Metadata for Audio
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Paper CD10-1
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Watermarking and Copy Protection by Information
Hiding in Soundtracks
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Tim Jackson, Keith Yates,
Francis Li
Manchester Metropolitan University,
Manchester, UK
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| In this paper digital audio watermarking techniques are
reviewed and categorized. Applications of watermarking
schemes are discussed, and their capabilities and
limitations clarified in the context of audio copyright
management and copy protection. Traditional watermarking
schemes embed hidden signatures in soundtracks and are found to be effective in ownership authentication
and copyright management. Nevertheless,
they do not prevent unauthorized copying unless dedicated
watermark detectors are added to the recording
devices. Purpose-chosen hidden signals are known to
interfere with some recording devices, for example,
magnetic tape recorders, offering a potential solution to
copy protection. It is therefore reasonable to postulate
that watermarking techniques could be extended to the
general audio copy protection without the resort to
dedicated detectors. |
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