Subject: Re: [LAU] USB audio device and JACK

From: Emiliano Grilli <emiliano.grilli@...> · Date: Friday, June 26, 2009 - 5:52 pm

Julien Claassen  writes:
> Hello everyone!

quoted text>    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

quoted text> 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

quoted text>          Julien
HTH

Ciao

--

Emiliano Grilli

Linux user #209089

http://www.emillo.net

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