发明授权
US08300835B2 Audio signal processing apparatus, audio signal processing method, audio signal processing program, and computer-readable recording medium
有权
音频信号处理装置，音频信号处理方法，音频信号处理程序和计算机可读记录介质
- 专利标题： Audio signal processing apparatus, audio signal processing method, audio signal processing program, and computer-readable recording medium
- 专利标题（中）： 音频信号处理装置，音频信号处理方法，音频信号处理程序和计算机可读记录介质
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申请号： US11994067申请日： 2006-06-14
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公开(公告)号： US08300835B2公开(公告)日： 2012-10-30
- 发明人: Yoshiki Ohta , Kensaku Obata
- 申请人： Yoshiki Ohta , Kensaku Obata
- 申请人地址： JP Tokyo
- 专利权人： Pioneer Corporation
- 当前专利权人： Pioneer Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Foley & Lardner LLP
- 优先权： JP2005-194413 20050701
- 国际申请： PCT/JP2006/311947 WO 20060614
- 国际公布： WO2007/004397 WO 20070111
- 主分类号： H01L29/00
- IPC分类号： H01L29/00
摘要：
An audio signal processing apparatus includes a cutout unit, a correlation calculating unit, a spectrum calculating unit, a coefficient calculating unit, and an assigning unit. The cutout unit cuts out audio signals of plural channels by a time frame. The correlation calculating unit calculates a correlation value between respective signals of the plural channels included in a predetermined time frame cut out by the cutout unit. The spectrum calculating unit calculates spectrum information indicative of spectral characteristics concerning a signal of a given channel cut out by the cutout unit. The coefficient calculating unit calculates a coefficient to be multiplied by the signal of the given channel, based on the correlation value and the spectrum information. The assigning unit multiplies the coefficient by the signal of the given channel and assigns the multiplied signal to channels other than the given channel.
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