- 专利标题: Multi-channel audio decoder, multi-channel audio encoder, methods, computer program and encoded audio representation using a decorrelation of rendered audio signals
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申请号: US15004548申请日: 2016-01-22
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公开(公告)号: US10431227B2公开(公告)日: 2019-10-01
- 发明人: Sascha Disch , Harald Fuchs , Oliver Hellmuth , Juergen Herre , Adrian Murtaza , Jouni Paulus , Falko Ridderbusch , Leon Terentiv
- 申请人: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 申请人地址: DE Munich
- 专利权人: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- 当前专利权人: Fraunhofer-Gesellschaft zur Foerderung 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: EP13177374 20130722; EP13189345 20131018; EP14161611 20140325
- 主分类号: H04R5/00
- IPC分类号: H04R5/00 ; G10L19/008 ; H04S3/00 ; H04S3/02
摘要:
A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multi-channel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.