- 专利标题： Audio decoder, audio object encoder, method for decoding a multi-audio-object signal, multi-audio-object encoding method, and non-transitory computer-readable medium therefor
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申请号： US13451649申请日： 2012-04-20
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公开(公告)号： US08407060B2公开(公告)日： 2013-03-26
- 发明人: Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
- 申请人： Oliver Hellmuth , Johannes Hilpert , Leonid Terentiev , Cornelia Falch , Andreas Hoelzer , Juergen Herre
- 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： Keating & Bennett, LLP
- 主分类号： G10L19/00
- IPC分类号： G10L19/00
摘要：
An audio decoder for decoding a multi-audio-object signal having an audio signal of a first type and an audio signal of a second type encoded therein is described, the multi-audio-object signal having a downmix signal and side information, the side information having level information of the audio signals of the first and second types in a first predetermined time/frequency resolution, and a residual signal specifying residual level values in a second predetermined time/frequency resolution, the audio decoder having a processor for computing prediction coefficients based on the level information; and an up-mixer for up-mixing the downmix signal based on the prediction coefficients and the residual signal to obtain a first up-mix audio signal approximating the audio signal of the first type and/or a second up-mix audio signal approximating the audio signal of the second type.
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