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Old 01-25-2020, 11:38 AM   #1
Thomas Aron Booker
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Default [6.03] Duplicate midi events when recording midi overdub after deleting a note

When recording midi in overdub mode over an existing midi item, there are duplicate midi events (notes on/off) after deleting a note from the midi item.

I noticed this after hearing increased volume and weird phasing issues when monitoring while recording virtual instruments. (Never experienced this in years of using version 5.)

Steps to reproduce:

1. Create a new project.
2. Add a new track and add ReaControlMIDI fx to view midi events.
3. Set the track input to "All MIDI Inputs -> All Channels" and record mode to "MIDI overdub".
4. Create a new midi item by Ctrl-dragging.
5. Record some midi over the new item and observe the log in ReaControlMIDI. (At this stage, everything works correctly: one note one/off event per key press/release).
6. Open the midi item and delete a note.
7. Repeat step 5. Now, each key press/release generates two note on/off events.

In a saved project, closing and reopening the project resets the behaviour back to normal. So does gluing the midi item, which I guess can be used as a temporary workaround. As soon as a note is deleted though, the behaviour returns.

Anyone else experienced this or able to reproduce it?

Last edited by Thomas Aron Booker; 01-25-2020 at 02:46 PM.
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Old 02-01-2020, 03:03 PM   #2
merlino
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Yes I have the same issue,

anytime when I record some vst's and then overdub them I get a very very weird buzzing sound/phase issue. Don't know how to call it. I hope they fix this soon because overdubbing is my producing style =(.

I must say the phasing issue is gone when playing back my recordings.. It only is hearable while literally pressing my keys on my controller.
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Old 02-08-2020, 02:44 PM   #3
averystemmler
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I've also experienced this, reproducible via Thomas's method. I'm currently on v6.02. I've noticed that undoing a midi recording also triggers this behavior.

There seems to be a correlation between this and the record monitoring controls. Before this bug is triggered, record monitoring set to "OFF" will result in MIDI input being recorded silently, as expected. After this bug is triggered, record monitoring set to "OFF" will result in audio playback from MIDI input as though it were set to "ON", an record monitoring set to "ON" will double the midi input as Thomas described.

The "Monitor track media when recording" option seems to have no effect on this behavior.
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Old 02-08-2020, 06:55 PM   #4
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Same here, and I also noticed the creation of a very very long and sustained note.
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Old 03-02-2020, 02:58 PM   #5
jnif
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I have also the same issue in Reaper v6.04.

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Old 03-02-2020, 04:31 PM   #6
averystemmler
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Behavior persists in 6.04 for me as well. I've noticed that it appears to apply to the "touch-replace" and "latch-replace" midi recording modes as well. The modes that don't seem affected are the plain "Replace" mode, and anything that records to a new midi item/take.
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Old 03-04-2020, 12:54 PM   #7
FeedTheCat
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I can replicate as well. Feels like MIDI Overdub mode is quite buggy.

Might also be related to this:
https://forum.cockos.com/showthread.php?t=225394
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Old 03-15-2020, 07:33 PM   #8
sproost
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Same here, on 6.05
After both undo and deleting a note.

As averystemmler said: within the bounds of this midi clip, record monitoring OFF will act as if it's ON, and will log only 1 midi note (the right way). When ON it will log 2 notes, creating a glitch. Only the midi clip is affected, not the whole track.

Glueing fixes this - for the time being I've created a clunky macro trigger that triggers the Glue Item action while pressing record, but it ain't pretty.
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Old 03-17-2020, 05:26 AM   #9
Tiantia
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Default Me too! It makes me crazy!

Same problem here. Please fix it as soon as possible!
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Old 03-30-2020, 09:05 AM   #10
merlino
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I can still reproduce this issue (version 6.07)
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Old 03-30-2020, 09:12 AM   #11
schwa
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This should be fixed in the current prerelease versions of REAPER, if you'd care to try it out:

https://forum.cockos.com/forumdisplay.php?f=37

[edit] the bug fix is now in the 6.08 released version of REAPER.

Last edited by schwa; 04-10-2020 at 08:06 AM.
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Old 04-03-2020, 07:34 PM   #12
ReaperStudent1
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Default Re: schwa This should be fixed....

Thank-you! I just tried it and so far overdub/midi works perfectly (again). Awesome. I was getting used to turning record monitor off but now I won't have to do it. Sincere thanks!
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Old 04-04-2020, 10:31 AM   #13
merlino
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Thankyou !
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Old 04-10-2020, 05:33 AM   #14
Thomas Aron Booker
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Excellent, thank you.
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