- Patent Title: 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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Application No.: US15004548Application Date: 2016-01-22
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Publication No.: US10431227B2Publication Date: 2019-10-01
- Inventor: Sascha Disch , Harald Fuchs , Oliver Hellmuth , Juergen Herre , Adrian Murtaza , Jouni Paulus , Falko Ridderbusch , Leon Terentiv
- Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: EP13177374 20130722; EP13189345 20131018; EP14161611 20140325
- Main IPC: H04R5/00
- IPC: H04R5/00 ; G10L19/008 ; H04S3/00 ; H04S3/02

Abstract:
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.
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