Abstract: 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.
April 20, 2012
August 23, 2012
Fraunhofer-Gesellschaft zur Foerderung der angewanten Forschung e.V
Oliver HELLMUTH, Johannes HILPERT, Leonid TERENTIEV, Cornelia FALCH, Andreas HOELZER, Juergen HERRE