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> Have you ever signed a file with GNUPG? That's a watermark. Have <br>> you ever used an SHA or MD5 signature of a file, and verified those <br>> signatures with GNUPG?<br><br>What is the relationship? <br><br>These are not watermarks. The above are methods to prove or disprove <br>that any given person was the source of a given message. A watermark is <br>a means of marking a resource such that it may not be used by anybody<br>else without degradation of quality.<br><br>Linux does not need an audio watermark, the whole point of linux is about <br>the benefits of sharing. <br><br>If you want to have a way of restricting distribution of audio then perhaps <br>go fish in some other seas.<br><br>Regards, nick<br><br>"we have to make sure the old choice [Windows] doesn't disappear”.<br>Jim Wong, president of IT products, Acer<br><br><br><div>> To: nickycopeland@hotmail.com<br>> CC: linux-audio-user@lists.linuxaudio.org<br>> Subject: Re: [LAU] Looking for Audio Watermarking Advice & Tools <br>> Date: Sun, 23 Oct 2011 12:53:34 -0700<br>> From: kevinc@cosgroves.us<br>> <br>> <br>> On 23 October 2011 at 21:44, Nick Copeland <nickycopeland@hotmail.com> wrote:<br>> <br>> > > I'm looking for a Linux solution to watermarking audio<br>> > <br>> > Are you looking at an open operating system to help you close your=20<br>> > mind? Forget the technical issues involved=2C I personally think you are=20<br>> > talking to the wrong community: watermarking is a means of restricting=20<br>> > distribution of visual material.=20<br>> > <br>> > Linux is not about restricting distribution of anything.<br>> > <br>> > Perhaps you should raise these questions on one of the Apple mailing=20<br>> > lists where you will meet equally paranoid minds. Bringing these issues<br>> > up on this list is out of line.<br>> <br>> Have you ever signed a file with GNUPG? That's a watermark. Have <br>> you ever used an SHA or MD5 signature of a file, and verified those <br>> signatures with GNUPG?<br>> <br>> Rocks, hammers, knives and guns can all be used for good or bad. So <br>> could watermarking. I'm only after the tool, and I'll return to <br>> being on topic now.<br>> <br>> Thanks....<br>> <br>> --<br>> Kevin<br>> <br>> <br></div>                                            </div></body>
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