back to list

Cellular automata, aural chaos, and sonograms sound

🔗Sarn Richard Ursell <thcdelta@xxx.xxxx.xx.xxx>

3/27/1999 3:19:11 AM

Hello tuners.

Well, I have had a reply from a kindly gnetleman, who can do C++
programming, and will, hopefully, help me make "Mandelbrot Sonogram Noise".

Anyone interested, can have this sent through to them.

When, and if this does get acomplished, I would like anyone to consider the
effects of chaos on sound creation, in relation to sonograms.

I really like sonograms-they are very versitile, and so muchmore descriptive
than a displacement transverse waveform graph.

Has anyone hever heard of the game of life, by Jon Conway, aka "Cellular
automata"?

I thought how nice it would be to experiment with cellular aotomata's effect
on a sonogram of a sampled sound.

Cellular automata works like so:

1.Computer randomly colors in squares black 1, or white 0, at whatever
density required.
2.Computer scans a grid of squares one at a time, and counts the sourronding
8 squares.
3.Depending on the total of the sourronding squares, the black square is
kept black (if tally=3), is erased to white (if tally >3, or <3), or colored
in (if central square is white and tally=3).

This gives interesting behaviour.

Now, I have been experimenting with colors, and also hexagons in CA on
QBASIC, but I woundered if the actual sonogram surface could be gridded up,
and treated as a cellular automata game?

Perhaps one could "average out" the colors inside the grid, and, having done
so, decide just as to what the squares "identity" could be (i.e. B or W:1 or
0, or perhaps 1-->10 in color ect.).

In tallying the sourronding squares, the central sonogram square in the
sonogram CA grid, could be, perhaps, reversed, or turned anti-clockwise, or
clockwise by 90 degrees, or even, say, 117 degrees, and the overlapping
spaces, and boundrys averaged, or treated specially.
Perhaps even the aural information in the grid distorted, shifter, time
stretched, or just down/up sampled.

Now, often intuition can be very decieveing-we cannot, without doing this
experiment, accurately predict what the actual sonogram will end up sounding
like, at time=1, time=2, time=3, or time=3.7686, for that matter.

Am I correct?

Come to think of it, we could use hexes, penrose tileings, or even a
combination of things.

And experiment with the resolution of the grid, for that matter.

I am thinking, when I get time, that I would like to create a CD, using
music in combination with chaotic and applied mathematical experiments like
this.

Does this sound like I'm making a fool out of myself?

I don't know.......

Logic (at least this Universes logic), behaves unpredictibally, and
strangely, when subjected to complicated interactions.

I mean, whoever could have predicted the out come of the game "ants".

So, when I have finally finished putting arounf word of my exercise machine
concept "Omni-Directional-Variokinetics", to various muscle heads on the
net, I will start tallying forth, and begin this path to aural enlightenment.

The relationship between vision and hearing interests me immensely.

I promise you, should I ever become rich with my patent, (the machine), I
will shout all of you non12ers new software, computer upgrades, and 3
microtuneable keyboards each.

Hold me to that.

Finally, I would like to divide up mathematical formulae in equal divisions,
perhaps even logarithmic divisions, and to use these as a temperament.

I have some mathematical constants from the internet that I have kept,
begging for use in composition.

Any ideas?