LFO Waveforms

[Tony Allgood]

>What other LFOs are needed and why?

Good question. I like to able to VC-morph one waveform into another. The
MOTM VC-LFO does this, and I've built a version for myself that uses Don
Tillman's method of making saws into triangles into reverse saws. This
is nice.

Korg's MS-20's LFO does this as well, but it is not voltage
controllable.

Syncing one LFO to another by hard sync is great... and thats something
I have only just started to explore very recently. Er, actually from
yesterday when I had actually built two LFOs with sync.

Many other waveforms could be made with a analogue or digital sequencer.
A simple analogue sequencer with sliders enables you to draw the
waveform; Arbitary Waveform Generator by Buchla for example. But Cubase
and other midi sequencers can do this, although you would be hard
pressed to get them to clock at very fast speeds. If you do have Cubase
check out the IPS module... odd, interesting, yes! Useful? The Jury is
still out on that. Although I did do a track where the lead hook is the
output of the IPS. The Atari version is perfectly good enough for
generating amazingly complex patterns and modulations.

And then there are Walsh functions... source of random changes and the
rest. Amazing beast, but hard to tame. I really must get around to
putting my walsh VCO in a box with the rest of the modular. Then I might
actually be able to get some samples done.

Regards,

Tony Allgood  Penrith, Cumbria, UK

Modular synth circuits, TB303 clone and Filter Rack

http://www.techrepairs.freeserve.co.uk/projects.htm