- 专利标题： Downmixer, audio encoder, method and computer program applying a phase value to a magnitude value
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申请号： US17061993申请日： 2020-10-02
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公开(公告)号： US11418904B2公开(公告)日： 2022-08-16
- 发明人: Aleksandr Karapetyan , Felix Wolf , Jan Plogsties
- 申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 申请人地址： DE Munich
- 专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- 当前专利权人地址： DE Munich
- 代理机构： Perkins Coie LLP
- 代理商 Michael A. Glenn
- 优先权： EP18166174 20180406
- 主分类号： H04S7/00
- IPC分类号： H04S7/00 ; H04R5/04
摘要：
A downmixer for providing a downmix signal on the basis of a plurality of input signals is configured to determine a magnitude value of a spectral domain value of the downmix signal on the basis of a loudness information of the input signals. The downmixer is configured to determine a phase value of the spectral domain value of the downmix signal and the downmixer is configured to apply the phase value in order to obtain a complex valued number representation of the spectral domain value of the downmix signal on the basis of the magnitude value of the spectral domain value of the downmix signal. An audio encoder uses such a downmixer. A method for downmixing and a computer program are also described.
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