9 May
2005
9 May
'05
8:21 p.m.
On Mon, 09 May 2005 10:16:43 -0500
Jan Depner <eviltwin69(a)cableone.net> wrote:
You're supposed to be able to connect the
1010s together. There was
a thread on the list a while back about doing that but I don't remember
what the result was.
I was wondering for a while about this. While it is possible to
synchronize the sample clocks of these cards probably by either sp/dif
or by wordclock, i do not know if this synchronizes interrupts, though.
I don't even know if ALSA has a mechanism to start two devices at the
same time (or as close as possible).
I suppose that when opening and starting a "multi" pcm device, the two
devices are started closely in time. How close is an interesting
question. So it's probably a matter of luck, but once started ok, it
might work very well.
I would love to be proved wrong though :)
The other question is: How well does jack for example work with a multi
pcm device? Could the userspace nature of pcm plugins possibly interfere
with the low latency requirements? Does it "inherit" the SCHED_FIFO
scheduling of jackd (in case it was started with -R)? What about
mmap'ing and additional latencies?
Flo
--
Palimm Palimm!
http://affenbande.org/~tapas/