发明名称 |
APPARATUS AND METHOD FOR MULTICHANNEL DIRECT-AMBIENT DECOMPOSTION FOR AUDIO SIGNAL PROCESSING |
摘要 |
An apparatus for generating one or more audio output channel signals depending on two or more audio input channel signals is provided. Each of the two or more audio input channel signals comprises direct signal portions and ambient signal portions. The apparatus comprises a filter determination unit for determining a filter by estimating first power spectral density information and by estimating second power spectral density information. Moreover, the apparatus comprises a signal processor for generating the one or more audio output channel signals by applying the filter on the two or more audio input channel signals. The first power spectral density information indicates power spectral density information on the two or more audio input channel signals, and the second power spectral density information indicates power spectral density information on the ambient signal portions of the two or more audio input channel signals. |
申请公布号 |
US2015380002(A1) |
申请公布日期 |
2015.12.31 |
申请号 |
US201514846660 |
申请日期 |
2015.09.04 |
申请人 |
Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. |
发明人 |
UHLE Christian;HABETS Emanuel;GAMPP Patrick;KRATZ Michael |
分类号 |
G10L19/008;H04S3/02;G10L21/028;H04S3/00;G10L25/21;G10L25/18 |
主分类号 |
G10L19/008 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus for generating one or more audio output channel signals depending on two or more audio input channel signals, wherein each of the two or more audio input channel signals comprises direct signal portions and ambient signal portions, wherein the apparatus comprises:
a filter determination unit for determining a filter by estimating first power spectral density information and by estimating second power spectral density information, and a signal processor for generating the one or more audio output channel signals by applying the filter on the two or more audio input channel signals, wherein the first power spectral density information indicates power spectral density information on the two or more audio input channel signals, and the second power spectral density information indicates power spectral density information on the ambient signal portions of the two or more audio input channel signals, or wherein the first power spectral density information indicates the power spectral density information on the two or more audio input channel signals, and the second power spectral density information indicates power spectral density information on the direct signal portions of the two or more audio input channel signals, or wherein the first power spectral density information indicates the power spectral density information on the direct signal portions of the two or more audio input channel signals, and the second power spectral density information indicates the power spectral density information on the ambient signal portions of the two or more audio input channel signals. |
地址 |
Munich DE |