DEVICE AND METHOD FOR SYNCHRONIZING MULTI-CHANNEL EXPANSION DATA WITH AN AUDIO SIGNAL AND FOR PROCESSING SAID AUDIO SIGNAL

摘要

In order to synchronize multi-channel expansion data (132) with an audio signal (114), wherein the audio signal comprises a piece of block allocation information and the multi-channel expansion data has reference audio signal fingerprint information, the block allocation information (302) is detected in the audio signal (302) by means of a block detector (300). Subsequently a block allocation of the audio signal is carried out according to the block allocation information (302) by means of a fingerprint calculator (304) in order to obtain a sequence of test audio signal fingerprints (306). Furthermore, a sequence of reference audio signal fingerprints is extracted from the reference audio signal fingerprint information of the multi-channel expansion data (132). The two sequences of fingerprints are correlated in order to obtain a correlation result, by means of which a compensator (316) is activated in order to reduce or eliminate a time offset between the multi-channel expansion data (132) and the audio signal (114).