发明名称 |
AUDIO ENCODER, AUDIO DECODER, METHODS AND COMPUTER PROGRAM USING JOINTLY ENCODED RESIDUAL SIGNALS |
摘要 |
An audio decoder for providing at least four bandwidth-extended channel signals on the basis of an encoded representation is configured to provide a first downmix signal and a second downmix signal on the basis of a jointly encoded representation of the first downmix signal and the second downmix signal using a multi-channel decoding. The audio decoder is configured to provide at least a first audio channel signal and a second audio channel signal on the basis of the first downmix signal using a multi-channel decoding. The audio decoder is configured to provide at least a third audio channel signal and a fourth audio channel signal on the basis of the second downmix signal using a multi-channel decoding. The audio decoder is configured to perform a multi-channel bandwidth extension on the basis of the first audio channel signal and the third audio channel signal, to obtain a first bandwidth-extended channel signal and a third bandwidth-extended channel signal. The audio decoder is configured to perform a multi-channel bandwidth extension on the basis of the second audio channel signal and the fourth audio channel signal, to obtain a second bandwidth extended channel signal and a fourth bandwidth extended channel signal. An audio encoder uses a related concept. |
申请公布号 |
EP3022735(A1) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20140739141 |
申请日期 |
2014.07.11 |
申请人 |
FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
DICK, SASCHA;ERTEL, CHRISTIAN;HELMRICH, CHRISTIAN;HILPERT, JOHANNES;HÖLZER, ANDREAS;KUNTZ, ACHIM |
分类号 |
G10L19/008;G10L19/00;G10L21/038 |
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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