On Tue, March 26, 2019 11:52 am, liebrecht(a)grossmann-venter.com wrote:
The problem now is... how to verify that jack actually
routes the inputs
of the 1818vsl properly.
What method will you use to connect jack ports to applications? I find
qjackctl most convenient, but since you have decided that application is
not for you, will you use mixbus, jack_connect, or something else?
Have you checked here for something useful?
jackrec is useful and relatively easy to use:
jackrec -f filename -d seconds [ -b bitdepth ] port1 [ port2 ... ]
Ebumeter can provide visual indication of source level:
Jack and ALSA audio analyzer (JAAA) can provide simple test instrument
Keep in mind that if you want to use the S/PDIF input of your interface
you will have to change the clock source to S/PDIF input. Your output of
lsusb previously posted showed that the interface was using internal
clock, not S/PDIF clock. If you enable S/PDIF as the clock source you
will need to keep a digital input always running to the interface to
provide the clock.