Stuck MIDI notes! What is UP?

[Kellog]

New Macbook 2.7 Retina, newest MOTU MIDI driver running an admittedly old MTP AV thru usb. Accessing an external Roland 5080. If i just play a few notes together (in record mode within DP 7,) one of em will stick on. Command-1 stops it, but this is an unusable scenario.
Any insights into this would be GREATLY appreciated.
Before upgrading my Mac, it happened way less often on my G5 Dual 2.7. I could get some parts laid and deal with the occasional stick. This is immediate and disheartening. Enuff whining… Thanks, Kelly

[Kellog]

Saw in another post that it may be a USB 3 to USB 2 communication problem as the new mac speaks to the MTP AV. I'm going to explore a small, hopefully cheap usb 2 hub connected to the mac usb 3 port. Yet another little peripheral to add to my space yay…

[Kellog]

Bought a USB 2.0 hub and now everything works well. Posting even tho it appears I'm talking to myself ha ha...

[HCMarkus]

Thanks for letting us know!

[MIDI Life Crisis]

You're not talking to yourself. You're being watched!

Yes, thank you for the report and solution.

[Kellog]

I got the solution from a post by Babz where she had explored the USB 3 being a problem and a hub being the answer for MIDI stability. The post is right next to this one right now. Happy to post good news and thanks for watching HC and MLC!

[williemyers]

Kelly, hope to God that you've truly solved your stuck/hanging MIDI notes problem. It's been one of the most contentious issues over the years here (and on other forums).
But, for future ref. - - and I hate to mention this because I can't find the reference for you - - there was a note from MOTU or someone that specified that Roland products were much more susceptible than other brands to hang with MOTU products. And, in my personal experience, back when I still had synths, my 3080 was a constant culprit.
My solution was to move to all software-based, but I can still get the odd stuck note....just not *near* as many as I used to get with hardware!
Like I said, good luck with it!

[James Steele]

It's been a contentious issue because there are users like me who, whether it's luck, etc, have NEVER experienced the famous "stuck note" issue (or non-issue depending on one's experience). Very much a YMMV situation.

[Kellog]

Yes Williemyers, so far it's still solved and clear. I was getting them with my soft synths Sonic Synth 2 and Stylus RMX as well. But I'm not having any hangs right now. So I'm happy for now. And I'm happy for James that he never got em. What an mood breaker they were.

[James Steele]

I can only imagine how frustrating it would be. Only thing I may have experience with is the issue when a note gets stuck when the release is too close to the attack of the *same* next note.

[foxrockson]

then its hooray all around !!!!

I plugged my MicroLite into my Apple A1242 Aluminum Keyboard and all is well with the external synths ......no stuck notes

[Babz]

According to MOTU, this USB3 issue is fixed with the Mavericks upgrade, hub no longer necessary.

(Not on Mavericks yet, so haven't been able to verify this personally. )

Babz

[Dan Worley]

Very help information in this thread. Thank you to all.

[2leftears]

Been in MIDI hell all day trying to sequence parts with notes hanging, strange sounds and general chaos. Express XT into nMP USB3 with the latest DP8
version. I moved the connection to one of the USB2 outputs on the TB display. Problem solved. This only cost me one day. Very frustrating.

[mikehalloran]

It may be a USB 1.1 issue. The MTP AV-USB is not USB 2 (are any of the MOTU MIDI interfaces?). At least one report has said that routing it through an Apple keyboard has fixed this, also. I don't know of any Apple USB keyboards that are USB 2.

I've never had this issue but, frankly, I have done so little with my MIDI gear that I might as well pack it up. I did replace the battery and update the chip set in my MTP AV-USB in 2012 so that it would work with an intel Mac. That chip set is no longer available from MOTU.