[PD] Using midi

Pierre Massat pimassat at gmail.com
Thu Jul 9 09:22:37 CEST 2015

Hi Jeff,

Thank you for your reply. a2j is running by default in my version of
AVLinux, that's what I'm using. Using the patchbay in QJackctl I managed to
make the connection between Pd and the controller persistent.
The problem lies with Pd now, in the sense that the midi port is not open
by default, and I have to manually open it every time I start Pd.

So I was wondering if there was a way to open the port by default at
startup. Perhaps with a startup flag ?



2015-07-08 21:36 GMT+02:00 Jeff Sandys <jpsandys at gmail.com>:

>> Date: Tue, 7 Jul 2015 21:48:12 +0200
>> From: Pierre Massat <pimassat at gmail.com>
>> Subject: [PD] Using midi
>> Dear list,
>> I am trying to understand how midi works in Pd, and how to facilitate the
>> connection to a midi device.
>> I m using Pd 0.46-6 on AVlinux with JACK. When using JACK, OSS midi
>> doesn't
>> work. ALSA does, but in an odd way (at least to me).
>> Pd doesn't appear as a writeable midi client in JACK by default, until I
>> ask Pd to open port 1 (or any non-zero positive integer it seems). I can
>> then automate the connection in JACK using a patchbay profile.
>> Is there no easier way ? Is it possible to save the midi device in Pd the
>> way sound settings are saved ? It would be nice if we could send a message
>> to Pd when loading a patch to open a specific midi port.
>> Cheers,
>> Pierre.
>> I have solved some jack-midi problems with a2jmidid as described here:
> https://wiki.archlinux.org/index.php/JACK_Audio_Connection_Kit#MIDI
> I hope this helps.
> -- Jeff
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