10 Mar
2016
10 Mar
'16
1:48 p.m.
Hello Nacho,
On 03/10/2016 01:26 PM, Nacho Otal wrote:
Hello,
I’m working on a project where we’d like to interface a MIDI board (livid’s brain jr.) to
the IDJC application (http://idjc.sourceforge.net <http://idjc.sourceforge.net/>).
As of by now, we’re able to configure the board and send MIDI commands through the USB
port to the Ubuntu Studio that is our development box.
However, and as you’ll see in the attached screenshot
(https://www.dropbox.com/s/ss9i5bwaqzs5ays/idjc.png?dl=0), IDJC is only able to retrieve
MIDI Commands from JACK and not from ALSA.
I understand that there’s a way to route the MIDI channels from ALSA to JACK and this can
be done through ALSA PATCH BAY (http://pkl.net/~node/software/alsa-patch-bay/
<http://pkl.net/~node/software/alsa-patch-bay/> ) for example.
I’d be glad if you could drop some lines to this conversation, I have in fact two
questions:
1.- Does anybody have an experience with the livid brain jr, ALSA, JACK and IDJC?
2.- Is there a possibility to route directly midi commands to JACK avoiding ALSA?
Thank you very much for your time and help.
You can try using JACK with -Xseq, this will trigger the JACK internal
ALSA-JACK MIDI bridge. There's also a direct JACK option for this but
that depends on the JACK version you're using. IIRC for Jack2 this is
-Xalsarawmidi. You can also use a2jmidid but then you need to start that
in the background after having started JACK.
Jeremy
