[sdiy] Techniques for Multiplying MIDI Clock frequency?

Spiros Makris spirosmakris92 at gmail.com
Fri Dec 17 08:03:29 CET 2021

Hello List,
I want to experiment with polymetric structures and create "non standard"
subdivisions within the standard ones supported by MIDI. I have only worked
with the 24ppq, using the timing messages to directly drive the sequencers.
I would like a way to multiply the clock frequency in order to increase
resolution, let's say by 10 or maybe 100 times, if that's feasible (I think
it is?).
I think this is achieved by a PLL. I understand the basic concepts of it
and have used in the analog domain, but never did it in a digital only
format. Furthermore, I suppose having an array of hardware peripherals,
such as timers and interrupts, and a fairly fast processor (teensy 3.2)
could open up other approaches that don't follow the standard PLL
This has been on my mind for some time, but I don't really know where to
start. Any advice, or resources are greatly appreciated

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