[sdiy] Reliable MIDI recording app for PC.. Or my Sonar X3 Pro DAW is not set correctly..

[The SynthiMuse]

As others have said, Midi-Ox is really useful.
As a further suggestion, I would reccomend doing a build of your player
piano software that does nothing other than output simple regular notes
triggered by a timer.
You could check for minimum jitter on an oscilloscope if you have one. You
could then collect that midi stream using midi-ox to verify your hardware
is correct and then move on to comparing the performance of Sonar.
Assuming there isn't a deluge of extra cc messages and running status in
your midi stream, the likelihood is that its either a driver issue with
sonar, or some setup option, as you and others may have suggested.
I hope this helps.
Cheers
Gerry

On Thu, 30 Oct 2025, 15:14 Roman Sowa via Synth-diy, <
synth-diy at synth-diy.org> wrote:

> How about using some old program written when quality of the code still
> mattered more than graphical appearance and collecting user data? For
> example MidiEditor from Markus Schwenk.
> I use it (rarely) for editing single MIDI notes, but it also does
> recording MIDI.
> What might be appealing to you in this project - I think the piano roll
> notation is the only way it can show notes
>
> Roman
>
> W dniu 2025-10-29 o 17:37, Jean-Pierre Desrochers via Synth-diy pisze:
> > Hi lists,
> >
> > A while ago I built a MIDI piano roll player
> > that can read old piano rolls and play them through its dedicated MIDI
> out.
> >
> > The unit has 2 parallel MIDI outputs.
> >
> > The first MIDI output is wired to a small Yamaha P50m MIDI piano module
> > with speakers.
> >
> > The second MIDI output is sending the same signal
> > to my Sonar X3 Pro DAW to record all the played MIDI notes
> > so I can save the song in a .MID file. Fine.
> >
> > Here is my problem:
> >
> > When I listen and look at a fast playing piano roll
> > I can see all the notes on the paper roll are correctly playing
> > on the Yamaha module with no lags.
> > That means that my player CPU is doing its job correctly
> > and the MIDI output is reliable.
> >
> > But after recording a roll in my DAW and playing it back
> > using a piano plugin and noticed intermittent lags
> > recorded in the MIDI track.
> > I use a Focusrite Scarlett 2i4 USB audio device with MIDI.
> >
> > It’s connected in a USB3 connector on my PC.
> >
> > And the settings in my Sonar X3 Pro are set to ASIO USB.
> >
> > I thought this could be caused by some kind of timing precision
> > or ‘Snap’ option selected that should not be..
> >
> > The set timing was at ¼ in my last MIDI recordings
> >
> > And maybe should be much higher (like 1/32 Triplet) ?
> >
> > I don’t know what to do with this issue..
> >
> > I was thinking of using a separate app that would be easy and reliable
> > outside my Sonar.. But I think it’s not the way I should take.
> >
> >
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