APPARATUS FOR GENERATING A MULTI-CHANNEL AUDIO SIGNAL

摘要

An apparatus (100) for generating a multi-channel audio signal (142) based on an input audio signal (102) comprises a main signal upmixing means (110), a section selector (120), a section signal upmixing means (110) and a combiner (140). The main signal upmixing means (110) is configured to provide a main multi-channel audio signal (112) based on the input audio signal (102). The section selector (120) is configured to select or not select a section of the input audio signal (102) based on an analysis of the input audio signal (102). The selected section of the input audio signal (102), a processed selected section of the input audio signal (102) or a reference signal associated with the selected section of the input audio signal (102) is provided as section signal (122). The section signal upmixing means (130) is configured to provide a section upmix signal (132) based on the section signal (122), and the combiner (140) is configured to overlay the main multi-channel audio signal (112) and the section upmix signal (132) to obtain the multi-channel audio signal (142).