Patent ID: 8494667
Filing Date: 2013-07-23
Classification: G10L

Abstract:
1. A method for decoding an audio signal, the method comprising: receiving spatial information and a downmix signal from the audio signal, the downmix signal including a plurality of frames; extracting a downmix gain and a low frequency enhancement (LFE) gain from the spatial information; modifying an energy level of the frames in the downmix signal by using the downmix gain; generating a multi-channel audio signal by applying the spatial information to the modified downmix signal, the multi-channel audio signal including a low frequency enhancement (LFE) channel signal; and modifying the multi-channel audio signal by applying the LFE gain to the LFE channel signal, wherein the downmix gain is applied to the downmix signal before the LFE gain is applied to the LFE channel signal.