OS2XL: MIDI note off stops sample playback

you're welcome.

No not at all. I was thinking that if it doesn't happen in OS3, it would confirm that it's a bug in OS2XL. As you're using external devices it's difficult to try to reproduce it exactly the same way.

Got a reply.
His advice is to do a factory reset first.
Then to check if input thru is off, fx are off and so on.
He's thinking about a polyphony issue probably.

If the problem persists, please send your project to him.
It will be faster to deal with him directly.

Thanks, I tried these things this morning with no change. I just realized that I left one HUGE detail out. The project that this is occurring in was created in OS3. When I went back to OS2XL there were a few things that were screwed up that I fixed. Perhaps more is screwed up behind the scenes. I'll follow up if I see the same problem in a project created in OX2XL.

Update:

I'm working on a project that I began in OS2XL so the backward compatible suspicion shouldn't be an issue.

My setup includes a D50 which isn't multitimbral. If I want to utilize multiple voices in the same project then I need to record the MIDI track to audio in order to free up the MIDI channel to use another voice. With my previous project, I recorded the track using the 'Record' function and then assigned the sample to a pad. In my new project I used an audio track to do this instead and I'm seeing the same problem with a note off causing the audio track to mute. But I've made a further discovery in that the muting only occurs when I'm on a different track from the source track. In other words, if I have the track set to the Audio track and a note off occurs from the keyboard then the sample is muted.

Anyway, just wanted to update the thread to help future searchers. I'm going to write up a bug for JJ and submit to him directly.

Thanks!

I heard back from JJ. It turns out this problem is specific to my Roland D50's MIDI implementation. Apparently when the last key is released, it sends an All Note Off message which is interpreted by the MPC as a sort of panic and all samples/notes are halted.

From what I've read, this issue can exist with other controllers, too. It isn't wrong, it just isn't completely right.

He suggested switching to OS3 which has an incoming MIDI message filter which will allow squashing of the All Note Off message.

I'm also exploring an external MIDI filter box. Either one from MIDI Solutions or maybe I'll try to build up a MIDIPal.

Good luck.

sylvan wrote:I heard back from JJ. It turns out this problem is specific to my Roland D50's MIDI implementation. Apparently when the last key is released, it sends an All Note Off message which is interpreted by the MPC as a sort of panic and all samples/notes are halted.

From what I've read, this issue can exist with other controllers, too. It isn't wrong, it just isn't completely right.

He suggested switching to OS3 which has an incoming MIDI message filter which will allow squashing of the All Note Off message.

I'm also exploring an external MIDI filter box. Either one from MIDI Solutions or maybe I'll try to build up a MIDIPal.

Good luck.

I didn't read the entire thread, but this is also something that can be easily filtered using software like Pure Data or an Arduino (although not as easy).

For the record - the MIDI monitor screen in JJOS is awesome for dealing with these kinds of issues, you can see exactly what your controller is sending in, and on which channel. Makes it much easier to troubleshoot issues, even between two other pieces of midi gear (by putting the MPC between them.)

sylvan wrote:I heard back from JJ. It turns out this problem is specific to my Roland D50's MIDI implementation. Apparently when the last key is released, it sends an All Note Off message which is interpreted by the MPC as a sort of panic and all samples/notes are halted.

From what I've read, this issue can exist with other controllers, too. It isn't wrong, it just isn't completely right.

He suggested switching to OS3 which has an incoming MIDI message filter which will allow squashing of the All Note Off message.

I'm also exploring an external MIDI filter box. Either one from MIDI Solutions or maybe I'll try to build up a MIDIPal.

Good luck.

Hello, I was about to post because I had the same issue with my D50. I was looking at external midi filter boxes, but all the options from MIDI solutions are crazy expensive (cheapest thing I found was $120 canadian for a midi router).

I happen to have a little build-it-yourself midi arpeggiator kit and out of desperation I emailed the guy that built it, figuring he's probably a hobbyist like me and wouldn't mind writing some custom code to fix my little problem, and he actually did!

It's called "arpie," you can google it, available on tindie, $80 plus shipping from the UK. So i dunno, just an alternative option if you don't wanna shell out at least $120 to fix one little problem AND if you're comfortable soldering a kit together. You get a standalone arpeggiator to boot. Just to let you know that there's a cheaper solution.

EDIT: Assuming buying a soldering iron and learning to use it isn't necessary, in that case MIDI solutions is the better option, forgot about those hidden costs.

Ah, thanks! Wish you'd seen this thread a little earlier

Thanks for the suggestion. The Arpie looks cool. Actually, I just ordered PCBs and parts to build up three MIDIPals. They're no longer made by MI but I happen to be an EE so I have the tools and knowledge already.

I'm sort of curious if anyone else out there is interested in the MIDIPal. It's a really cool looking little box. If I find enough interest I could see doing small runs of them so folks could have access to them.

I ended up going to OS3 which allows filtering ALL Notes Off at the MPC input which fixes the problem. But I still want to build these MIDIPals up for fun.

sylvan wrote:Ah, thanks! Wish you'd seen this thread a little earlier

Thanks for the suggestion. The Arpie looks cool. Actually, I just ordered PCBs and parts to build up three MIDIPals. They're no longer made by MI but I happen to be an EE so I have the tools and knowledge already.

I'm sort of curious if anyone else out there is interested in the MIDIPal. It's a really cool looking little box. If I find enough interest I could see doing small runs of them so folks could have access to them.

I ended up going to OS3 which allows filtering ALL Notes Off at the MPC input which fixes the problem. But I still want to build these MIDIPals up for fun.

Ha yeah i coulda saved you some time I guess. Damn I was looking at the midipal too but saw they weren't being made anymore so I just discounted that option. It looks a lot more fully featured but oh well, the arpie works fine for me and there's only so many midi event processors I can use anyway.