MIDI controller guide

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Midi controllers include a vast assortment of musical equipment including keyboards, pads, and much more. It is possible to connect these devices via USB and other means to a computer in order to output sound for live performances, recording, &c. There are two main routes to accomplishing this in Gentoo: TiMidity++ or Fluidsynth.

1. TiMidity++

emerge timidity timidity-freepats fluid-soundfont

Gentoo uses

eselect timidity

Unfortunately TiMidity++ has difficulties with pulseaudio so you may need to remove it if it is installed. Furthermore once pulseaudio has been removed sound may be blocked when timidity is run as a system service. The solution seems to be that some soundcards require a dmix parameter in /etc/asound.conf.

++defaults.pcm.dmix.rate 48000

The timidity daemon can be run in user mode and need not be a system service.

timidity -iAD -B2,8 -Os -EFreverb=0

To see what midi ports are available use aconnect -l

aconnect -l

Once you identify the $input and $output ports, typically

aconnect $input:0 $output:0

At this point aconnect -l should show the connection, you should hear sound when keys are pressed, and other system sounds should mix.

2. Fluidsynth

Currently broken / TBD