Strange MIDI Keyboard recordings

[Tomygood]

Hi all!
I recently installed LMMS 1.3.0-alpha for Windows and was able to properly connect my MIDI keyboard, but whenever I attempt to record something, some of the notes are placed properly at the time I pressed the keys but some get moved ~10 measures later, resulting in quite interesting sounds (I have set quantization at 1/192.)

I wasn't able to find anyone with a similar issue on the forum

Linked are two photos of that happening, one on which I only play the first few notes, but some are somehow moved wayyyy later at seemingly random spots... and the other where I tried to play a scale but notes in the middle got strangely moved around





Does anyone know what is going on and if there is a way to fix it ?

[musikbear]

Hi all!

Hi, Welcome to the Forum Tomygood !
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
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If you like to introduce yourself, to the community, go here:
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I have set quantization at 1/192.

Yuek.. That was what i thought was the problem, so its not..
What happens if you just play and not capture note -Do you hear the pressed notes immediately?

[gettingtired]

I just created an account to report this same problem.
The irony is your post is the first one that appears in the Support section and I clicked out of curiosity because I haven't seen anyone reporting this but it is a problem I've been having for a while and I'm getting tired.

.

To the previous poster, yes the sound can be heard correctly while we play.

I start a new instance by double clicking the square thing. I hit record (NOT record+play). Q is set at 1/192 because otherwise things sound like a robot or the program completely messes up the tempo because there is a certain latency with the MIDI keyboard input even though it works flawlessly and instantly in Kontakt. Happens at 1/48 too.


I am playing and suddenly I hear notes I am not playing. If I just look at the piano roll, from the beginning of the process, I can see it is obviously empty when I start the instance (square). I hit record, still empty. I begin playing. Suddenly at some random point I see notes being generated ahead in time, when the piano roll cursor hasn't even reached that place (sometimes it's even 15 seconds away, it's not a matter of latency). When the cursor reaches them, I hear those notes (again, as I had also heard them when I played them).

This has messed up too many of my projects.
I am tired of spending hours trying to fix problems in the basic functions of a program that has been around for 20 years.
It happens in Windows and in Ubuntu. My computer runs Kontakt, Davinci Resolve and many other GPU heavy programs. It is not a matter of specs. MIDI input directly from piano to computer via USB. Not a peripheric problem. It happens only with this program.
Tired of wasting hours.

[musikbear]

I am playing and suddenly I hear notes I am not playing.

Do you use a loop in pianoroll?
What LMMS version?
Did you dl for LMMS.io?

It happens only with this program

And only for you. Your described issue cant be reproduced, so the issue is not general. It is not identical to the OP, yours are different. It will happen if you use a loop

Besides that, since you are new in Forum
Welcome gettingtired !
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
If you like to introduce yourself, to the community, go here:
http://lmms.io/forum/viewtopic.php?f=4&t=4480

[gettingtired]

I am playing and suddenly I hear notes I am not playing.

Do you use a loop in pianoroll?
What LMMS version?
Did you dl for LMMS.io?

It happens only with this program

And only for you. Your described issue cant be reproduced, so the issue is not general. It is not identical to the OP, yours are different. It will happen if you use a loop

Besides that, since you are new in Forum
Welcome gettingtired !
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
If you like to introduce yourself, to the community, go here:
http://lmms.io/forum/viewtopic.php?f=4&t=4480

Hi, I have the current latest stable version (1.2.2) downloaded directly from the website, I have tried reinstalling. I have tried in Ubuntu and Windows and in two different machines now. I have tried different data cables to link my piano to USB for MIDI input. It is not a problem with my keyboard because it works flawlessly in other DAWs.

I don't use loops, not in the piano roll, not in the main project window.
I simply open a new project, load a sound (I have tried with plugins from different manufacturers loaded with VeSTige, and the sample sounds that come with LMMS). I double click a square to open the piano roll, hit record (next to play) and start playing. I have Q set to 1/192 to keep the recordings as loyal as possible to my input but I have now replicated the issue in 1/1, and at 3 very different tempo settings.

