7 Apr
2011
7 Apr
'11
8:44 p.m.
Hi
I am looking for a jack-aware console midi sequencer.
I have tried Cuse, and it works wonderfully with alsa, but I can't get
it to work when jack is running. Starting jack with -Xseq, I run cuse
and point it at /dev/snd/midiC1D0 (or whatever, I've tried other
nodes), cuse segfaults.
I also tried using a2jmidi, same results, cuse segfaults.
I have found some text-based sequencers, like tektrakker, but none
that seem jack-capable. I would very much appreciate if some knows
an option and could inform me.
Thank you.
7 Apr
7 Apr
9:24 p.m.
Hello Egor1
Good news and bad news. The bad news first: There is NO MIDI sequencer for
the console, that directly supports jack.
good news: You can work around that with midish and a few other tools. At
least you can get jack_transport start/stop and clock, so you can sync it to
other audio apps. With a2j midi bridge you can also connect midish to jackmidi
ports.
I've just uploaded a small script, that starts all the necessary
applications. If you like I can also upload tarballs of the software packages,
since I don't have all the original links and a few of them were hard to find.
http://juliencoder.de/ci_jack_midi.sh
You need GNU screen, which is a text-based window manager. It's used to load
all the apps on one console and without user interaction.
You will have to change or comment (put a # infron of the line) the jack
command line.
You need a2jmidid, which you seem to have.
You need j2a_midi_bridge, which - if I remember correctly is included with
a2jmidid.
You need jack_midi_clock a small utility written by Gabriel M. Beddingfield,
if I remember correctly. That's one of the hard to find crew.
Lastly you need klick a commandline jack metronome by Florian Schmidt.
There's some half finished work to make the interactive interface more
powerful, allowing start/stop to be send, when you press start/stop and allow
for odd meters like 13/8 and such. If you need that, drop me a lineand I'll
send it to you. Maybe I'll even put in some more work, that Florian suggested.
you don't need klick, if your audio software supports jack timing info, as
needed for the clock. But if you only work in text, then there is no such
software.
A word about midish: It's not as nice in a simple way, as cuse, but it's
much more powerful. It has a nice commandline interface like your average
shell (sh/bash). It also has a command language, which allows you to write
procs (functions) for your own convenience and better workflow. It' quite
simple, if you've worked with a shell script before.
If you need more help, jst say the word. I'll be glad to help you on or
off-ist, whatever suites you best.
Warmly yours
Julien
--------
Music was my first love and it will be my last (John Miles)
======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de
9:48 p.m.
On Thu, Apr 7, 2011 at 5:29 PM, Julien Claassen <julien(a)c-lab.de> wrote:
You need a2jmidid, which you seem to have.
You need j2a_midi_bridge, which - if I remember correctly is included with
a2jmidid.
you should not need both of these. a2jmidid is bi-directional. a2j and
j2a are uni-directional counterparts.
9:59 p.m.
On 4/7/11, Paul Davis <paul(a)linuxaudiosystems.com> wrote:
you should not need both of these. a2jmidid is bi-directional. a2j and
j2a are uni-directional counterparts.
I don't think this is true. a2jmidid does not mess with alsa
sequencer ports, it just makes a pair of jack ports for each existing
alsa seq. The _bridge programs actually create alsa seq ports and
hard-bridge them to either jack_capture or _playback.
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3 comments
3 participants
participants (3)
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Egor Sanin -
Julien Claassen -
Paul Davis