发明授权
- 专利标题： Optimized low-bit rate parametric coding/decoding
- 专利标题（中）： 优化的低比特率参数编码/解码
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申请号： US13502316申请日： 2010-10-15
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公开(公告)号： US09167367B2公开(公告)日： 2015-10-20
- 发明人: Thi Minh Nguyet Hoang , Stephane Ragot , Balazs Kovesi
- 申请人： Thi Minh Nguyet Hoang , Stephane Ragot , Balazs Kovesi
- 申请人地址： FR Paris
- 专利权人： FRANCE TELECOM
- 当前专利权人： FRANCE TELECOM
- 当前专利权人地址： FR Paris
- 代理机构： Westman, Champlin & Koehler, P.A.
- 代理商 David D. Brush
- 优先权： FR0957254 20091015
- 国际申请： PCT/FR2010/052192 WO 20101015
- 国际公布： WO2011/045548 WO 20110421
- 主分类号： H04R5/00
- IPC分类号： H04R5/00 ; H04S3/00 ; G10L19/008 ; G10L19/16
摘要：
A parametric coding method and apparatus are provided for coding a multichannel digital audio signal. The method includes a coding step for coding a signal from a channel reduction matrixing of the multichannel signal. The coding method also includes: obtaining, for each frame of predetermined length, spatial information parameters of the multichannel signal; dividing the spatial information parameters into a plurality of blocks of parameters; selecting a block of parameters as a function of the index of the current frame; and coding the block of parameters selected for the current frame.
公开/授权文献
- US20120207311A1 OPTIMIZED LOW-BIT RATE PARAMETRIC CODING/DECODING 公开/授权日：2012-08-16
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