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US 2023/0156330 A1Published application
Method and apparatus for active reduction of mechanically coupled vibration in microphone signals
AssigneeGoPro, Inc.
InventorsTimothy Dick, Eric Penrod, Erich Tisch
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Abstract
An integrated circuit includes a processor that upsamples a vibration signal. The processor determines a correlation value. The correlation value may be based on a microphone signal, the upsampled vibration signal, or both. The processor filters the vibration signal to remove a noise portion and obtain a processed microphone signal. The processor outputs the processed microphone signal.
Claims20
An integrated circuit, comprising:
- a processor configured to:
- upsample a vibration signal to obtain an upsampled vibration signal, wherein the upsampled vibration signal has one or more axial components;
- determine correlation values for the one or more axial components, wherein a respective axial component has a corresponding correlation value based on a microphone signal and the upsampled vibration signal;
- filter the axial component corresponding to a determined highest correlation value from amongst the correlation values of the upsampled vibration signal to obtain a processed microphone signal;
- and
- output the processed microphone signal.
3 more elements
A method, comprising:
- upsampling a vibration signal to obtain an upsampled vibration signal, wherein the upsampled vibration signal has one or more axial components;
- determining correlation values for the one or more axial components, wherein a respective axial component has a corresponding correlation value based on a microphone signal and the upsampled vibration signal;
- filtering the axial component corresponding to a determined highest correlation value from amongst the correlation values of the upsampled vibration signal to remove a noise portion of the microphone signal and obtain a processed microphone signal;
- and
- outputting the processed microphone signal.
2 more elements
An image capture device comprising:
- a processor configured to:
- upsample a vibration signal to obtain an upsampled vibration signal, wherein the upsampled vibration signal has one or more axial components;
- determine correlation values for the one or more axial components, wherein a respective axial component has a corresponding correlation value based on a microphone signal and the upsampled vibration signal;
- determine a highest correlation value from amongst the correlation values;
- filter the axial component corresponding to the determined highest correlation value to obtain a processed microphone signal;
- and
- output the processed microphone signal.
4 more elements
Dependencies are inferred from the claim text.