Support and discussion for all of Akai’s modern standalone MPCs including the MPC X / X SE, MPC Live 1, 2 & 3, MPC One / One+, MPC Key 37/61.
By jamos Sun Nov 29, 2020 2:52 am
Well this is damned weird. I have found an issue with MIDI that causes my external synths to lock up. MPC LIve, version 2.9, I do not know if this was present in 2.8.1

I am using the MIID program feature to send a MIDI bank and program change message for my Nord G2. In experimenting I discovered that this is sent as soon as the project loads, which made me happy as this is something I have REALLY wanted to do. So I added the appropriate settings to about 6 songs, did a test and even made a video of it working to send to my bandmates. Then I added it to the rest of our songs, went to sequentially test them... and my G2 locked up. It continues to lock up each time I load a project.

In looking at the output of the MPC with Midi-OX when a project is loaded, this is what I see:

Code: Select all===> MIDI-OX Version: 7.0.2.372
 ===> Log Opened: Sat 28-Nov-2020 18:34:35 ===>
 TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT               
    896224  1  --    186     0     0   11  ---  CC: Bank MSB         
    896224  1  --    186    32     2   11  ---  CC: Bank LSB         
    896224  1  --    202     4   ---   11  ---  Program Change       
    896224  1  --    202     4   ---   11  ---  Program Change       
    896224  1  --    202     4   ---   11  ---  Program Change       
    896224  1  --    202     4   ---   11  ---  Program Change       
    896396  1  --    186   123     0   11  ---  CC: All Notes Off     
    896396  1  --    186    64     0   11  ---  CC: Pedal (Sustain)   
 <=== MIDI-OX Log Closed: Sat 28-Nov-2020 18:35:27 <===


In other words the program change is sent 4 times in rapid succession. Presumably the G2 chokes on that.

But... why did it work and then not?

I have rebooted the G2 and MPC several times.

Related - is there are place to officially submit bugs on this instrument?

FWIW I have not had any other problems with 2.9, including project save.
By jamos Sun Nov 29, 2020 7:23 pm
Turns out it only hits specific programs on the G2, so I will look there. Still puzzling as I use program changes with G2s all the time...
By jamos Mon Nov 30, 2020 2:43 am
For what it's worth: this also happens in 2.8.1.

I cannot for the life of me comprehend what is causing this, but I am cleaning it up by deleting the midi programs from projects and rebuilding them from default values.
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By DeaDeus Mon Nov 30, 2020 4:21 pm
Hi there, as you are using MIDI OX I assume you are routing the MIDI signals through your PC.
I am using the MSCX daily by now - but as standalone only - NO software routing. I had (and still have) MIDI issues, but this is new to me. None of my gear, even the rather old ones, ever had this issue. Especially my very old (20years +) RS7000 is very happy with the signals coming from the MPCX (very lean software the RS7K has - no Linux or Android bulkware).
--- Did you try to hook up your hardware (NL G2) directly to one of the four MIDI out ports? Still the same issue?