Re: [LAU] USB audio device and JACK

Julien Claassen <julien@email-addr-hidden-lab.de> writes:

> 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
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