porl sheean wrote: > thanks for the reply Pieter. > > after sending you the message i realised how stupid i waws regarding > jack. i was thinking that the latency had to be low so that the live > output wouldn't be too delayed, but completely forgot the whole point > of the 'input mix' part :P > > you are of course right - i can set a high buffer in jack for any > recording and to just have the device streaming, but the input mix > should still be virtually 0 latency. i need someone to smack me in the > head :) > > on a side note, i have in the past had trouble getting the input mix > to output anything (i could only get outputs from the pc channels, not > input mix), but i don't have the ability to test it right now so i > will assume i was just doing something else silly. The input mix support for the pro26 might be broken, I still have to look into that. Might take some time, might also be fixed fairly soon. Can you please try the current branches/libffado-2.0 version to see what part of the mixer works and what doesn't? > > porl > > ps. what does the 'mixing/tracking' toggle do? i couldn't notice any > difference last time i checked. To be honest: I don't know. It's a control that is present because it's also present in the win/mac mixer, but I haven't figured out what exactly it does. AFAIK it has something to do with the standalone operation of the device. It should be in the manual Focusrite provides. Greets, Pieter > > pps. looking forward to getting a chance to test the new low latency > of ffado! :) > > 2008/9/25 Pieter Palmers <pieterp@xxxxxxx>: >> 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. >> > _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
