[LAU] sending sysex while jackd runs

Johannes Kroll jkroll at lavabit.com
Sat Feb 23 16:16:27 UTC 2013


On Sat, 23 Feb 2013 10:06:16 -0600 (CST)
Brent Busby <brent at keycorner.org> wrote:

> Usually when I want to send sysex dumps to midi hardware, I just use the 
> amidi command from the shell, but when QJackCtl is already running 
> (along with lots of other Jack apps), the raw device is already in use 
> by Jack and I can't connect to it at the raw Alsa level anymore.
> 
> Since it's kind of a pain to have to shut down my whole Jack session 
> just to send a sysex dump, is there an easy way I could just sysex 
> through Jack?  Are there any shell commands I should know about that let 
> you do this through Jack Midi rather than Alsa Midi?

I don't know if there's such a tool. But AFAIK jack would only block
the raw MIDI device when you use "-X raw" to use the raw MIDI driver in
jack. Do you need that driver? If you don't, you can use the "seq"
driver instead. I find that one more useful anyway. You can change that
in Setup -> Settings in qjackctl. (Also, checking "Enable client/port
aliases" in Setup -> Display shows you readable MIDI device names in
the qjackctl MIDI tab, instead of the useless JACK default names.)




More information about the Linux-audio-user mailing list