Patent ID: 9082410
Filing Date: 2015-07-14
Classification: G10L

Abstract:
1. An audio processing apparatus comprising: a first microphone; a second microphone; a masking unit configured to mask movement of air from outside of the apparatus to said second microphone so that a frequency higher than a first frequency of an output signal of the second microphone is attenuated, wherein the first frequency is higher than a frequency corresponding to a wind noise; a high-pass filter configured to extract a frequency component within a first range, which is higher than the first frequency, of an output signal of said first microphone; an adaptive filter configured to process the output signal of the second microphone in which the frequency higher than the first frequency of an output signal of the second microphone is attenuated, wherein the adaptive filter processes the output signal of the second microphone so that a difference between the output signal of the first microphone and the output signal of the second microphone is minimized; a low-pass filter configured to extract a frequency component within a second rang, which is lower than the first frequency, of an output signal of said second microphone; an addition unit configured to add an output signal of said high-pass filter and an output signal of said low-pass filter.