Invention Grant
US08194881B2 Detection and suppression of wind noise in microphone signals 有权
麦克风信号中风噪声的检测和抑制

Detection and suppression of wind noise in microphone signals
Abstract:
To reliably and consistently detect desirable sounds, a system detects the presence of wind noise based on the power levels of audio signals. A first transducer detects sound originating from a first direction and a second transducer detects sound originating from a second direction. The power levels of the sound are compared. When the power level of the sound received from the second transducer is less than the power level of the sound received from the first transducer by a predetermined value, wind noise may be present. A signal processor may generate an output from one or a combination of the audio signals, based on a wind noise detection.
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