On Mon, Dec 29, 2008 at 11:24 AM, Stephen Nesbitt <stephen_nesbitt@xxxxxxxxxxxxxx> wrote: > All: > > In this maillist I have seen a lot of warning that realtime is broken in > Intrepid. Ok that's understandable if not wonderful :-) > > But the question is then if one is running Intrepid what is the proper setup? > I'm looking for something like "The (almost) Perfect Sound Recording Setup > for Ubuntu Intrepid Ibex". This is information I haven't seen and given the > number of questions in reference to Intrepid being asked on this list, one > that might be valuable. > > The fundamental requirement is that one is running Intrepid as one's main > system. Replacing Intrepid with Hardy is not an option. > > Here are some possibilities that have crossed my mind: > 1) Setup a dual boot Hardy/Intrepid system - doable but a pain because of 1) > the need to reboot and 2) the potential loss of access to one's standard home > directory, tools, email and system configuration. > > 2) Use Intrepid despite not having access to a realtime kernel. In this case > information on realistic expectations on latency, how to best configure Jack to > limit xruns, etc would be very nice. In other words, can Intrepid even be used > as a base for music recording and what are the gotchas (if any)? > I'm stuck on non-realtime Intrepid (my motherboard + embedded Intel graphics card are new enough to require 2.6.27), so I can give you one data point: with a USB soundcard and -n 3 -p 512, I get at most a few xruns per hour. Disabling cpu frequency scaling helped a lot, as has avoiding high cpu usage. It's not good enough for click-free recording, but it's reasonable for live performance. (I tried the ubuntu 2.6.27-rt package, but it was broken for me in many ways. YMMV of course.) > 3) Run Hardy based studio as a guest OS in vmware or VirtualBox. I don't even > know if this is possible? What does it mean to run a guest OS in a realtime > environment when the host is not? And even if that isn't a problem, how does > one configure the sound system? For instance how do I get the guest system to > recognize my Delta 44 card? Or PulseAudio? > > Thanks in advance! > > -steve -- Jacob Lee artdent@xxxxxxxxx _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
