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M-Audio Oxygen49 MIDI unwantedly sustains notes in Pro Tools without a sustain pedal?

Sometimes the M-Audio Oxygen49 unwantedly and randomly sustains notes (without a sustain pedal) in Pro Tools (even when I'm not recording a session). For example, if I play a chord a bit forcefully or simply palm a bunch of random notes on the keyboard, and after a few seconds let go of my hands from the keyboard, a few of the notes in that chord or palmed notes sustains forever until I stop it in Pro Tools. This issue doesn't occur with my Yamaha MIDI keyboard. I know when recording an actual session I won't be pressing notes unnecessarily hard or play random notes, but I don't want to encounter this in a recording session and it's a bit off-putting as to knowing this has the potential to be a problem.

Is there a setting in the M-Audio Oxygen49 that auto sustains notes at random, or when you press keys too firmly? Again, this is without any sustain pedal plugged in. I've searched for answers on Pro Tools forums and even posted a question on a Pro Tools support forum to no avail and I have a strong feeling this is an M-Audio issue and not a Pro Tools one given that my Yamaha MIDI keyboard does not have this issue.

Thank you in advance.
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  • Hey oahucookie,

    Thanks for posting!

    Sorry to hear that you are having trouble. What you're describing is known as MIDI hang. This happens when the MIDI transmission is bottlenecked. When you release a key, the controller will send a Note Off message, informing the virtual instrument to cease sounding at that pitch. If your data stream is overwhelmed with large clusters of notes, the Note Off message may not be read by Pro Tools, leading to an indefinite sustain.

    This isn't a hardware issue per say but it can be improved by optimizing your setup. I would suggest using a USB cable with a ferrite bead to speed transmission rates. You want to keep the overall length of the cable under 6 feet. Test the controller with different USB ports on your computer, avoiding any USB hubs or adapters.

    Additionally, If you have applications other than Pro Tools open on your computer, close them.

    Let me know if you have any questions!
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