Audio processing device
AssigneeCanon Kabushiki Kaisha
InventorsMasafumi Kimura, Fumihiro Kajimura
Life of this patent
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Abstract
An audio processing device including a first audio collecting unit configured to convert an audio vibration into an electric signal and acquire an audio signal includes a shielding unit having a predetermined resonant frequency that shields the first audio collecting unit from an influence of airflow outside the device; and an acquiring unit configured to acquire, as a first audio signal, an audio signal in a predetermined frequency band lower than the resonant frequency of the shielding unit from among the audio signal acquired by the first audio collecting unit that is shielded from the influence of the air flow outside the device by the shielding unit.
Claims18
An audio processing device including a first audio collecting unit configured to convert an audio vibration into an electric signal and acquire an audio signal, comprising:
- a shielding unit having a predetermined resonant frequency that shields the first audio collecting unit from an influence of airflow outside the device;
- and
- an acquiring unit configured to acquire, as a first audio signal, an audio signal in a predetermined frequency band lower than the resonant frequency of the shielding unit from among the audio signal acquired by the first audio collecting unit that is shielded from the influence of the air flow outside the device by the shielding unit.
An audio processing device including a first microphone capable of reducing a wind noise and a second microphone incapable of reducing a wind noise, comprising:
- a shielding unit configured to shield the first microphone from an influence of airflow outside the device and having a predetermined resonant frequency;
- a first extracting unit configured to extract an audio signal in a first frequency band lower than the resonant frequency of the shielding unit from among the audio signal acquired by the first microphone;
- a second extracting unit configured to extract an audio signal in a second frequency band higher than the predetermined resonant frequency from among the audio signal acquired by the second microphone;
- and
- an acquiring unit configured to acquire an audio signal, in which the audio signal acquired by the first extracting unit is combined with the audio signal acquired by the second extracting unit.
Dependencies are inferred from the claim text.