[PD] udoo board sound issues

Mon Mar 24 22:01:06 CET 2014

nevermind, found the solution. here it is..

http://lists.puredata.info/pipermail/pd-list/2012-09/097892.html

cheers

On Mon, Mar 24, 2014 at 2:43 PM, Simon Iten <itensimon at gmail.com> wrote:

> hey dan and list,
>
> i gave pd on the debian hardfloat image a try and can not run it. it
> compiles just fine. this is what i get on the console...
>
> debian at udoo-debian-hfp:~$ pd -verbose
> Pd-0.45.4 ("") compiled 14:17:43 Mar 24 2014
> port 5400
> TCL_LIBRARY="/usr/local/lib/pd/lib/tcl/library"
> TK_LIBRARY="/usr/local/lib/pd/lib/tk/library"   wish
> "/usr/local/lib/pd/tcl//pd-gui.tcl" 5400
> Waiting for connection request...
> /usr/local/lib/pd/bin/pd-watchdog
> watchdog: signaling pd...
> watchdog: signaling pd...
> watchdog: signaling pd...
> watchdog: signaling pd...
> watchdog: signaling pd...
>
>
>
> then a watchdog-signaling loop...
>
> this also happens with the version installed via synaptic.
>
> any thoughts?
>
> cheers
>
>
> On Sat, Mar 15, 2014 at 4:50 PM, Dan Wilcox <danomatika at gmail.com> wrote:
>
>> Yeah, I wanted to use the hard float image but I was under time pressure
>> and more things seemed to work out of the box with the Linaro one. I'll
>> have more time to revisit it later.
>>
>> On Mar 15, 2014, at 12:46 PM, Simon Iten <itensimon at gmail.com> wrote:
>>
>> hmm,
>>
>> well to me 12ms is way to much. but then again i play a lot of fast
>> attack notes in up-tempo pieces :-)
>>
>> thanks for your notes anyway, they helped a lot! and write back when you
>> tried with the debian hardfloat image. i tried it for a short time and it
>> was not very stable with pd. but then again i did not try a lot of things
>> to fix this.
>>
>> cheers
>> On 15 Mar 2014, at 13:10, Dan Wilcox <danomatika at gmail.com> wrote:
>>
>> Check this page:
>> http://www.michalkaszczyszyn.com/en/tutorials/latency.html#acceptable
>>
>> I was wrong, the guitar to amp latency at 1 meter away is roughly 3 ms.
>>
>> The accumulation of a monitors and an effect or two gets you to 8ms.
>> Acceptable latency is 12 ms.
>>
>> Again, I haven't measured my rig or the latency of my old wearable rig,
>> both both were responsive to me, so they must e at least around 12 ms.
>>
>> Sorry for being unscientific about it.
>>
>> enohp ym morf tnes
>> --------------
>> Dan Wilcox
>> danomatika.com
>> robotcowboy.com
>>
>> On Mar 15, 2014, at 5:49 AM, Simon Iten <itensimon at gmail.com> wrote:
>>
>> dan, no 15 ms is in no way tolerable for live use (if you have effects
>> that should react in realtime) it is of course ok for delay and reverb
>> stuff. the latency from an amp because of cable length and stuff is totally
>> different, since your ear actually hears where the sound comes from and can
>> adapt.
>> but for studio use for example, 15 ms on a headphone is really two
>> attacks for evey attack. heck even 10ms is evil :-) of course your/anyones
>> mileage may vary. but i only wanted the box to output delay and reverb
>> soundscape stuff away, so i might be good. i will add analog circuitry that
>> mixes the dry and effect part of the signal, so i get no (very very little)
>> latency on the unaffected part of the signal.
>>
>> no worries as far as the script goes. i had no problems at all to follow
>> it. but i worked with linux a lot before. i was just suggesting, that the
>> typical ubuntu user would not get some of the steps in between your steps
>> :-)
>>
>>
>> On 15 Mar 2014, at 02:10, Dan Wilcox <danomatika at gmail.com> wrote:
>>
>> I haven't run any latency tests, so that might be what I'm getting. If
>> so, it's acceptable for what I do. From what I've read, guitar -> effects
>> -> amp latencies are already closer to 20ms.
>>
>> Sorry I haven't gotten back to the UDOO and pulled the relevant scripts
>> etc off of it yet. I'm trying to get a few things done before I head out of
>> town for work the next 2 weeks. I might be abel to get to it Sunday, but no
>> promises.
>>
>> On Mar 14, 2014, at 8:41 PM, Simon Iten <itensimon at gmail.com> wrote:
>>
>> hi dan,
>>
>> tried your setup/instructions. thanks, it now works down to 15ms. at 12ms
>> i start to get clicks here and there...
>>
>> your script has some "errors" (missing instructions a novice would not
>> understand how to deal with). do you want me to post them, or do you overdo
>> it anyway?
>>
>> thanks again
>>
>> simon
>>
>> On 13 Mar 2014, at 05:21, Dan Wilcox <danomatika at gmail.com> wrote:
>>
>> Thanks. I was just waiting to redo my website, edit the video, put the
>> pics together, etc etc but life and freelance work get in the way. Man, I
>> could use a clone right about now :P
>>
>> On Mar 13, 2014, at 12:19 AM, Richie Cyngler <glitchpop at gmail.com> wrote:
>>
>> Also interested in the UDOO setup instructions so thank you. A bit OT
>> but, Dan, love your work (that "onward to mars patch" is awesome) thanks
>> for the links. I think people should post more of this sort of thing to the
>> list, celebrate what we make. =)
>>
>>
>> On Thu, Mar 13, 2014 at 11:09 AM, Dan Wilcox <danomatika at gmail.com>
>> wrote:
>>
>>> FWIW: here's a picture of my UDOO setup inside my Mars space suit
>>> backpack: http://www.flickr.com/photos/danomatika/13115604285/
>>>
>>> Media of the backpack in use
>>> https://twitter.com/danomatika/status/433273394122207232/photo/1 &
>>> https://vimeo.com/86670103 (not my video, I'll put out a different edit
>>> soon)
>>>
>>> On Mar 12, 2014, at 10:28 AM, Dan Wilcox <danomatika at gmail.com> wrote:
>>>
>>> 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 <jamie at 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 <danomatika at 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 <itensimon at gmail.com> wrote:
>>>
>>> without jack i should add...
>>> On 11 Mar 2014, at 08:55, Simon Iten <itensimon at 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 <danomatika at 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-request at iem.at wrote:
>>>
>>> *From: *Miller Puckette <msp at ucsd.edu>
>>>  *Subject: **Re: [PD] udoo board sound issues*
>>> *Date: *March 9, 2014 at 5:07:54 PM EDT
>>> *To: *Simon Iten <itensimon at gmail.com>
>>>  *Cc: *PD list <pd-list at 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 at 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 at 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 at iem.at mailing list
>>> UNSUBSCRIBE and account-management ->
>>> http://lists.puredata.info/listinfo/pd-list
>>>
>>>
>>
>>
>> --
>> Richie
>>
>> www.glitchpop.com
>>
>>
>>  --------
>> Dan Wilcox
>> @danomatika
>> danomatika.com
>> robotcowboy.com
>>
>>
>>
>>
>>
>> _______________________________________________
>> Pd-list at 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
>>
>>
>>
>>
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20140324/507eec9d/attachment-0001.htm>