mardi 12 février 2019

4 MIDI OUT SUPPORT ON AKAI MPC LIVE

Like all of you here, I tried to connect a MIDI interface to the USB Host port of the MPC LIVE, only to find out that the additional MIDI OUT ports are not supported. Only PORTs A and B are visible, C & D indicating always "None".

While exploring the site https://niklasnisbeth.gitlab.io/mpc-internals, I understood that all the interface cards on the MPC Live/X went through USB, and lucky for me, the author had the good idea to provide a USB dump ( with an "lsub" command) right after the boot.
https://niklasnisbeth.gitlab.io/mpc-internals/cmds/lsusb.txt

The part that interests me most is the following:

  idVendor 0x09e8 
  idProduct 0x003b 
  iProduct 2 MPC Live Controller

I quite recently developed a 3 I/O USB MIDI interface, and it allows to modify easily the VendorID and ProductID as well as the "Product String", identifying a USB device on a host system.
https://github.com/TheKikGen/USBMidiKliK4x4

So I simply modified the parameters of my MIDI interface, so that it would be seen as an internal AKAI controller.

-===========================================-                                   
                CURRENT SETTINGS                                                
---------------------------------------------                                   
Magic number: MDK7-1.181219.1306                                             
Next BootMode: 0                                                              
=> Vendor Id: 9E8                                                            
=> Product Id: 3B                                                             
=> Product string : MPC Live Controller                                            

After plugging in the reconfigured MIDI interface, and rebooting the MPC LIVE, I had the joy of seeing that 4 MIDI ports were now visible A, B, corresponding to the 2 internal MIDI ports, and C, D, corresponding to MIDI OUT 1 and 2 of my interface !! It works !!

In addition, in the setup panel, you can see all MIDI OUT ports in the synchronization options.  I haven't done any in-depth tests, but all MIDI OUT ports work directly, either on the tracks or in MIDI Clock sync.





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