Pd-list September 2009

pd-list@lists.iem.at

137 participants
191 discussions

'apple' lib for controlling hardware and getting sensor data
by Hans-Christoph Steiner 15 Nov '09

15 Nov '09

Hey, I just finished of a quick library of functions for controlling some of the hardware features on Apple computers when running under Mac OS X. So far, I have been able to control the screen brightness; control the keyboard backlight brightness and fade time; get data from the "sudden motion sensor" or built-in accelerometer; and get data from the built-in light sensors. It's included in the nightly builds as the 'apple' library, check 5.reference -> apple in the Help Browser for help patches. Also, this should be pretty easy to do for other computers. For example, the Thinkpad features are pretty well documented under Windows and GNU/Linux: http://www.almaden.ibm.com/cs/people/marksmith/tpaps.html http://www-128.ibm.com/developerworks/linux/library/l-knockage.html http://www.almaden.ibm.com/cs/people/marksmith/sdl.html http://www.gnome.org/~fherrera/gtollina.c Or for Apple hardware, there is pbbuttonsd: http://pbbuttons.berlios.de/ .hc ------------------------------------------------------------------------ ---- ¡El pueblo unido jamás será vencido!

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pd_opencv 0.2-rc4
by ydegoyon＠gmail.com 22 Oct '09

22 Oct '09

ola, after a week of intensive workshop in baltan laboratories ( http://www.baltanlaboratories.org/ ), we released a new version of OpenCV for PD, version 0.2-rc4 that fixes the following issues : ###################################################### version 0.2-rc4 ( codename BALTANIK ) * fixed colorspace problems for mac ppc * contours detection objects ( hu_compare and pgh_compare ) now give the posititon of matching contours. * a folder of examples have been added, they should work with pd-extended. ###################################################### you can find binaries for mac osx and linux packages on the wiki as well as the source code ( for those who want to compile it ) here : http://www.hangar.org/wikis/lab/doku.php?id=start:puredata_opencv some videos of the workshop have been published here : http://giss.tv/dmmdb/index.php?channel=pdopencv well, lluis mainly fixed the problems while i was at the coffee shop, but it's time to go back there .... ciao, sevy

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Re: [PD] Pd at a livecoding event on the BBC
by Daniel Wilcox 11 Oct '09

11 Oct '09

On Aug 31, 2009, at 12:00 PM, pd-list-request(a)iem.at wrote: > Hi *, > > This is pretty funny. Some people from the BBC came along to a live- > coding > event in London: > <http://news.bbc.co.uk/1/hi/technology/8221235.stm> > I was using Pd, which you can see in some of the shots. It was my > first time > live-coding and it sounded awful like 8-bit alley cats on LSD > singing Bob > Dylan. Oh man : "Making boring techno music is really easy with modern tools," he says, "but with live coding, boring techno is much harder." Nice. -------- Dan Wilcox danomatika.com robotcowboy.com

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Re: [PD] "computer music" WAS: Re: Pd at a livecoding event on the BBC
by Fernando Gadea 07 Oct '09

07 Oct '09

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Call for expository/teaching projects for potential cultural schedule after april 2010 near Barcelona
by donotreply 07 Oct '09

07 Oct '09

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Re: [PD] Pduino 0.5/Firmata 2.1 beta release
by Hans-Christoph Steiner 05 Oct '09

05 Oct '09

I haven't had a chance to try it on the Mega yet. Do you use the Mega? If so, I need testers for it. .hc On Jul 10, 2009, at 7:59 AM, Jose Luis Santorcuato wrote: > Hans, hi, Arduino mega have 12 inputs, firmata and pduino have > these???? > Best regards > > José > > > > > 2009/7/10 Hans-Christoph Steiner <hans(a)at.or.at> > > http://at.or.at/hans/pd/objects.html#pduino > > There are some nice updates to Firmata and Pduino. This release > mostly adds extensions to the protocol to support more pin modes and > their respective messages (Servo, I2C, Shift Registers, etc). Here > are some specifics: > > - Servo support for StandardFirmata > - support for using analog pins as digital I/Os for StandardFirmata > - new message to set the poll rate of StandardFirmata > - I2C Firmata example (needs Pd implementation) > - switch back to 57600 for standard bitrate > - made Firmata.begin(57600) explicit in all examples > > Please test and report and bugs or issues. We are trying to get > this included in the upcoming Arduino 0017 release. Depending on > the 0017 release schedule, we might be able to squeeze in Shift > Register/Matrix support too. Also, just to note, this update > includes code from (in alphabetical order): > > Ayah Bdeir > Erik Sjodin > Hans-Christoph Steiner > Jeff Hoefs > Shigeru Kobayashi > Zach Lieberman > > (I hope I didn't forget anyone, let me know if I did). > > .hc > > > ---------------------------------------------------------------------------- > > "It is convenient to imagine a power beyond us because that means we > don't have to examine our own lives.", from "The Idols of > Environmentalism", by Curtis White > > > > > > _______________________________________________ > Pd-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list > > > > -- > http://www.chilemigra.cl > http://arselectronicachile.blogspot.com > http://www.myspace.com/santorcuato > > ---------------------------------------------------------------------------- I spent 33 years and four months in active military service and during that period I spent most of my time as a high class muscle man for Big Business, for Wall Street and the bankers. - General Smedley Butler

