OPTO-MECHANICAL ENVELOPE FILTER
Optoelectronic panning oscillator (2 channel stereo with “fixed” waveform).
In preparation for a performance that themes around the process of Holography. I have been working on a new device that can take a stereo or mono-split audio signal and create two independent output channels with waveforms using gain attenuation.
All this is accomplished using re-purposed laser pointers and a PC fan and couple of photo cells. Using CV to control fan speed=frequency of channel oscillation. Waveform is created by the shape of the fan blade. In theory, the angle of the fan this can adjusted slightly producing a shift in the waveform. The motor and lasers are running on a 5v circuit.
The result is a left to right or right to left stereo ping pong panning effect.