JackOfAll wrote: 
> Hmmm. Not too sure about a 3.10.30 kernel. From a CS point of view with
> the Wandboard, (Cubox-i is imx6, right?), I can vouch for the Freescale
> vendor 3.0.35 kernel and recent mainline as far as USB goes.I mentioned that 
> I have a build of Volumio that exhibits the sonically
identical symption, assuming I don't over sample? Well I popped the
microSD with that into the Cubox-I, and it's 3.0.35. So I can say with
reasonable certainty, that this problem extends back that far - with
this particular hardware. This problem is not unique to 3.10.X.

JackOfAll wrote: 
> And ISTR that when someone did have issues with the Dragonfly and
> Wandboard they were solved with a hub.A Google did not produce any results 
> for "Wanderboard DragonFly". So all
I can say is maybe that is due to people setting the Wanderboard's
volume too high? Audioquest is quite specific about setting the volume
to 100% on the app supplying the tunes (Squeezelite in this case), and
controlling the volume at the OS level, starting around 25%. And hubs
somehow appear to "fix" that. Though other than on an iPhone, that's the
first I've ever read of a hub being required. Lot's and lots of people
using these on lots of platforms without a hub.

JackOfAll wrote: 
> Have you checked dmesg? Anything there related to USB? Maybe an error
> corresponding with the click/pop?Great suggestion. Thank you. I can say that 
> no new messages pop up after
a click/pop. But I don't have the knowledge to know whether there are
other clues from dmesg. If you are interested in looking, here are links
to the dmesg output after playing a FLC with pop/click/crackle on
'Squeezelite' (http://www.colley.org/images/squeezelite-dmesg.txt), and
also on 'Volumio' (http://www.colley.org/images/volumio-dmesg.txt).

Triode wrote: 
> The problem you describe sounds like the feedback mechanism not working
> - you can diagnose this by looking at /proc/asound/<card>/stream0 while
> it is running and checking that the Momentary freq is changing while
> playing (it should vary on repeated cats of that file around the nominal
> frequency).  If this is not happening then there is something wrong with
> the way the asych mechanism is working.If I was doing this correctly - 
> repeated cats every second or so -
showed no changes in the Momentary Frequency, which remained a steady
44100 - even right before/after pop/crackles. So that's NOT what I was
supposed to see?

Thanks again. I don't want this to get OT. But if knowing how
Squeezelite responds to such a problem is of value here, I'd love your
thoughts. Thanks.


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