> To: nickycopeland@hotmail.com
> Subject: Re: [LAU] Looking for Audio Watermarking Advice & Tools
> Date: Sun, 23 Oct 2011 13:32:18 -0700
> From: kevinc@cosgroves.us
>
>
> On 23 October 2011 at 22:10, Nick Copeland <nickycopeland@hotmail.com> wrote:
>
> > > Have you ever signed a file with GNUPG? That's a watermark.
> > > Have you ever used an SHA or MD5 signature of a file, and
> > > verified those signatures with GNUPG?
> >
> > What is the relationship?
> >
> > These are not watermarks. The above are methods to prove or
> > disprove that any given person was the source of a given
> > message.
>
> That's precisely the intent of what I want to do with an audio file
> watermark, to prove that at least at one point I was the source of
> the file.
>
> > A watermark is a means of marking a resource such that it may
> > not be used by anybody else without degradation of quality.
>
> We have in mind different definitions of "watermark". Certainly, I
> could be wrong in my terminology.
>
> This definition http://www.thefreedictionary.com/watermark doesn't help.
>
> This definition http://www.webopedia.com/TERM/D/digital_watermark.html
> leans more in the direction of what you're saying in the 3rd sentence
> of the first paragraph. But, the first sentence of that paragraph is
> much like what I would want. I'm only after the identification of the
> material, not the restriction of the material. If I wanted
> restriction, then I would have asked for advise on how to do that
> instead.
>
> My end goal is to insert content into an audio file to identify me as
> the creator and identify which parts of the Creative Commons license
> apply to its release. What term should I use to name that?
>
> Thanks....
>
> --
> Kevin
>
>