An (easier) alternative is to use zita-j2a (zita-a2j for input), I'm
surprised that's not even mentioned on that page. It takes care of the
resampling when clocks drift.
On 10.06.21 11:35, Alf Haakon Pietruszka Lund wrote:
Hello list!
I am on (K)Ubuntu Studio 20.04) and needed a couple of extra in- and
outputs, so I connected 2 USB audio interfaces to my computer (a
FocusRite Scarlett 2i4 and an Edirol UA-25ex - they're old, but reliable
devices).
Through Studio Controls I set the Scarlett as master device and started
Jack, then I experienced recording and playback with Ardour in (as far
as I can hear) perfect sync.
I was amazed at the ease of this setup and the problem-free routing of
audio signals, so just for testing I split a stereo source recording one
channel on each device to one stereo track in Ardour. To my ears, the
sync is still perfect.
However, from this article
https://jackaudio.org/faq/multiple_devices.html it seems I have to
expect sync problems over time unless I do some manual configuring using
the alsa_in and alsa_out clients.
Is this still valid?
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