Pd-list June 2012

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107 participants
113 discussions

CueFrog: theatre cue player framework initial release
by Jörn Nettingsmeier 20 Jun '12

20 Jun '12

hi everyone! thanks to the excellent pd documentation out there and lots of hand holding by friendly pd gurus on this list and elsewhere, here's my humble take at creating a theatre cue player with pd that does what i need... all the heavy lifting is done by august black's excellent readanysf~, thanks for making this tool available! CueFrog is designed to be multi-instance capable, so you can create as many decks as your machine can handle, and makes use of lots of send/receive ports to simulate some kind of object-oriented encapsulation stuff, based on my (limited) understanding of a model/view/controller paradigm. grab it: http://stackingdwarves.net/public_stuff/software/CueFrog/CueFrog-0.0.2.tar.… it's documented, so you should get it going in no time. i'm sure there are many quirks there, and i found out it's very easy to create race conditions in pd, so no warranties :) comments and suggestions for improvements are most welcome. i have a vbap-based panning automation in the works (which has already been used live at a theatre festival), but the code is in oh-my-good-tomorrow-is-dress-rehearsal shape, so forgive me for withholding it another month or so. and before you ask: frogs are cute. and when the director makes me jump, i need tools that jump along :-D best, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio) Tonmeister VDT http://stackingdwarves.net

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[gem] gemframebuffer > pix_buffer_write
by pierre＠314r.net 20 Jun '12

20 Jun '12

Hi all, I would like to know if there is a way to record a [gemframebuffer] into a [pix_buffer 1000] my goal is to be able to record a gemchain animation (5 seconds maybe) and replay it (forward, backward, etc) I know that [pix_snap] with [pix_buffer] could do the job, but it eat a lot of cpu, so a solution with [gemframebuffer] would be better... pierre

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mp3amp~ crash pd on ubuntu 12.04
by Nicolas Montgermont 20 Jun '12

20 Jun '12

Hello all, I have a problem here with mp3amp. It crashes pd when connecting to a stream. I can't use ogg for special reasons. Regarding the crash log, do you have an idea of the origin of the problem? the config is : pd : 0.43.2 mp3amp & unauthorised from svn (1 week ago) ubuntu: 12.04 libmp3lame : 3.99.3+repack1-1 Is this an incompatibility between actual mp3lame and mp3amp? I know it is building against specific headers located in the unauthorized directory. OTOH mp3cast~ seems to work well. Here is the log of the crash using valgrind: Best n -- mp3amp~: connecting to http:/27.112.111.91:8000/infinite_stream_loop.mp3 mp3amp~: connected : socket opened mp3amp~: select done mp3amp~: send done mp3amp~ : received 251 bytes at 0 mp3amp~: IceCast server detected mp3amp~: connected to http://27.112.111.91:8000/infinite_stream_loop.mp3 ==8884== Thread 1: ==8884== Invalid write of size 4 ==8884== at 0x530F03D: decode_header (in /usr/lib/i386-linux-gnu/libmp3lame.so.0.0.0) ==8884== by 0x5363005: mp3amp_perform (mp3amp~.c:474) ==8884== by 0x80D0A86: dsp_tick (in /usr/local/bin/pd) ==8884== by 0x80BBE58: sched_tick (in /usr/local/bin/pd) ==8884== by 0x80BCE00: m_mainloop (in /usr/local/bin/pd) ==8884== by 0x805724A: main (in /usr/local/bin/pd) ==8884== Address 0xfffb92d9 is not stack'd, malloc'd or (recently) free'd ==8884== ==8884== ==8884== Process terminating with default action of signal 11 (SIGSEGV) ==8884== Access not within mapped region at address 0xFFFB92D9 ==8884== at 0x530F03D: decode_header (in /usr/lib/i386-linux-gnu/libmp3lame.so.0.0.0) ==8884== by 0x5363005: mp3amp_perform (mp3amp~.c:474) ==8884== by 0x80D0A86: dsp_tick (in /usr/local/bin/pd) ==8884== by 0x80BBE58: sched_tick (in /usr/local/bin/pd) ==8884== by 0x80BCE00: m_mainloop (in /usr/local/bin/pd) ==8884== by 0x805724A: main (in /usr/local/bin/pd) ==8884== If you believe this happened as a result of a stack ==8884== overflow in your program's main thread (unlikely but ==8884== possible), you can try to increase the size of the ==8884== main thread stack using the --main-stacksize= flag. ==8884== The main thread stack size used in this run was 8388608. ==8884== ==8884== HEAP SUMMARY: ==8884== in use at exit: 20,022,264 bytes in 5,910 blocks ==8884== total heap usage: 20,397 allocs, 14,487 frees, 24,795,334 bytes allocated ==8884== ==8884== LEAK SUMMARY: ==8884== definitely lost: 116 bytes in 6 blocks ==8884== indirectly lost: 0 bytes in 0 blocks ==8884== possibly lost: 288 bytes in 2 blocks ==8884== still reachable: 20,021,860 bytes in 5,902 blocks ==8884== suppressed: 0 bytes in 0 blocks ==8884== Rerun with --leak-check=full to see details of leaked memory ==8884== ==8884== For counts of detected and suppressed errors, rerun with: -v ==8884== Use --track-origins=yes to see where uninitialised values come from ==8884== ERROR SUMMARY: 173787 errors from 25 contexts (suppressed: 0 from 0) Processus arrÃªtÃ© -- http://nim.on.free.fr

