Down-mixing compensation for audio watermarking
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United States of America Patent
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Dec 6, 2016
Grant Date -
Nov 5, 2015
app pub date -
Jul 15, 2015
filing date -
Jul 15, 2015
priority date (Note) -
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Abstract
Example methods, apparatus, systems and articles of manufacture to implement down-mixing compensation for audio watermarking are disclosed. Example watermark embedding methods disclosed herein include determining respective attenuation factors for a plurality of audio bands based on energy values associated with down-mixed audio samples corresponding to a first audio channel of a multi-channel audio signal and a second audio channel of the multi-channel audio signal. Disclosed example watermark embedding methods also include embedding a watermark in audio samples of the first audio channel based on the attenuation factors.
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