I'm having good results from using a much leaner install - it's called Mobius: http://moebiuslinux.sourceforge.net/
Obviously depends on your usage but I'm ssh'ing into the pi and works great. The minimal install seems to help with overclocking too so I reckon I'm getting about another 35-40% out of the pi. The main project I've been working on has a pmpd patch that the regular raspbian wouldn't even run, on top of that I'm driving a couple of sensors (thanks Martin:), audio synthesis, got a reasonably complex quad spacialisation patch (thanks Lorenzo:) and is driving a 6 channel soundcard. This is without the usb-slowdown option. Obviously it's pushing the Pi right up to the limit but it runs* just*about stably. What I do think made a significant difference was switching the power cable to one that outputs 5.2v so by the time it gets to the pi it's a solid 5v. Julian On 3 July 2013 09:42, Dan Wilcox <danomat...@gmail.com> wrote: > Yeah I tried that out a few months ago when we started the thread. Jack > adds some unnecessary overhead in my opinion and I'm surprised that a > device that should be more than capable to handle this is just not setup > correctly. I'm running a minimal commandline install and pd + realtime & > straight alsa should work great ... it has for me in the past. > > His jack setup basically uses *all* the cpu of the pi, so that cuts out > the other parts of my setup altogether .. visual, device input, etc. Again, > I was able to get good latency with a much lower resource machine (until it > just wore out), so it *should* be possible. > On Jul 3, 2013, at 4:35 AM, Julian Brooks <jbee...@gmail.com> wrote: > > Hey Dan, > > Jeremy (autostatic), who setup the 'rpi and low latency, real time audio' > thread has a UA-25 and seems to have full duplex working with jack (this > was before the recent tweaks as well): > > http://www.raspberrypi.org/phpBB3/viewtopic.php?p=286222&sid=85c8b0a7cca69e35dcafaf58ff916eec#p286222 > > Could be worth asking him? > > Julian > > > On 3 July 2013 02:58, Dan Wilcox <danomat...@gmail.com> wrote: > >> Yeah I tried the latest firmware with my Raspbian install and still have >> issues with my UA-25. Full stereo duplex = dropouts. :( >> >> On Jul 2, 2013, at 5:52 PM, pd-list-requ...@iem.at wrote: >> >> *From: *Pierre Massat <pimas...@gmail.com> >> *Subject: **Re: [PD] Raspberry Pi USB2 audio fixed (apparently)* >> *Date: *July 2, 2013 3:52:31 PM EDT >> *To: *Julian Brooks <jbee...@gmail.com> >> *Cc: *PD List <pd-list@iem.at> >> >> >> Hi all, >> >> I did a fresh install of Raspbian using the NOOBS installer. The >> pd-extended package from puredata.info doesn't work with my soundcard >> (it wasn't working before). And Pd vanilla installed from the Raspbian >> repositories doesn't work with it either (although it was working fine >> before). My soundcard is an old EMU 0404 USB. By "doesn't work" I mean that >> it either throws an "Audio stuck/closing audio" error, or simply freezes >> everything (Pd, LXDE, mouse, everything) and all I can do is unplug the >> power chord. >> >> So for me not only did it not fix anything, but i'm actually worse off >> and left with the inability to use Pd at all on my Pi. >> >> I haven't tried Miller's compiled version of Vanilla yet (I still don't >> know how it is different from the one available in the Raspbian repos). The >> recent Planet CCRMA Satelite for the RPi is also an option. >> >> Pierre. >> >> >> -------- >> Dan Wilcox >> @danomatika >> danomatika.com >> robotcowboy.com >> >> >> >> >> >> >> _______________________________________________ >> Pd-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list >> >> > > -------- > Dan Wilcox > @danomatika > danomatika.com > robotcowboy.com > > > > > >
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