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"oops: ALSA cards not reported in order?"
by Julian Brooks 20 Jun '12

20 Jun '12

Hi all, I have recently upgraded my system to Debian Sid (with some wheezy pinning) which is the post-puredyne/eighty-column newfangled method. See here for more info: http://eightycolumn.lurk.org/Category:Debian When I try to run my fresh new Pd install (0.43.2-3 from the debian unstable repository) this is what happens: 'oops: ALSA cards not reported in order? oops: ALSA cards not reported in order? priority 8 scheduling enabled. priority 6 scheduling enabled. watchdog: signaling pd... watchdog: signaling pd... watchdog: signaling pd... watchdog: signaling pd...' Not good obviously. When I start with these flags this happens: 'puredata -alsa -listdev -nogui -noaudio oops: ALSA cards not reported in order? oops: ALSA cards not reported in order? audio input devices: 1. HDA Intel (hardware) 2. HDA Intel (plug-in) 3. Hammerfall DSP (hardware) 4. Hammerfall DSP (plug-in) 5. ThinkPad Console Audio Control (hardware) 6. ThinkPad Console Audio Control (plug-in) audio output devices: 1. HDA Intel (hardware) 2. HDA Intel (plug-in) 3. Hammerfall DSP (hardware) 4. Hammerfall DSP (plug-in) 5. ThinkPad Console Audio Control (hardware) 6. ThinkPad Console Audio Control (plug-in) API number 1 no midi input devices found no midi output devices found oops: ALSA cards not reported in order? priority 6 scheduling enabled. priority 8 scheduling enabled.' I add this for possibly useful info: 'julian@jb-laptop:~/Desktop$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: DSP [Hammerfall DSP], device 0: RME Hammerfall DSP + Multiface [RME Hammerfall DSP + Multiface] Subdevices: 1/1 Subdevice #0: subdevice #0' This too: 'julian@jb-laptop:~/Desktop$ cat /proc/asound/cards 0 [Intel ]: HDA-Intel - HDA Intel HDA Intel at 0xfe220000 irq 45 1 [DSP ]: H-DSP - Hammerfall DSP RME Hammerfall DSP + Multiface at 0xc0000000, irq 16 29 [ThinkPadEC ]: ThinkPad EC - ThinkPad Console Audio Control ThinkPad Console Audio Control at EC reg 0x30, fw 7MHT25WW-1.03' The RME soundcard is loading fine at startup. No problems with HDSPconf/mixer AFAICT. Get sound out of the RME with Audacity and jack seems to be running fine too (though annoyingly the apt-get install removed jack2 (which I would like to use so I can run jacktrip but that's not my top priority atm and installed jack1). Laptop is a lenovo x61s 7700. Any pointers would be great as I'm out of ideas and starting to lose the plot with this now. Cheers, Julian

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BUG in Linux/ALSA midi connection handling?
by Jörn Nettingsmeier 20 Jun '12

