[sdiy] string machine technology?

[jhaible at debitel.net]

> What about the waveforms? I had an Arp Omni 2 and I remember it had a swith 
> for "hollow waveform on/off", which sounded like that it switched between a 
> sawtooth and a squarewave. Does anybody have experience with any other 
> string machines?

I vaguely remember that the _choir_ sounds in the Roland VP330 has some 
nonlinear (expo-shaped?) ramps, which then go into the formant filters. So 
maybe (?) the Roland Strings build on a similar waveform.

Crumar performer uses staircase "Saw" waveforms.

> What ways are there to get sawtooth waveforms on string machines?

The Korg PE-1000 has what I'd consider the most promising concept: One 
oscillator per key; but these oscillators are not much more than a thyristor 
and a capacitor.

JH.


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