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Spectrogram

🔗Sarn Richard Ursell <thcdelta@ihug.co.nz>

5/19/2001 3:25:47 AM

Dear Tuners,

I have been giving some thought to a novel and interesting way to encrypt
information with the use of sound.

I feel that this would be an interesting and special way to capture thoughts
and data in to sound.

Supposse we take a jpeg image, and starting from the top left, zig-zag
downwards as you'd read the information in a book, take each pixel, and
encode its color into a 16 bit string of high and low tones, which could
represnet hue, and also another 16 bit set of tones which could represent
tint (grey scale)Â…

If four toness were used, we'd have a system which enabled us to see:

|4----3 BITS OF HUE INFORMATION----3---BITS OF TINE INFORMATION----3---4,

and this data could represent for us one pixels worth of information.

I wanted to encrypt pictures in this way, as a interesting form of
subliminal message, pictures of galaxys, dolphines, flowers, and so forth.

But, like so many of my ideas, I do not know where to turn to to find the
necessecary information to do this.

To the best of my knowledge, nobody has done this before, and it was the
sort of thing that John Lennon would have done.

Altho there are many other ways to turn graphical information to sound, and
I am becoming more and more interestedas to how these interelate,-the
computer is a most versitile tool.

Something like a picture of a face with reverb applied, phaser, delay,
chorus, and so on, -what effect would it have on the picture?

Other ideas are:

*Changing artwork to sonograms,
*Letting pixel tine and hue stand for a pulse of information, or perhaps two
pulses, one for tine, and one for hue, where these numerical information
containing pixels could be mapped directly to a tone.

--_Is anybody interested in helping me out here?

🔗Pitchcolor@aol.com

5/19/2001 10:25:41 AM

In a message dated 5/19/01 5:26:44 AM, thcdelta@ihug.co.nz writes:

<< To the best of my knowledge, nobody has done this before, and it was the

sort of thing that John Lennon would have done. >>

Metasynth includes a jpeg converter, though it's probably not programmable. I
have only seen the demo version that is downloadable for free.

Aaron