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Old 07-15-2019, 10:24 AM   #1
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Default MIDI in under ALSA + M-Audio card doesn't work (Linux)

There appears to be a bug in the Linux version or Reaper, whereby MIDI-in on some M-Audio does not function when ALSA is selected as the Audio System in Preferences/Audio/Device. MIDI-out and audio does work, but MIDI in from an external keyboard connected to the sound-card's MIDI-IN port fails to register.

This has been confirmed with the following models: M-Audio 2496 and M-Audio Audiophile 192 sound cards with built in MIDI interfaces.

A work-around is to set the audio system to "JACK" under "Preferences/Audio/Device/Audio System" and specify the following launch command under "Auto-Start jackd":

/usr/bin/jackd -P80 -dalsa -dhw:<soundcard name>,0 -r44100 -p64 -n2 -Xseq

See thread here discussing this here:

My specs:
Lubuntu 16.04.6LTS
Reaper version 5.980 (Linux X86_64)
M-Audio audiophile 192 soundcard

Last edited by Ral-Clan; 07-15-2019 at 10:29 AM.
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