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AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsSebastian SCHARRER, Wolfgang FIESEL, Joerg PICKEL, Matthias NEUSINGER
Estimating the term…
For synchronizing multichannel extension data with an audio signal, wherein the audio signal includes block division information and the multichannel extension data include reference audio signal fingerprint information, the block division information in the audio signal is detected by means of a block detector. Thereupon, block division of the audio signal is performed by a fingerprint calculator according to the block division information in order to obtain a sequence of test audio signal fingerprints. In addition to that, a sequence of reference audio signal fingerprints is extracted from the reference audio signal fingerprint information of the multichannel extension data. Both sequences of fingerprints are correlated in order to obtain a correlation result, by which a compensator is controlled in order to reduce or eliminate a time offset between the multichannel extension data and the audio signal.
An apparatus for processing an audio signal, comprising:
The apparatus according to claim 4, wherein the block division information embedder is implemented to embed, as block division information, a watermark into the audio signal.
The apparatus according to claim 5, wherein the fingerprint calculator is implemented to perform a block division of the audio signal, and wherein the block division information embedder is implemented to embed a watermark into this block, which is identical to a watermark embedded in a previous or subsequent block.
A method for processing an audio signal, comprising:
A tangible computer-readable medium including a computer program comprising a program code for performing, when the computer program is performed on a computer, a method for processing an audio signal, the method comprising:
Dependencies are inferred from the claim text.