System and method for adaptive power control
First Claim
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1. A method for providing adaptive power control, comprising:
- performing, using at least one hardware processor, frequency analysis on a primary acoustic signal to generate a plurality of frequency sub-bands, the primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound;
estimating a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the estimating of the power level comprising tracking the energy of the at least one frequency sub-band of the primary acoustic signal;
comparing the power level to at least one noise threshold; and
controlling a noise suppression system based on the comparison of the power level to the at least one noise threshold, the noise suppression system being configured to be powered on and off based on the comparison, the controlling the noise suppression system comprising providing continuity in an output signal in response to the noise suppression system being powered on or off by preserving a non-zero latency introduced by the noise suppression system.
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Abstract
Systems and methods for adaptive power control are provided. A minimum power level of a primary acoustic signal is estimated. The minimum power level may then be compared to at least one power threshold. Subsequently, a large power consuming system is controlled based on the comparison of the minimum power level to the power threshold.
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Citations
16 Claims
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1. A method for providing adaptive power control, comprising:
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performing, using at least one hardware processor, frequency analysis on a primary acoustic signal to generate a plurality of frequency sub-bands, the primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound; estimating a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the estimating of the power level comprising tracking the energy of the at least one frequency sub-band of the primary acoustic signal; comparing the power level to at least one noise threshold; and controlling a noise suppression system based on the comparison of the power level to the at least one noise threshold, the noise suppression system being configured to be powered on and off based on the comparison, the controlling the noise suppression system comprising providing continuity in an output signal in response to the noise suppression system being powered on or off by preserving a non-zero latency introduced by the noise suppression system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for providing adaptive power control, comprising:
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a frequency analysis module configured to perform, using at least one hardware processor, frequency analysis on a primary acoustic signal to generate a plurality of frequency sub-bands, the primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound; a power level estimate module configured to estimate a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the power level estimate module comprising a minimum statistics tracker to track a minimum energy of the at least one frequency sub-band of the primary acoustic signal; an analysis module configured to compare the power level to at least one power threshold; and a bypass engine configured to control a noise suppression system based on a result from the analysis module, the noise suppression system being configured to be powered on and off based on the comparison, the controlling the noise suppression system comprising providing continuity in an output signal in response to the noise suppression system being powered on or off by preserving a non-zero latency introduced by the noise suppression system. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory machine readable medium having embodied thereon a program, the program providing instructions for a method for providing adaptive power control, the method comprising:
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performing, using at least one hardware processor, frequency analysis on a primary acoustic signal to generate a plurality of frequency sub-bands, the primary acoustic signal having a plurality of components including a noise component, the primary acoustic signal representing at least one captured sound; estimating a power level of the noise component of the primary acoustic signal, the estimating of the power level occurring in at least one frequency sub-band of the primary acoustic signal, the estimating of the power level comprising tracking the energy of the at least one frequency sub-band of the primary acoustic signal; comparing the power level to at least one power threshold; and controlling a noise suppression system based on the comparison of the power level to the at least one power threshold, the noise suppression system being configured to be powered on and off based on the comparison, the controlling the noise suppression system comprising providing continuity in an output signal in response to the noise suppression system being powered on or off by preserving a non-zero latency introduced by the noise suppression system.
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Specification