manual/_manual/03_setting-up-your-system/05_setting-up-midi/02_midi-on-linux.html

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2013-01-29 19:26:36 -05:00
---
layout: default
title: MIDI on Linux
---
<h2>a2jmidid</h2>
<p>
<dfn>a2jmidid</dfn> is an application that bridges between the system
<abbr title="Musical Instrument Digital Interface">MIDI</abbr> ports and
<abbt title="JACK Audio Connection Kit">JACK</abbr>.
</p>
<p>
First you should make sure that there is no ALSA sequencer support enabled
in JACK. To do that open QJackCtl's <kbd class="menu">Setup</kbd> window.
</p>
<p>
Set <kbd class="menu">Settings &gt MIDI Driver</kbd> to <kbd
class="input">none</kbd>.
Then uncheck the <kbd class="optoff">Misc &gt; Enable ALSA Sequencer
support</kbd> option.<br />
Now it's time to restart your jack server before going on.
</p>
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<h3>Check for a2jmidid availability</h3>
<p>
First, check whether a2jmidid is already installed in your system. After
starting your JACK server, go to the command line and type
</p>
<kbd class="cmd lin">a2jmidid -e</kbd>
<p>
If a2jmidid does not exist, install it with the software manager of your
Linux distribution and try again.
</p>
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<h3>Check surface control MIDI ports</h3>
<p>
After starting a2jmidid, your control surface MIDI ports should appear in
qjackctl under <kbd class="menu">Connections &gt; MIDI &gt; a2j</kbd>.
</p>
<p>
2014-02-03 19:53:24 -05:00
You can now add <kbd class="input">a2jmidid -e</kbd> as an "after start-up" script in the <kbd
class="menu">Setup &gt; Options</kbd> tab of QJackCtl, so that it is
started automatically whenever you start JACK.
</p>