发明名称 |
Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal |
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 perform a weighted combination of a downmix signal, a decorrelated signal and a residual signal, to obtain one of the output audio signals. The multi-channel audio decoder is configured to determine a weight describing a contribution of the decorrelated signal in the weighted combination in dependence on the residual signal. A multi-channel audio encoder for providing an encoded representation of a multi-channel audio signal is configured to obtain a downmix signal on the basis of the multi-channel audio signal, to provide parameters describing dependencies between the channels of the multi-channel audio signal, and to provide a residual signal. The multi-channel audio encoder is configured to vary an amount of residual signal included into the encoded representation in dependence on the multi-channel audio signal. |
申请公布号 |
EP2830053(A1) |
申请公布日期 |
2015.01.28 |
申请号 |
EP20130189309 |
申请日期 |
2013.10.18 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
DICK, SASCHA;HELMRICH, CHRISTIAN;HILPERT, JOHANNES;HÖLZER, ANDREAS |
分类号 |
G10L19/008;G10L19/20 |
主分类号 |
G10L19/008 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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