发明授权
US08433582B2 Method and apparatus for estimating high-band energy in a bandwidth extension system
有权
用于估计带宽扩展系统中的高带能量的方法和装置
- 专利标题： Method and apparatus for estimating high-band energy in a bandwidth extension system
- 专利标题（中）： 用于估计带宽扩展系统中的高带能量的方法和装置
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申请号： US12024620申请日： 2008-02-01
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公开(公告)号： US08433582B2公开(公告)日： 2013-04-30
- 发明人: Tenkasi V. Ramabadran , Mark A. Jasiuk
- 申请人： Tenkasi V. Ramabadran , Mark A. Jasiuk
- 申请人地址： US IL Libertyville
- 专利权人： Motorola Mobility LLC
- 当前专利权人： Motorola Mobility LLC
- 当前专利权人地址： US IL Libertyville
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
A method (100) includes receiving (101) an input digital audio signal comprising a narrow-band signal. The input digital audio signal is processed (102) to generate a processed digital audio signal. A high-band energy level corresponding to the input digital audio signal is estimated (103) based on a transition-band of the processed digital audio signal within a predetermined upper frequency range of a narrow-band bandwidth. A high-band digital audio signal is generated (104) based on the high-band energy level and an estimated high-band spectrum corresponding to the high-band energy level.