[sdiy] Tools for testing MIDI

[Florian Anwander]

You are right, I shoud have written "merge" or "soft thru".

Am 22.05.26 um 00:04 schrieb brianw:
> I assume that you're referring to MIDI merge.
>
> MIDI through is purely electrical, with no latency. The caveat is that MIDI thru does not merge MIDI out with MIDI in unless something different is designed.
>
> It might be worth pointing out that MIDI Clock is still legal even in the middle of a long SysEx data dump. MIDI System Real Time messages like MIDI Clock can occur *anywhere* - so a MIDI merge function can still get accurate clock with average jitter of 160 microseconds (0.16 milliseconds) even when passing through.
>
> That said, there are plenty of real MIDI products on the market that drop the ball. I just hope that modern designs can get all of these little details right.
>
> Brian
>
>
> On May 21, 2026, at 12:56 PM, Florian Anwander wrote:
>> If the device creates other data then this is still doable. The real challenge for a MIDI clock generator is handling MIDI-thru...
>>
>> Am 20.05.26 um 22:46 schrieb Tom Wiltshire:
>>> 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!
>
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