On Mon, Oct 24, 2011 at 4:46 AM, Lorenzo Sutton <lsutton@email-addr-hidden> wrote:
> I wonder if anyone ever thought of/done (something like) this:
>
> - Paint something with your favourite graphics editor, export to bitmap
> - Use a tool like ARSS [1] to resynthesise the bitmap only in a
> near-to-inaudible fequency range (say 16000 ~ 22000 Hz)
> - mix it with the original audio (so that the audio watermark is very low
> but strong enough to be visible in a spectrogram)
>
http://www.controlgeek.net/blog/2010/12/1/spectrogram-birthday.html
While they didn't use the inaudible spectrum, that was more because
they didn't need to.
Seablade
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Received on Mon Oct 24 16:15:05 2011
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