20120213376 | 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 - 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. | 08-23-2012 |