25 Sep
2008
25 Sep
'08
8 a.m.
porl sheean wrote:
a while ago i purchased a focusrite saffire pro 26io.
it has finally
come to a point where it is quite reliably useful as an interface for
jack/ardour (the latency isn't brilliant, but i'm pretty sure that is
the fault of my firewire chipset).
I fixed latency for ffado yesterday, and at
least one person reports
3x32 as working for him. So if you have a good firewire chipset, you
will also be able to achieve this. But maybe wait for beta7.
i found out recently that unfortunately, in order to get teh device
working as a basic 'summing mixer' for live work (i wanted to
essentially use it as a basic 8 in 1 out preamp to send to a small
desk at a venue) it needs to be set in 'streaming mode'. i can get
this working by starting jack and just leaving that running, but i was
wondering if anyone knew of an easier way (maybe one of ffado's
command line utilities? there seem to be a lot in there and i don't
know what half of them do). if not, would it be difficult to write a
small app that basically just 'turns on streaming'? or should i just
keep using jack? (i am hesitant to do this as i have still had a few
issues with dropouts, and as you can imagine at a live performance
this could be a problem).
The fact that streaming has to be turned on is a design decision of
Focusrite. We can't change that.
I don't see why you wouldn't use jack. What's the point in using a
separate application that basically does the same? Just run jack with a
large period size, and you should be fine. Something along the lines of:
jackd -R -d firewire -p2048 -n4
should work fine. I've done multi-hour recordings with the pro26 at
3x1024 without any problem whatsoever.
Greets,
Pieter
PS: Most of the command line tools in the ffado repository are test or
debug tools.