Patent ID: 8634946
Filing Date: 2014-01-21
Classification: G10L

Abstract:
1. An apparatus for synchronizing multichannel extension data with an audio signal, wherein the multichannel extension data are associated with reference audio signal fingerprint information comprising: a fingerprint calculator for calculating a fingerprint of the audiosignal comprising: a fingerprint extractor for extracting a sequence of reference audio signal fingerprints from the reference audio signal fingerprint information associated with the multichannel extension data; wherein the sequence of test audio signal fingerprints and the sequence of reference audio signal fingerprints are each a sequence of 1-bit values, wherein one bit each is associated with one block of audio samples, a fingerprint correlator for correlating the sequence of test audio signal fingerprints and the sequence of reference audio signal fingerprints, wherein the fingerprint correlator is implemented a compensator for reducing or eliminating a time offset between the multichannel extension data and the audio signal based on the correlation result.