Audio system and method
First Claim
1. 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, the speaker having a larger diaphragm than the microphone;
a wind noise detector arranged to receive and process the microphone 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.
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Accused Products
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.
44 Citations
18 Claims
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1. An audio processing system, comprising:
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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, the speaker having a larger diaphragm than the microphone; a wind noise detector arranged to receive and process the microphone 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A portable electronic device comprising:
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an audio sub-system; and an audio processing system, the audio processing system including; a microphone arranged to generate a microphone output signal responsive to an acoustic input received at the microphone, a speaker arranged to generate an acoustic output responsive to a speaker input signal and to generate a speaker output signal responsive to an acoustic input received at the speaker, a wind noise detector arranged to receive and process the microphone 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, wherein the processed audio signal output by the signal processor is supplied to the audio sub-system; and wherein the speaker has a larger diaphragm than the microphone. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A portable electronic device comprising:
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an audio sub-system; and an audio processing system, the audio processing system including; a microphone arranged to generate a microphone output signal responsive to an acoustic input received at the microphone, a speaker arranged to generate an acoustic output responsive to a speaker input signal and to generate a speaker output signal responsive to an acoustic input received at the speaker, a wind noise detector arranged to receive and process the microphone 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, wherein the processed audio signal output by the signal processor is supplied to the audio sub-system; and wherein the audio sub-system is a media sub-system and the processed audio signal is supplied to the media sub-system for recording.
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Specification