linuxaudio.org

Hi all,
I've got a DreamPlug (successor to GuruPlug and SheevaPlug:

) - it's

very close to being a plug-and-play little ARM-based Ubuntu 9.04

machine. It's got audio in and out, and optical audio, so I'm hoping I

can get it set up as a generative audio box.
The audio works - "aplay" works straight away for playing back a wave

file. (I might as well mention that the build quality is a bit ropey:

the headphone jack doesn't quite stay plugged in properly, and nor

does the power cable extension that came with it.) Now for jackd and

friends...
I installed jackd 0.116.1 from the official repo (BTW, the official

binary package for this platform doesn't have alsa enabled -- I did

"apt-get source jackd" then manually built it with alsa enabled). I

installed supercollider from the latest git. Supercollider can do an

offline render of a wave file, and aplay can play it back. But I can't

seem to get any audio from a jackd-based pipeline: neither using

supercollider, nor using "jack.play" from Rohan Drape's tools.

(jackd doesn't report any problems: . I'm

not familiar with oss at all but jackd fails to start when using it:

)
So, questions:

* How to troubleshoot the jackd setup over a pure-CLI connection? I

could use GUI tools over X forwarding, but given the smallness of the

box I'd prefer to avoid installing GUI libraries etc. A commandline

jack-level-meter would be nice, if anyone knows of one, to verify that

sound is reaching jackd from its clients.

* Have you got jackd working nicely on similar systems (Linux ubuntu

2.6.33.6 #1 PREEMPT Tue Feb 8 03:18:41 EST 2011 armv5tel GNU/Linux),

and have any tips?
Thanks

Dan

--

http://www.mcld.co.uk

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