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2. Audio watermark - Wikipedia

   en.wikipedia.org/wiki/Audio_watermark

   An audio watermark is a unique electronic identifier embedded in an audio signal, typically used to identify ownership of copyright. It is similar to a watermark on a photograph. Digital watermarking is the process of embedding information into a signal (e.g. audio, video or pictures) in a way that is difficult to remove. If the signal is ...

3. Digital watermarking - Wikipedia

   en.wikipedia.org/wiki/Digital_watermarking

   A digital watermark is called semi-fragile if it resists benign transformations, but fails detection after malignant transformations. Semi-fragile watermarks commonly are used to detect malignant transformations. A digital watermark is called robust if it resists a designated class of transformations. Robust watermarks may be used in copy ...

4. Cinavia - Wikipedia

   en.wikipedia.org/wiki/Cinavia

   The software package contains a detailed description of the method and embedding parameters used in creating the DVD Audio or SDMI (Secure Digital Music Initiative) watermark, which was created by Verance Inc and was the earlier version of the Cinavia watermarking technology.

5. Digital rights management - Wikipedia

   en.wikipedia.org/wiki/Digital_rights_management

   Some audio/video editing programs may distort, delete, or otherwise interfere with watermarks. Signal/modulator-carrier chromatography may separate watermarks from the recording or detect them as glitches. Additionally, comparison of two separately obtained copies of audio using basic algorithms can reveal watermarks. [citation needed]

6. Secure Digital Music Initiative - Wikipedia

   en.wikipedia.org/wiki/Secure_Digital_Music...

   The letter invited hackers, cryptologists and others to detect and remove the watermark from some example pieces of music. Several groups became involved, including a group led by Ed Felten. Felten's group claimed to have cracked the scheme and successfully removed the watermark according to the automated judging software supplied by the SDMI.

7. Automatic content recognition - Wikipedia

   en.wikipedia.org/wiki/Automatic_content_recognition

   Automatic content recognition (ACR) is a technology used to identify content played on a media device or presented within a media file.Devices with ACR can allow for the collection of content consumption information automatically at the screen or speaker level itself, without any user-based input or search efforts.

8. Some Americans' Social Security checks may have been ... - AOL

   www.aol.com/finance/americans-social-security...

   Around 68.5 million people receive Social Security benefits, which act as a reliable source of steady income for disabled and retired workers.. But what if those checks suddenly stopped appearing ...

9. Audio watermark detection - Wikipedia

   en.wikipedia.org/?title=Audio_watermark...

   Language links are at the top of the page across from the title.