Detecting and reducing feedback
AssigneeSorenson IP Holdings, LLC
InventorJeffrey Bullough
Life of this patent
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Abstract
A computer-implemented method to detect and reduce feedback in an audio signal is disclosed. The method may include obtaining an audio signal. The method may further include separating the audio signal into a plurality of frequency bands. The method may also include, for each frequency band of the plurality of frequency bands, determining whether the frequency band includes feedback. The method may further include, for each frequency band determined to include feedback, attenuating the frequency band. The method may also include combining each frequency band of the plurality of frequency bands to produce an output audio signal.
Claims22
A computer-implemented method to detect and reduce feedback in an audio signal, the method comprising:
- obtaining an audio signal;
- separating the audio signal into a plurality of frequency bands;
- selecting a first frequency band of the plurality of frequency bands;
- obtaining a magnitude threshold and a duration threshold;
- in response to the first frequency band having a magnitude greater than the magnitude threshold for a duration longer than the duration threshold, attenuating the first frequency band;
- and
- combining the plurality of frequency bands, including the attenuated first frequency band, to produce an output audio signal.
A computer-implemented method to detect and reduce feedback in an audio signal, the method comprising:
- obtaining an audio signal;
- separating the audio signal into a plurality of frequency bands;
- for each frequency band of the plurality of frequency bands, determining whether the frequency band includes feedback;
- for each frequency band determined to include feedback, attenuating the frequency band;
- and
- combining each frequency band of the plurality of frequency bands to produce an output audio signal.
A system to detect and reduce feedback in an audio signal, the system comprising:
- one or more processors, the one or more processors configured to:
- obtain an audio signal;
- separate the audio signal into a plurality of frequency bands;
- for each frequency band of the plurality of frequency bands, determine whether the frequency band includes feedback;
- and
- for each frequency band determined to include feedback, attenuate the frequency band.
Dependencies are inferred from the claim text.