[sdiy] Tap tempo & pulse/clock ideas needed

[Roman]

If I understand your need the right way, here's how I'd fo it:
first tap button hit fires a counter, every next one rewrites
counted value to some register and resets the counter. Then
this value is divided by any desired "musial multiple" and
fed to another counter, that triggers pulse out, when this 2nd
counter has counted down to 0 (and reloaded of course).

Valid pulse output right after 2 hits of tap button.
Simple job to do in a micro (can I say PIC?), not so simple
in discrete logic.
And with the micro it would be no problem to output triggers
and MIDI messages at the same time

Roman

----- Original Message -----
From: "Thomas Dunker" <dunker at invalid.ed.ntnu.no>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, March 21, 2004 10:49 PM
Subject: [sdiy] Tap tempo & pulse/clock ideas needed


>
>  Hi!
>
>  I am looking for a clock (trigger pulse) generator with a tap tempo
> function. I imagine  that I would want this clock to be able to output
> "musical" multiples of the tapped beat frequency for direct triggering of
a
> sequencer, ADSR events etc. I also have the external triggering of my Korg
> Polysix's arpeggiator in mind here.
>  How big a deal is it to build something like this?
>  Any kits or commercial products I should check out? What old or
> new MIDI sequencers have tap tempo AND trig pulse output? I don't have any
> kind of sequencer (yet) but if possible it would be nice to have one that
> could sync MIDI and non-MIDI (the to-be modular synth, vintage organ drum
> computers, the Polysix arp etc.) instruments.
>
>  Also, I think I'll be needing a simple "pulse processor", for jobs like
> creating trigger pulses from say, a square wave coming from an LFO.
>
>  Any ideas???
>
> TIA,
>
> Thomas Dunker