[PD] alsa and jack on ARM/Wandbaord

IOhannes m zmölnig zmoelnig at iem.at
Mon Sep 23 08:25:05 CEST 2013

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...


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