发明名称 |
Apparatus and method for generating a level parameter and apparatus and method for generating a multi-channel representation |
摘要 |
A parameter representation of a multi-channel signal having several original channels includes a parameter set, which, when used together with at least one down-mix channel allows a multi-channel reconstruction. An additional level parameter is calculated such that an energy of the at least one downmix channel weighted by the level parameter is equal to a sum of energies of the original channels. The additional level parameter is transmitted to a multi-channel reconstructor together with the parameter set or together with a down-mix channel. An apparatus for generating a multi-channel representation uses the level parameter to correct the energy of the at least one transmitted down-mix channel before entering the down-mix signal into an up-mixer or within the up-mixing process.
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申请公布号 |
US2007002971(A1) |
申请公布日期 |
2007.01.04 |
申请号 |
US20060517900 |
申请日期 |
2006.09.08 |
申请人 |
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发明人 |
PURNHAGEN HEIKO;VILLEMOES LARS;ENGDEGARD JONAS;ROEDEN JONAS;KJOERLING KRISTOFER |
分类号 |
H04L27/00;G10L19/00;G10L19/008 |
主分类号 |
H04L27/00 |
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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