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What else is on the USB connectors of the PC ? Anything else taking lots of bandwidth (a USB3->HDMI display for example ?)</div>
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<b>From:</b> Synth-diy <synth-diy-bounces@synth-diy.org> on behalf of Jean-Pierre Desrochers via Synth-diy <synth-diy@synth-diy.org><br>
<b>Sent:</b> 29 October 2025 16:37<br>
<b>To:</b> Synth-diy@synth-diy.org <Synth-diy@synth-diy.org><br>
<b>Subject:</b> [sdiy] Reliable MIDI recording app for PC.. Or my Sonar X3 Pro DAW is not set correctly..</div>
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<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">Hi lists,</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"> </span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">A while ago I built a MIDI piano roll player<br>
that can read old piano rolls and play them through its dedicated MIDI out.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">The unit has 2 parallel MIDI outputs.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">The first MIDI output is wired to a small Yamaha P50m MIDI piano module with speakers.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">The second MIDI output is sending the same signal<br>
to my Sonar X3 Pro DAW to record all the played MIDI notes<br>
so I can save the song in a .MID file. Fine.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"> </span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">Here is my problem:</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">When I listen and look at a fast playing piano roll<br>
I can see all the notes on the paper roll are correctly playing<br>
on the Yamaha module with no lags.<br>
That means that my player CPU is doing its job correctly<br>
and the MIDI output is reliable.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">But after recording a roll in my DAW and playing it back<br>
using a piano plugin and noticed intermittent lags<br>
recorded in the MIDI track.<br>
I use a Focusrite Scarlett 2i4 USB audio device with MIDI.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">It’s connected in a USB3 connector on my PC.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">And the settings in my Sonar X3 Pro are set to ASIO USB.</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"> </span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"><img size="76268" height="643" width="732" style="width: 7.6354in; height: 6.7083in; margin-top: 0px; margin-bottom: 0px;" id="x_Image_x0020_1" data-outlook-trace="F:1|T:1" src="cid:image001.png@01DC48CF.BA6C92A0"></span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"><img size="91928" height="642" width="732" style="width: 7.6354in; height: 6.6979in; margin-top: 0px; margin-bottom: 0px;" id="x_Image_x0020_2" data-outlook-trace="F:1|T:1" src="cid:image002.png@01DC48D0.12C685F0"></span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"> </span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">I thought this could be caused by some kind of timing precision<br>
or ‘Snap’ option selected that should not be..</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">The set timing was at ¼ in my last MIDI recordings</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">And maybe should be much higher (like 1/32 Triplet) ?</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"><img size="51856" height="588" width="451" style="width: 4.7083in; height: 6.1354in; margin-top: 0px; margin-bottom: 0px;" id="x_Image_x0020_3" data-outlook-trace="F:1|T:1" src="cid:image003.png@01DC48D0.CEFBFB10"></span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"> </span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">I don’t know what to do with this issue..</span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;"> </span></p>
<p style="margin: 0cm; font-family: "Calibri", sans-serif; font-size: 11pt;"><span style="font-size: 12pt;">I was thinking of using a separate app that would be easy and reliable<br>
outside my Sonar.. But I think it’s not the way I should take.<br>
<br>
</span></p>
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