[sdiy] Tools for testing MIDI

[Andrei Kudryavtsev]

I'd look for the jitter under MIDI protocol loaded conditions. Generate the
traffic to your device and see how it responds in corner cases under load.
Especially if you're working something that claims reliable sync. :)

On Wed, May 20, 2026 at 1:53 PM Tom Wiltshire <tom at electricdruid.net> wrote:

> Is it *only* sending MIDI clock?
>
> If so, it's a simple job and I'd be surprised if it's even breaking a
> sweat. As others have said, it's the receiving side that more commonly has
> the problems, since it's having to parse everything coming in in a timely
> manner. With Clock in particular, that's crucial, although the MIDI
> designers had already thought of this and made it easy.
>
> If it's *not* only sending MIDI clock, get it sending *everything* else it
> can possibly send all at once, and then make it pass through a massive
> Sysex data dump from somewhere else too. If it survives that, it's better
> than 95% of the MIDI stuff that's out there!
>
> MIDIOX and similar tools are great fro making sure that the bytes you're
> getting are the bytes you think you should be getting. I've had to use it
> for debugging and that level of detail is vital.
>
> > On 20 May 2026, at 21:20, Chromatest J. Pantsmaker via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >
> > Well, that's a great question.  What *should* I be looking for?  I
> assumed jitter, but anything else?
> >
> >
> >
> > On Wednesday, May 20th, 2026 at 12:02 PM, grant
> musictechnologiesgroup.com <grant at musictechnologiesgroup.com> wrote:
> >
> >> For that?  Probably a good oscilloscope and/or logic analyzer.  What are
> >> you looking for?  Jitter?
> >>
> >> GB
> >>
> >> On 5/20/2026 9:27 AM, Chromatest J. Pantsmaker via Synth-diy wrote:
> >>> Hey all,
> >>>
> >>> I'm finally getting a new project completed.  Basically, it's a MIDI
> clock generator running on an ESP32-C6.  It appears to be functioning
> properly, but I want to stress test the MIDI clock output.
> >>>
> >>> What tools are people using to test MIDI?
> >>>
> >>>
> >>>
> >>>
> >>>
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-- 
Andrei Kudryavtsev,
Deftaudio www.deftaudio.com
Manufacturing Luma-1 Drum Machine
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