Looks like it is a driver issue in the kernel preventing duplex audio with the onboard sgtl5000. I'm about to rebuild the kernel to test.
On Mon, Sep 23, 2013 at 2:25 AM, IOhannes m zmölnig zmoelnig@iem.at wrote:
On 09/22/13 21:00, Chris Clepper wrote:
I've got a Wandboard* here for some testing and I can't get Alsa to work
in
duplex. Testing with arecord produces a soundfile and aplay plays it
back.
But starting Pd with Alsa or jack gives the dreaded errors about the resource being in use.
i did some tests with the wandboard and an external USB soundcard, and i *never* managed to get jackd running stable for "longer" (the project required that audio would work for days and weeks without restart). so i ended up using a complicated (compared to jack) plugin system based on ALSA. it turned out that the timing on the wandboard is much too imprecise for jack (and the connected cheapo USB-soundcard did not help)
obviously this is not the problem you are facing here (as i did get full duplex sound), but maybe this info is of some other use...
fgmasdr IOhannes
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