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Ubuntu. PD, Pulseaudio problems
by gnd＠itchybit.org 05 Oct '09

05 Oct '09

hello, im using Ubuntu Jaunty and have problems with sound in PD 0.41.4-extended when using simultaneously Firefox and/or Audacious. If i start PD sooner then firefox and audacious, they dont make any sounds but sound in pd works ok. If i start PD later, firefox and audacious work fine, but sound in PD gets stuck with: snd_pcm_open (output): Device or resource busy (in the shell) audio I/O stuck... closing audio (in pd console) Both FF and Audacious are using the pulseaudio server. I tried to create a /etc/asound.conf, to create a new device: pcm.pulse { type pulse } ctl.pulse { type pulse } pcm.!default { type pulse } ctl.!default { type pulse } and use it with pd -alsa -alsaadd pulse, but the audio output in pd still doesnt work when running some other sound applications. When running pd alone like this, the sound is severely garbled and after a while it hangs the same... Is there some normal way how to handle this ? I mean it should not be a problem using several application at once but apparently pd has some problems with it.. Thanks for any advices.. gnd/

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Patching circle NYC
by Jerome Covington 03 Oct '09

03 Oct '09

I'd be in. Oct. 10, you say? -- Regards, Jerome Covington . . . . : . . . . : "define audio development"

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segfault with dynamic loading of abstractions
by Orm Finnendahl 02 Oct '09

02 Oct '09

Hi all, trying to load abstractions into a patch dynamically from a self written external sometimes leads to a segfault when turning on dsp rendering. Here is what I'm trying to do: The patch is some specialized synth where a program change loads a predefined number of synth voices, stored as abstractions, into a subpatcher and connects them within the subpatcher. Connections to the outside world are done via throw~ and catch~ within the abstractions. When dsp is turned on all the time during this, sometimes, audio generated in the synth voices isn't appearing at the outlets (it seems the audio isn't integrated into the dsp path at all). All the created objects and their connections are visible in the gui. Turning dsp off and on makes it work, but trying to automatize it leads to the segfaults from time to time. I used a clock object to delay the reinitialisation of dsp rendering which helps tremendously, but even with delaytimes of 1000-2500 ms I sometimes run into the segfaults (and I consider this not really as a "solution"). Below are the relevant code segments which are run within the same function (lots of lines omitted). I've spent lots of hours in gdb trying to chase this down but I'm at loss here. This thing is killing me. Any help is greatly appreciated! -- Orm t_atom *p; int n,m,xoffs,yoffs; t_atom mess[5], atarget, aroute; /* Clear the voices canvas */ if (x->x_synth_voices_canvas.a_w.w_symbol->s_thing) typedmess(x->x_synth_voices_canvas.a_w.w_symbol->s_thing, gensym("clear"), 0,0); /* Load the abstractions into it */ for (n=4, xoffs=0, yoffs=0; n>=0; n--, xoffs++, yoffs++) { SETFLOAT(mess, ((xoffs*20)+500)); SETFLOAT(mess+1, ((yoffs*20)+50)); /* "catch-vu.pd" */ SETSYMBOL(mess+2, gensym("catch-vu")); SETFLOAT(mess+3, x->x_canvasdollarzero); SETFLOAT(mess+4, (float)n); if (x->x_synth_voices_canvas.a_w.w_symbol->s_thing) typedmess(x->x_synth_voices_canvas.a_w.w_symbol->s_thing, gensym("obj"), 5, mess); else { error("synth_voices_canvas doesn't exist"); goto exit; } } p=x->x_initseq->b_vec; /* this variable holds the number of voices */ for (n=1, xoffs=0, yoffs=0; n<=(int)p->a_w.w_float; n++, xoffs++, yoffs++) { SETFLOAT(mess, (((xoffs%3)*120)+50)); SETFLOAT(mess+1, ((floor((yoffs)/3)*30)+200)); /* "rec-voice.pd" */ SETSYMBOL(mess+2, gensym("rec-voice")); SETFLOAT(mess+3, x->x_canvasdollarzero); SETFLOAT(mess+4, (float)n); if (x->x_synth_voices_canvas.a_w.w_symbol->s_thing) typedmess(x->x_synth_voices_canvas.a_w.w_symbol->s_thing, gensym("obj"), 5, mess); else { error("synth_voices_canvas doesn't exist"); goto exit; } /* connect the catch-vu objects with the rec-voices */ SETFLOAT(mess+1, 0); SETFLOAT(mess+2, (n+4)); for (m=0;m<5;m++) { SETFLOAT(mess, m); SETFLOAT(mess+3, m); if (x->x_synth_voices_canvas.a_w.w_symbol->s_thing) typedmess(x->x_synth_voices_canvas.a_w.w_symbol->s_thing, gensym("connect"), 4, mess); else { error("synth_voices_canvas doesn't exist"); goto exit; } } } /* Turn on dsp with a delay */ clock_delay(x->x_dspclock, 500); return;

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pd.lib
by brandt＠subnet.at 02 Oct '09

02 Oct '09

Hi can anybody help me to find pd.lib? thanks in advance der.brandt

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Pd-list September 2009