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Syncing LFO's (was: Questions and comments about motm)

2001-03-03 by mark@indole.net

At 2:19 AM +0000 03/03/01, bruce@... wrote:
>
>>I want an LFO that I cab sync to an incoming clock, and several
>>people have told me to check out the 320 LFO.
>
>That being said, I think you need to be clear on what you want.
>The 320 (and folks, correct me if I am wrong here) can sync to a clock..
>But that is in terms of analog sync. Or in other words, the waveform
>will restart on the clock pulse, but that does not mean that the clock
>will drive the frequency of the waveform output by it. 
>If you are seeking to tempo lock your LFO's, say to be 2 measures of
>>whatever tempo you are outputting a 24 ppq sync for, the 320 won't do it.

That sounds right.  I do not think there is any way for an incoming clock
to drive the LFO rate in the analogue realm.  However, a couple of motm
users have said that the combination of the reset input and LED makes it
fairly easy to set by hand.

>If you want a great rock solid LFO with a lot of neat flexibility that
>will restart the wave on a pulse, you have the right item.

With its Shape and Rate VC inputs I'm also curious to see what it will do
patched back into itself :)

>Now I could be wrong and there might be some way to tempo lock them,
>but my brain can't get around it.  Of course the tempo locked LFO
>coming out of a Kenton CV box is great at doing that, so that would be
>a great addition to a 320, and could be used via the multiple to
>modulate the output for some really nice LFO effects.

I have a Kenton Pro-4 and it can sync the LFO's to MIDI clock.  Unless this
has been improved in a ROM upgrade, it does not divide down far enough for
me -- I would like LFO's that sync over several bars.  Several people have
told me to draw the LFO's in MIDI, but that's too much data.

>Hope that made sense...

Yes, it did :)

At 9:03 PM -0600 03/02/01, Microtonal wrote:
>
>The MOTM VCLFO can sync to incoming clock, but that means the waveform
>will be reset as well, including the sawtooth, sine or triangle output. 
>If you need contiguous waveforms from your synced LFO then the Encore
>UEG might work better. 

I've been reading the Encore UEG user's manual, and from what I can tell it
cannot generate synced LFO's.

>Another option, assuming the incoming clock is a gate rather
>than trigger signal, just feed it to an 820 VC Lag and control the rise
>and fall times.

That's an idea, although my clock source is usually a short pulse not a
gate.  Perhaps I could get a long enough gate out of the Dr. Click.

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