Audio System and Method
AssigneeNXP B.V.
InventorShawn Scarlett
Life of this patent
Estimating the term…
Abstract
An audio processing system and method are described. A microphone is arranged to generate a microphone output signal responsive to an acoustic input. A speaker is arranged to generate an acoustic output responsive to a speaker input signal and to generate a speaker output signal responsive to the acoustic input. A wind noise detector is arranged to receive and process the microphone output signal and/or the speaker output signal to detect wind noise. A signal processor is arranged to receive the microphone output signal and is configured to process the speaker output signal when wind noise has been detected. The microphone output signal is modified using a result of processing the speaker output signal to reduce the amount of wind noise in a processed audio signal output by the signal processor.
Claims14
An audio processing system, comprising:
- a microphone arranged to generate a microphone output signal responsive to an acoustic input;
- a speaker arranged to generate an acoustic output responsive to a speaker input signal and to generate a speaker output signal responsive to the acoustic input;
- a wind noise detector arranged to receive and process the microphone output signal and/or the speaker output signal to detect wind noise;
- and
- a signal processor arranged to receive the microphone output signal and configured to process the speaker output signal when wind noise has been detected and to modify the microphone output signal using a result of processing the speaker output signal to reduce the amount of wind noise in a processed audio signal output by the signal processor.
An audio processing method for reducing the amount of wind noise in an audio signal, comprising:
- monitoring a microphone output signal and/or a speaker output signal;
- processing the microphone output signal and/or the speaker output signal to detect the presence of wind noise in the microphone output signal and/or speaker output signal;
- and
- if wind noise is not detected then passing an audio signal including the microphone output signal to an audio sub-system and if wind noise is detected, then processing the speaker output signal to modify the microphone output signal using a result of processing the speaker output signal to reduce the amount of wind noise in the audio signal passed to the audio sub-system.
Dependencies are inferred from the claim text.