On Thursday 15 September 2011 01:06:13 Fons Adriaensen wrote: > On Thu, Sep 15, 2011 at 12:48:39AM +0200, Dominic Sacré wrote: > > 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 material. > > > > 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? > > If you can't decrease the period size, the the only option > is do the monitoring *for the new tracks being recorded* > in hardware, using either a 'real' mixer or the one that > may be provided by your sound card. If you have RME gear > hdspmixer is the solution - this use case is why it exists. The sound cards are a pair of M-Audio Delta 1010, and their hardware monitoring capabilities are quite limited. We used to have a 'real' 24-channel mixer for all our monitoring, but decided to basically replace it with a PC running JACK, which is not just cheaper, but also much more flexible. And the whole setup actually worked surprisingly well until now... A very small hardware mixer just for monitoring the tracks being recorded is an interesting idea... > The latest Ardour 2 should take care of latencies - see > Paul's post of today. Thanks for mentioning this, I probably would have missed it otherwise. I *think* latency correction worked correctly for me in Ardour 2.8.11, but I'll definitely give the latest SVN a try. Cheers, Dominic _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
