Patent ID: 8670575
Filing Date: 2014-03-11
Classification: G10L,H04S

Abstract:
1. A method for processing an audio signal at an audio decoder, comprising: receiving a downmix signal, a residual signal, and an object information; extracting a background-object signal and a foreground-object signal from the downmix signal using the residual signal and the object information, wherein the object information includes information configured to recreate object signals from the downmix signal; receiving a mix information comprising a gain information for the background-object signal; generating a downmix processing information and a multi-channel processing information based on the object information and the mix information; and generating a processed downmix signal comprising a modified background-object signal and a modified foreground-object signal, wherein the modified background-object signal is obtained by modifying a gain of the background-object signal using the mix information, and wherein the modified foreground-object signal is obtained by modifying a gain of the foreground-object signal using the downmix processing information.