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Pi as MIDI message converter for a live rig?
Posted: Wed Jul 14, 2021 1:38 am
by nycumMusic69420
Hi! I have a MIDI footswitch capable of sending program change, cc, and note messages. I'd really like to use it to control a parameter on my drum machine, but the parameter responds to system exclusive messages, which my footswitch can't send. Anyone know if I could use something like QMidiRoute on a Pi to map the messages coming from my footswitch to sysex messages, and forward the sysex messages to my drum machine? Thanks!!
Re: Pi as MIDI message converter for a live rig?
Posted: Thu Sep 09, 2021 6:35 pm
by Transit_of_Io
nycumMusic69420 wrote: ↑Wed Jul 14, 2021 1:38 am
Hi! I have a MIDI footswitch capable of sending program change, cc, and note messages. I'd really like to use it to control a parameter on my drum machine, but the parameter responds to system exclusive messages, which my footswitch can't send. Anyone know if I could use something like QMidiRoute on a Pi to map the messages coming from my footswitch to sysex messages, and forward the sysex messages to my drum machine? Thanks!!
Pure Data can output sysex, allegedly. (I use it for other kinds of midi routing/conversion from a pedal, but haven't done sysex stuff myself). Just connect the pedal's midi output to one of pd's inputs, use the [notein] or [ctlin] or [pgmin] object to receive the message, and use it to trigger the output.
If you have a plugin host or use JALV, there's an LV2 plugin called Midi Event Generator that can be triggered with midi input and send sysex messages.