circuit arranged to apply a background sound reduction process on multiple samples of background sound and speech to provide first signals that comprise residual background sound; a background cancellation circuit arranged to remove the residual background sound from the first signals to provide second signals; and an output circuit arranged to output a mixture of the second signals and at least zero selected signals to a sound generating circuit that is arranged to output audio signals representative of the mixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for background sound removal, the method comprises:
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applying, by a noise reduction circuit, a background sound reduction process on multiple samples of background sound and speech to provide first signals that comprise residual background sound; removing, by a background cancellation circuit, the residual background sound from the first signals to provide second signals; and outputting, by an output circuit, a mixture of the second signals and at least zero selected signals to a sound generating circuit that is arranged to output audio signals representative of the mixture.
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13. A non-transitory computer readable medium that stores instructions for:
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applying a background sound reduction process on multiple samples of background sound and speech to provide first signals that comprise residual background sound; removing the residual background sound from the first signals to provide second signals; and outputting a mixture of the second signals and at least zero selected signals to a sound generating circuit that is arranged to output audio signals representative of the mixture.
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14. A system for background sound removal, the system comprises:
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a processor arranged to remove background sound from multiple samples from multiple microphones to provide background sound removed signals; a memory arranged to store multiple samples of desired background sounds; an interface coupled between the processor and a sound generating circuit; wherein the processor is further adapted to;
3 determine whether to send to the sound generating circuit (a) only the background removed signals;
or (b) a mixture of the background removed signals and samples representative of a desired background sound; andprovide to the sound generating circuit, via the interface, signals in response to the determination. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification