I think it would be almost impossible to come up with a watermark for audio that couldn't easily be blurred beyond recognition by fx, granular sampling, changing bitrate etc ...

I read an article somewhere citing that previous attempts at digital watermarking on audio have proved to be fairly easy to override - and that's when actually duplicating entire tracks, let alone mangling samples.

Matt Kane's Brain wrote:

On Sep 9, 2004, at 4:57, [EMAIL PROTECTED] wrote:

how on earth would they ever catch you?
surely it's virtually impossible right?


Since so many people have been asking this:

There is probably some watermarking algorithm that can be mixed with an audio signal. It would repeat a lot throughout a recording so it would even show up in a short sample. Potentially each watermark is unique so every time you buy a CD, its serial number is recorded with your name, and if unauthorized samples from that particular disc show up, you're in trouble!

this is all paranoid rambling, but I know such algorithms exist for audio.

--
matt kane's brain
http://hydrogenproject.com
[EMAIL PROTECTED]



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