I will do that later tonight when I boot the udoo and pull my run scripts off of it. I'll post everything to GitHub so we can share resources.
On Mar 12, 2014, at 5:44 AM, Jamie Bullock <ja...@jamiebullock.com> wrote: > > Hi Dan, > > Thanks for sharing these notes. They arrived in my inbox to coincide nicely > with the delivery of my quad Udoo this morning! It would be great to see a > full writeup of your Udoo setup at some point as I think many people will > want to be doing a similar thing. > > All best, > > Jamie > > > On 11 Mar 2014, at 14:14, Dan Wilcox <danomat...@gmail.com> wrote: > >> Heres a trim of my notes: >> >> Enable realtime audio priority (if you haven't done it already): >> >> sudo su -c 'echo @audio - rtprio 99 >> /etc/security/limits.conf' >> sudo su -c 'echo @audio - memlock 250000 >> /etc/security/limits.conf' >> sudo su -c 'echo @audio - nice -10 >> /etc/security/limits.conf' >> >> I disable pulseaudio. Make sure pulseaudio does not respawn itself (from >> http://voices.canonical.com/david.henningsson/2012/07/13/top-five-wrong-ways-to-fix-your-audio): >> >> echo autospawn=no > ~/.pulse/client.conf >> >> Also add the following to ~/.bash_login to kill pulse audio if it's running >> on login: >> >> # kill pulse audio if it was spawned >> pulseaudio -k >> >> I'm not looking at the udoo run script, but I'm pretty sure I'm using the >> following with the US-25EX USB soudcard: >> >> pd -rt -nogui -alsa -audiodev 5 >> >> Use pd -listdev to get the device list from alsa. I chose 5 as the first 4 >> (from memory) are 1-2 (built in hardware & plugin) & 2-3 (HDMI audio >> hardware & plugin). 5 is the USB hardware alsa dev. >> >> On Mar 11, 2014, at 4:05 AM, Simon Iten <itensi...@gmail.com> wrote: >> >>> without jack i should add... >>> On 11 Mar 2014, at 08:55, Simon Iten <itensi...@gmail.com> wrote: >>> >>>> hey dan, >>>> >>>> unfortunately i’m in switzerland :-) >>>> >>>> would be great if you could post your setup somewhere or send the infos! i >>>> compiled pd from source as well. i start it from console (with -rt) and it >>>> works without problems with the builtin sound card. maybe the cheap card >>>> from dx.com just does not work properly with udoo. >>>> but please post your setup. >>>> >>>> thanks >>>> >>>> On 09 Mar 2014, at 22:26, Dan Wilcox <danomat...@gmail.com> wrote: >>>> >>>>> I've tried my both Roland Edirol UA-25 & UA-25EX and both work great. The >>>>> dedicated USB controller makes these guys work as compared to an RPI >>>>> where I can't get full duplex without tons of dropouts. I'm using a >>>>> Linaro install which boots to the console and runs the PD through >>>>> scripting. The speed is great as compared to my old wearable computer. 4 >>>>> cores makes a difference. >>>>> >>>>> I had to recompile my kernel to add midi support, but that's working >>>>> great. It's not too bad, actually. I also built Pd-vanilal from source >>>>> which was pretty easy using ./configure + make. I also have a script >>>>> which fetches externals and builds/installs the agains vanilla so I have >>>>> the few externals I need. >>>>> >>>>> As with my previous experience running Pd + embedded Ubuntu, I get great >>>>> performance with RT permissions, the -rt startup flag, and ALSA. Jack is >>>>> needless overheard unless you want to work with other Jack-enabeld apps. >>>>> Same with X windows, although my setup was running great in X with pd + >>>>> ALSA in testing. >>>>> >>>>> From your description, it sounds like your main issue is jack & pd are >>>>> probably not running in realtime. >>>>> >>>>> I can sent you my install notes if you want (or put them online, as I've >>>>> been meaning to). Also, are based in the NE within driving distance to >>>>> Pittsburgh? We could do a patching circle/UDOO setup afternoon :D >>>>> >>>>> On Mar 9, 2014, at 5:14 PM, pd-list-requ...@iem.at wrote: >>>>> >>>>>> From: Miller Puckette <m...@ucsd.edu> >>>>>> Subject: Re: [PD] udoo board sound issues >>>>>> Date: March 9, 2014 at 5:07:54 PM EDT >>>>>> To: Simon Iten <itensi...@gmail.com> >>>>>> Cc: PD list <pd-list@iem.at> >>>>>> >>>>>> >>>>>> H iSimon - >>>>>> >>>>>> I haven't tried any but the built-in yet but I have a few USB interfaces >>>>>> around here that I can try. I'm about to go on an intense trip but >>>>>> should >>>>>> be able to do some tests when I get back, assuming nobody else has >>>>>> figured >>>>>> this out first. >>>>>> >>>>>> cheers >>>>>> Miller >>>>>> >>>>>> On Sun, Mar 09, 2014 at 09:57:45PM +0100, Simon Iten wrote: >>>>>>> hey list, >>>>>>> >>>>>>> does anybody that uses an udoo board have any recommendations on a >>>>>>> usb-soundcard? should be very compact. >>>>>>> i tried a cheap one from dx and i could not get any good results (loads >>>>>>> of xruns even with periods 3 and 1024 and up frames in qjackctl) this >>>>>>> is on the ubuntu version from udoo. >>>>>>> are there some tweaks i can do to improve usb-sound capabilities? i >>>>>>> thought maybe recompile the kernel with only usb-1 support since there >>>>>>> is no option as on the pi to disable usb-2 via config, or am i missing >>>>>>> something? >>>>>>> is it better to use the usb-soundcard without jack (pd does not like >>>>>>> the usb-soundcard either when i tried briefly)? >>>>>>> >>>>>>> the internal sound-input is to noisy for my application (guitar effect) >>>>>>> >>>>>>> cheers. >>>>>>> _______________________________________________ >>>>>>> Pd-list@iem.at mailing list >>>>>>> UNSUBSCRIBE and account-management -> >>>>>>> http://lists.puredata.info/listinfo/pd-list >>>>> >>>>> -------- >>>>> Dan Wilcox >>>>> @danomatika >>>>> danomatika.com >>>>> robotcowboy.com >>>>> >>>>> >>>>> >>>>> >>>>> >>>> >>> >> >> -------- >> 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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