Hi Julian, This Moebius distro looks very interesting. Can you please tell us how you installed Pd ? From the Raspbian repos ? Have you tried it with full duplex with your soundcard yet ? What latency are you getting (I can't get below 15 ms in Raspbian with some fft in my patch) ?
Also is this think about the power supply true ? They mention it too on the Satellite CCRMA webpage. Where can I buy a power cable that outputs 5.2 V ? I'm currently using a samsung smartphone charger. That's a lot of questions but you made me curious (and hopeful again) ! Cheers, Pierre. 2013/7/3 Julian Brooks <jbee...@gmail.com> > 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 >> >> >> >> >> >> > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > >
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