[LAU] JACK clients at different period sizes

Dominic Sacré dominic.sacre at gmx.de
Wed Sep 14 22:48:39 UTC 2011


I have a medium-sized Ardour session with a couple of plugins on most 
tracks, in which I'd like to record some additional tracks. Due to the 
number of tracks and plugins, it's not possible to run Ardour/JACK at 
very low latencies.

The same machine (and the same sound cards) is also used for monitoring 
for the whole band, using a huge instance of JackMix. This needs to be 
run with as little latency as possible (128 frames per period, tops).

How can I solve this dilemma? Ardour's latency doesn't really matter to 
me, as long as newly recorded regions are properly aligned with existing 

It might also be an option to run Ardour on a different machine via 
netjack, but as far as I can see the period size of a netjack slave is 
tied to that of the netjack master. It also seems doubtful that Ardour 
would be able to do correct latency compensation in this scenario...

Any suggestions? Is there any way to run run a second, high-latency JACK 
server piggy-back on a low-latency server?



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