This was easy enough and the result is at
http://sdfphd.net/creativepact2010/dsp.js-0acac23_sdfHack/examples/SineSoundingSpinningShapes.html
(it will only work in the 'nightly build' of firefox from http://nightly.mozilla.org/ -> I'm running from firefox-4.0b5pre.en-US.mac.dmg )
However, the audio visual synchrony is . . . just not there! The sound is programmed to change when the shape changes it's number of sides, how ever the sound remains unchaged until after the shape has changed several times. By the time the audio has changed three times, the shape has been through it's entire sequence more than twice.
Tomorrow I will try again without using DSP.js to see iff the a/v synch can be improved. The next day I will look at some more examples to see how people who know what they are doing are doing things : )
in other news, I was in the studio today going through some patches from the past year and made this video with an edit of one of them:
this started out as a model of a gramophone: writing and reading audio data to/from a spiral path on a 2D surface.
here the surface has been covered with noise and the spiral paths reading is are being modified far beyond the original specifications.
The basis of this patch was put together in April 2010, subsequent patches have taken up similar ideas. The control sequences running to make this video were put in today (7 Sept 2010).
in the image: grey scale noise = the surface being read; red and green = pixels being read and converted to sound; blue = phase scope type analysis of the stereo outjavascript:void(0)put.
(as usual, sound and colour have been altered considerably by the host's compression)
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