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

[Robin Gareus]

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