Re: [LAU] Looking for Audio Watermarking Advice & Tools

Kevin, On 23/10/2011 17:13, Kevin Cosgrove 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) Of course, to work this assumes the original audio does not contain much material in that very range where you are placing the audio watermark. And of course this could possibly be filtered out. And I don't think it would be machine-readable (or maybe yes, with some super-funky fft analysis). I also wonder what would be the audio impact on the original sound (I think much dependent on the contents of source and watermark audio). Not that I would necessarily endorse this. Lorenzo. [1] http://arss.sourceforge.net/