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Subject: [motm] RE: midi LFO module

From: media.nai@...
Date: 2003-02-03

There are numerous gizmos that can extract a hardware clock from MIDI.

While the 320 does have a sync input which is very useful, it's not
the same as being able to sync the rate to an incoming clock -- the
sync input merely resets the waveform.

You can produce an LFO synced to a clock if you divide it down and
then shape it with a lag processor. This works if the divider
produces a square wave or preserves the duty cycle of its input.
However you have to re-adjust the lag processor if the speed of the
clock changes.

Other than that, it's impossible to sync an LFO to a clock using
analogue. I saw a mock-up of the VC pulse divider that had a "ramp"
output, and I suggested to Encore that they include a clock input for
the digital oscillators in the frequency shifter.

The ability to produce LFO's synced to MIDI clock is a very nice
feature for a MIDI-->CV converter, but I would like to see a module
that can produce dedicated waveforms synchronized to a hardware clock.