[sdiy] While we're posting oscillator pics...

[Mike Pepper]

Gordon,

Very inventive idea!  Maybe the cardboard could be hung on a pendulum
and obscure the path of an LED and phototransistor.  Swing the
pendulum and you have a sequencer whose tempo and note stack slowly
dies out.  Maybe shine the LED through a glass of very diluted milk
for diffusion.  That would be an interesting way to end a song.  I
like mechanical things introduced into the creative process.  You just
rang the bell.  Thanks!


On Sun, Jan 16, 2011 at 5:16 PM, Gordon JC Pearce <gordonjcp at gjcp.net>
wrote:
>
> ... how about some fun with sillyscopes?
>
> http://www.youtube.com/watch?v=48zBqQwxFNI
>
> Here I'm using a 'scope with a cardboard mask over the tube and a light
> detector to generate an arbitrary waveform. This is then fed into the
> VCF Cutoff CV pin on my Polysix as it plays a simple arpeggio.
>
> Gordon MM0YEQ

Nice work. Dpahne Oram used somethign similar in her 'Oramics' system,
though I think that was more likea flying spot scanner, to convert a drawn
waveform into sound, (the whole 'oramics' concept was to allow you to
'paint' control farmes onto 35mm film, and the playback was a form of
scanner:

http://www.soundonsound.com/sos/feb09/articles/oramics.htm

||\/||ike