Invention Grant
US08698921B2 Audio processing device, audio processing method, program, and audio acquisition apparatus
有权
音频处理装置,音频处理方法,程序和音频采集装置
- Patent Title: Audio processing device, audio processing method, program, and audio acquisition apparatus
- Patent Title (中): 音频处理装置,音频处理方法,程序和音频采集装置
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Application No.: US13373097Application Date: 2011-11-04
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Publication No.: US08698921B2Publication Date: 2014-04-15
- Inventor: Kwangsoo Park
- Applicant: Kwangsoo Park
- Applicant Address: JP Kawasaki-Shi, Kanagawa
- Assignee: Renesas Electronics Corporation
- Current Assignee: Renesas Electronics Corporation
- Current Assignee Address: JP Kawasaki-Shi, Kanagawa
- Agency: McGinn IP Law Group, PLLC
- Priority: JP2010-261522 20101124
- Main IPC: H04N5/217
- IPC: H04N5/217

Abstract:
In an audio-accompanying moving-image taking apparatus, a noise period setting unit sets a second period with respect to an audio signal acquired by image-taking. The second period is a period between the endpoint of a first period which is a predetermined period starting from the timing when a drive instruction is made to a drive unit for driving a lens and the point in time when the drive unit stops driving according to the drive instruction. A noise level estimation unit estimates a noise level using the signal present in the second period set by the noise period setting unit. A noise suppression unit suppresses noise from the signal present in the second period using the noise level estimated by the noise estimation unit.
Public/Granted literature
- US20120127343A1 Audio processing device, audio processing method, program, and audio acquisition apparatus Public/Granted day:2012-05-24
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