[Ardour-Users] Xrun Counter in Ardour vs. Qjackctl

[Tim]

Hi Robin,

thank you. So this doesn't seem to be a real problem as long as not doing love mixing or recording tracks?

I'm playing around with my Lenovo T420 with RME Digiface via Expresscard 34 HDSPe. I'm using CentOS with realtime kernel.

So what should I try to achieve? Zero xruns in qjackctl or in Ardour?

Regards
Tim

Am 29. Februar 2020 23:13:51 MEZ schrieb Robin Gareus <robin at gareus.org>:
>On 2/29/20 10:59 PM, Tim wrote:
>> Hello,
>> 
>> can someone explain why Ardour shows up xruns (26 last time)  but
>qjackctl doesn't show any xrun. I also haven't heard any crackle or
>something which could occur with an xrun.
>> 
>> I activated xrun display in the upper right status bar where stats
>are shown.
>
>When you perform operations in Ardour that are not realtime safe Ardour
>skips processing, but does not interfere with other JACK applications.
>
>
>When Ardour ignores input and produces silence as output Ardour's x-run
>counter is increased. Examples include adding or removing tracks
>(really
>adding I/O ports), loading plugins that change I/O configurations, etc.
>
>You'd only hear a artifacts if you play-back while performing this
>action, or use Ardour for live mixing.
>
>Ardour intentionally leaves JACK alone in this case, so that other JACK
>apps can continue processing. So JACK won't see any buffer over/under
>runs.
>
>Cheers!
>robin
>
>
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