发明授权
US09318127B2 Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
有权
用于音频信号的基于相位声码器的带宽扩展方法中的幅度响应和时间对准的装置和方法
- 专利标题： Device and method for improved magnitude response and temporal alignment in a phase vocoder based bandwidth extension method for audio signals
- 专利标题（中）： 用于音频信号的基于相位声码器的带宽扩展方法中的幅度响应和时间对准的装置和方法
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申请号： US13604313申请日： 2012-09-05
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公开(公告)号： US09318127B2公开(公告)日： 2016-04-19
- 发明人: Sascha Disch , Frederik Nagel , Stephan Wilde , Lars Villemoes , Per Ekstrand
- 申请人： Sascha Disch , Frederik Nagel , Stephan Wilde , Lars Villemoes , Per Ekstrand
- 申请人地址： DE Munich NL Amsterdam Zuid-Oost
- 专利权人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.,Dolby International AB
- 当前专利权人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.,Dolby International AB
- 当前专利权人地址： DE Munich NL Amsterdam Zuid-Oost
- 代理机构： Perkins Coie LLP
- 代理商 Michael A. Glenn
- 主分类号： G10L21/038
- IPC分类号： G10L21/038
摘要：
An apparatus for generating a bandwidth extended audio signal from an input signal, includes a patch generator for generating one or more patch signals from the input signal, wherein the patch generator is configured for performing a time stretching of subband signals from an analysis filterbank, and wherein the patch generator further includes a phase adjuster for adjusting phases of the subband signals using a filterbank-channel dependent phase correction.
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