The OP hasn't described using a loop and his screenshots show he isn't using a loop, and I am not using a loop, so as far as I am concerned our issue is indeed identical. Some of the MIDI input is being placed further down the timeline instead of at the time when we press the key.

[Tomygood]

Even stranger: when I booted up LMMS the day after sending the initial post, everything worked fine. Now I just gotta hope that this doesn't happen again as I still have no idea what caused the issue in the first place...

Also yes to confirm: I was hearing notes just fine while playing (recording or not) and was not using a loop when the issue was occuring.

[musikbear]

everything worked fine.

Sometime that happens. I have just posted a TL:DR chunk that maybe relevant in explaining your experience ..idk, but it is great that LMMS now again works.

[Curious Starchaser]

Hello!

I made my account just to post this, sorry for reviving this old thread but it is my problem too. I have more than a bug report, however. I come offering insight!

Specs
Windows 10
LMMS 1.3.0-alpha.1.102+g89fc6c960
M-Audio Keystation 61 MK3 keyboard connected via USB
M-Audio SP-2 sustain pedal

The Problem
So, this problem plagued me and ruined many good recordings. It was very frustrating. As the others noted, I would hear all the music fine if I didn't record, but if I record I would get erroneous notes. I would see notes appear far in the future, in the past, and hearing the error notes almost always breaks my concentration and ruins the recording.

Once the error takes hold, every single recording will feature error notes. Turning the midi off and on in the sprocket settings didn't help. Pressing stop on every place didn't help. The only thing which fixes the problem is restarting, which is sometimes a pain for bigger files.

Now the insight
I believe I figured out what is causing this issue. You see this issue did not occur until I acquired my very first sustain pedal! I got tired of it plaguing me and tried to explore the issue to see what to avoid. I found that if you hold sustain, play notes, end the recording, and then release the foot pedal, that the error will begin to occur.

It will not occur every single time you do that, but if you do that a few times you will reliably break recording. Further, the first erroneous notes seem to occur where those notes would have been if you had released sustain first before ending record.

Now these error notes will not show up if you just let it record silent air, you must push keys for the errors to occur. In some cases after I broke it with the sustain pedal method above, it wouldn't even record all the notes. I would do a triad and it would get the 1st and 5th, but not always the 3rd and sometimes it would put the third in later (say 5 or 6 key presses later. Putting the note in the past)! Also the issue will not go away after time. Once the error takes hold it is there to stay, so it doesn't seem to just be getting rid of the uncaptured notes as the issue wont sort itself out without restart.

So if you are experiencing this problem, what I found helps limit the occurrence is ensuring your foot is not still on the sustain pedal when you stop recording. Take your foot off, then stop the recording. Doing it that way allowed me to record many times without error.

I am not sure this is the entirety of the problem, maybe holding sustain before you record also causes issues, but I am confident that my specific iteration of this issue involves the sustain pedal and hope this post gives you enough insight to fix the problem.

[musikbear]

what I found helps limit the occurrence is ensuring your foot is not still on the sustain pedal when you stop recording.

It is good that you have found a way to avoid these recording errors on your system, but i am sure this is not general. I believe that what you experiences is that the CPU has a 'hiccup' when you make a pedal-input signal. It is most likely a driver-issue, or there is a need to make a larger buffer, or the priority of the pedal-driver need to be higher. Very hard to guess witch is the tight one, but not sending any pedal-signal will be a combined 'fix'.
Besides that, since you are new in Forum
Welcome Starchaser!
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
If you like to introduce yourself, to the community, go here:
http://lmms.io/forum/viewtopic.php?f=4&t=4480

[Curious Starchaser]

Oh I see. Right now I use 512 / 11.6ms buffer. The default seems to be 256 / 5.8ms, but I remember changing it long ago for some reason. I will try to increase it further and see if that stops future occurrences. By the priority of the pedal driver did you mean the priority as seen in task manager's detail section when you right click a task or will I need to be researching something else? Hopefully the buffer is the fix though!

Thank you for the welcome, the fast response, and for the software. Thanks to the hard work of you and your team I was able to find out making music is something I enjoy and I have used your program to make many songs for practice and a few I released.