27 Mar
2011
27 Mar
'11
5:02 p.m.
On Sunday 27 March 2011 15:21:42 Peder Hedlund wrote:
Quoting Dominic Sacré <dominic.sacre(a)gmx.de>de>:
Jacks uses one system-sample-clock. And all sound-devices then have to use
that as well. Doesn't matter whether one device is only playback or only
recording. All hardware-sample-clocks have to be synchronized unless you want
to use alsa_in (or alsa_out) and have automatic resampling inserted into the
chain. And if you want good quality, you don't want resampling. At least you
don't want it added automatically without control...
Have fun,
Arnold
More importantly, you can only use two sound
cards with JACK at the
same time if their sample clocks are synchronized.
Are you sure this applies to using different cards for recording and
playback? I assumed it mostly mattered when trying to record from multiple
cards (not that I have ever tried any of the scenarios :) .