[LAU] USB audio device and JACK

[Björn Lindig]

> I have it running here. And it works
> in douplex mode, but you cant switch off the direct
> monitoring, which is quite a pity. But i can confirm that
> there is no mixer availible.
> 
> I cant tell what did it, but it worked fine from the
> beginning. I have build alsa from source and loaded firmware
> for the tascam usxy cards. Might be quite the same
> procedure, i assume.
> 
> Bon chance,
> 
> Bjoern
> 
> 
> > 
> > > Hello everyone!
> > >    I had a USB audio device here, a Zoom
> > h4n, portable recorder/audio 
> > > interface. When I connect it to my box, it shows
> up
> > and ALSA finds it.
> > >    First: ALSA can't open the mixer, no
> > elemtns found, alsamixer says.
> > 
> > That's pretty normal with USB devices
> > 
> > >    Second: I can't use JACK with it,
> > although I read on some forum, that a chap 
> > > managed with Fedora FC6. JACK tells me something
> about
> > broken pipe. It runs, 
> > > but there's no sound and I definitely have to
> "killall
> > -9" it. :-( I tried 
> > > JACK with different period sizes (-p) and
> different
> > frames per period (-n), 
> > > different samplerates, although I can set these
> on the
> > Zoom, before I connect 
> > > it. As I said: ALSA can record from it and play
> sounds
> > using it.
> > >    Does anyone of you have an idea on the
> > subject?
> > 
> > Have you tried to run JACK in "capture only" ("-C"
> IIRC)
> > mode?
> > If I understand correctly, that device acts only as
> input
> > device...?
> > 
> > >    Kindest regards
> > >          Julien
> > 
> > HTH
> > Ciao
> > -- 
> > Emiliano Grilli
> > Linux user #209089 
> > http://www.emillo.net
> > _______________________________________________
> > Linux-audio-user mailing list
> > Linux-audio-user at lists.linuxaudio.org
> > http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
> > 
> 
> 
> 
>