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Getting Hydrogen to work with JACK in Ubuntu Studio

I recently stumbled upon the Ubustu Feed when I began learning Ardour. They have a great tutorial on how to sync Hydrogen with Ardour:

This tutorial will show you how to sync up the digital audio workstation, Ardour, and the advanced drum machine, Hydrogen. This will allow you to have a full featured drum machine playing in perfect time with your Ardour session. Or, one hell of a fancy click track.

I ran into one complication on my system though — getting Hydrogen to work with JACK. The output sockets just weren’t showing up when I opened Hydrogen, even though JACK was running and working fine. Thanks to a post by schivmeister in the Hydrogen Forum, I was able to get it working by changing ‘alsa_pcm’ to ‘system’ in the JACK portion of the ~/.hydrogen/hydrogen.conf file so that it reads as follows:

<jack_driver>
<jack_port_name_1>system:playback_1</jack_port_name_1>
<jack_port_name_2>system:playback_2</jack_port_name_2>
<jack_transport_mode>USE_JACK_TRANSPORT</jack_transport_mode>
<jack_connect_defaults>true</jack_connect_defaults>
<jack_track_outs>true</jack_track_outs>
</jack_driver>

Best. Metronome. Ever.

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