musescore
[MU4 Issue] Note input from MIDI keyboard can be not so accurate as in MU3, some notes are not picked up sometimes (Mac)
Describe the bug Note input from MIDI keyboard can be not so accurate as in MU3, some notes are not picked up sometimes. Check on chords with more than 5 notes
MU3
https://user-images.githubusercontent.com/90187801/183108706-5b824bdd-fe08-4095-863b-91ccc40b6de7.mov
MU4
https://user-images.githubusercontent.com/90187801/183108731-d36d53bc-c2e7-4dd9-a1ab-71d2ff6634b3.mov
Platform information macOS
Additional context #12261
@abariska Still occurs on my side (latest master, Mac12.6, Arturia KeyLab 61 Essential USB)
@bkunda or @jessjwilliamson Can you try on your Mac side please? Compare MU3 and MU4.
Do you see any difference especially when entering 8-10 note chords in a row?
Thanks!
@DmitryArefiev Still able to reproduce in MacOS with MS4.
https://user-images.githubusercontent.com/86290556/190997466-e6f8ce46-b1cc-4879-9a1d-80a5e54cc461.mov
Part of this experience for me made me wonder whether the issue was related to how sensitively MS is recognising the input signal; the seventh chord I play in the above video, for example, could potentially be a result of my not playing both hands exactly together.
But, as something of a sanity check, I did try using a flat, level object to press all the keys down simultaneously (see the lower-pitch chords towards the end of the video). Turns out this was worse than when I used my own fingers (which is, as far as my piano technique goes, something of a relief 😅).
For what it's worth, this was tested using a Roland F701.
And unfortunately I couldn't get MS3.6 to recognise my keyboard, which is bizarre, but as a result I was unable to do a comparative test this time around.
@Tantacrul I think we can move it to Beta2. MIDI note input is better in MS3 but the basic things work fine in MU4 :
https://user-images.githubusercontent.com/90187801/193644657-2bbcc174-d071-4dc6-bf23-b83215c465fd.mov
There are some issues with delay and with missing notes in cluster chords (on Mac) but it's not critical for now
Since it is likely that we will release once everything in Beta 1 is complete, I think we should leave this here.
However, @Eism / @RomanPudashkin - it's fine to focus on other issues in Beta 1 for now. I'd like to understand how difficult / unknown / time-consuming this specific issue it to fix.
@Tantacrul It's hard for me because I can't reproduce it. This may be due to the fact that I have a specific midi keyboard or that I press the keys in a wrong way.
@DmitryArefiev - what device do you have? Perhaps we ask to get @Eism the same one?
@Tantacrul I have Arturia KeyLab 61 Essential. It might help but I'm not sure...
I think the root issue here that MU4 has a bit more delay when entering notes from MIDI keyboard comparing with MS3. It could be due to general performance issue (MU4 take more cpu comparing with MS3) Maybe @vpereverzev can help to understand is it related or not.
@Tantacrul To understand how critical or not the current issue (Note input from MIDI keyboard can be not so accurate) you should try MIDI note input in MS3 and in MU4. I think for basic note input, MU4 works fine.
@jessjwilliamson @bkunda - it would be good to get your thoughts on this by comparing MS3 with MS4 quickly and determining how much of a problem this is? When you have time. I'll jump on it when I have a chance too.
I just had another look at this. The time between striking a key on the piano keyboard and having it register in note input mode is definitely slower in MS4 than in MS3. But for general note entry purposes, I'd say the way MS4 currently works is still adequate. Things can get a bit dicey if you try to enter large note clusters, but we aren't talking about the majority of user cases here, so I think we can safely save this for a future optimisation.
@Eism - so the first point about latency could be addressed it seems.
Specifically the comparison between MS3 and MS4. If this is a much tougher piece of work to do, perhaps we move it to 4.x. Let me know if it's something you think you can look into or whether you think it will take a lot of time.