20 Jun '12

hi *! there's this very annoying problem of PD autoconnecting to all available midi ports when using ALSA midi on Linux. since it wisely decides to also connect to all internal midi thru ports, it immediately enters an infinite midi loop on startup as soon as there is any controller with feedback active. but there is a deeper underlying problem apparently: for every midi message that gets sent out, the corresponding port is reconnected. i guess that's not very scalable. i found this out by watching the qjackctl logs - they spit out one reconnection line for every outgoing midi cc. as suggested by claude heiland-allen in another thread (subject "pure data midi autoconnect"), i'm now invoking pd with "-alsamidi -mididev 1,1", which prevents autoconnection. ***interestingly, it also prevents the constant re-connection to the alsa sequencer ports on every outgoing message.*** i think this might be a hint that something is wrong somewhere in the alsa sequencer glue in pd. best, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio) Tonmeister VDT http://stackingdwarves.net

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creation parameters to inlets/outlets for documentation?
by Jörn Nettingsmeier 20 Jun '12

20 Jun '12

hi *! first of all, thanks for all your helpful replies to my earlier question about messages and abstraction - i'm still trying to understand some of the comments, but i'm going with claude's suggestion for now to keep the ID knowledge outside of all related objects and not use $0. so far, that seems to do the job, and the code is a lot cleaner now. will post asap. quick question: is it legal to (ab)use creation parameters to inlets and outlets for documentation, or does that lead to unwanted side effects? i'd like to do something like this: [inlet Set level in dB] [inlet Set Fader position in mm] [outlet Current level in dB] [outlet Current Fader position in mm] [outlet~ Gain coefficient] of course i could use comments, but i don't like the way they don't line-wrap in a controlled way, plus their association to what they are annotating is a bit weak for my taste... best, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio) Tonmeister VDT http://stackingdwarves.net

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Calculate rotation from translation & Gimbal Fix issue (euler, quaternion)
by Roch Jub 20 Jun '12

20 Jun '12

Hello PD list ! My first message here ! I have a little problem and I need some of your logic, because I've took my project from paper scratch to the end pd patch like I thought it should, but obviously it's not working right ! So I got a kinect ... keeewl ! I managed to install it on Ubuntu then on Pure Data with pix_openni, thanks to Matthias ! I want to calculate the angles of rotations of each joints of the skeleton in order to apply it on a 3D character rig. I just want the rotations, no translations, because the guy in front of camera might not have the same proportions as the model, I just want to reproduce the rotation of the angles ! Now I'm gona tell you what I do, and if one know what's wrong ... please tell me :) I'm writting in normal code so it's clearer here That's what I do first to get each angle in degree function getAngle(AB,BC) { AC = sqrt((AB*AB)+(BC*BC)); BD = AC - AB; angle = atan(AB/BC)+atan(BD/BC) angle = ( angle *180/PI)*2 return angle%360; } _X = getAngle((hand.x- shoulder .x),( hand .y- shoulder .y) ); _Y = getAngle(( hand .x- shoulder .x),( hand .z- shoulder .z) ); _Z = getAngle(( hand .y- shoulder .y),( hand .z- shoulder .z) ); When _X, _Y and _Z are applied to the rotation values of a cube, it's kinda matching with X and Y but when I plug Z it goes really weird. After some readings, I found out about Gimbal Lock. So I've read this http://www.cs.princeton.edu/~gewang/projects/darth/stuff/quat_faq.html#Q26 wich is great info ! And I used the sources they give, simplified them to do just what I wan, and translated it in PD graphical language. I checked many time every calculation so it's same result as the original sources of the link above. The degrees seems to be transformed correctly, but when applied to my cube, still not matching moves !!! Brrrrr .... Other fact I don't know how to take, when I compare the results of the sources from the link above to the one on a online calculator euler->quaternion->euler, I have different results in one case, if abc(C) > 0.005, when Y angle is almost 90°. But even by translating the source of this online calculator to a PD patch and applying it to my cube, it's still not right !! Here is the sources of the gimbal lock fix I use RADIANS = 180/3.14159; sin_Y = Math.sin(_Y/RADIANS); cos_X = Math.cos(_X/RADIANS); cos_Z = Math.cos(_Z/RADIANS); sin_X = Math.sin(_X/RADIANS); sin_Z = Math.sin(_Z/RADIANS); cos_Y = Math.cos(_Y/RADIANS); Y = -Math.asin(-sin_Y); C = Math.cos(Y); Y *= RADIANS; if (Math.abs(C) > 0.005) { RX = (cos_X*cos_Y)/ C RY = -(-sin_X*cos_Y)/ C X = Math.atan2(RY,RX); X *= RADIANS; RX = (cos_Y*cos_Z)/ C RY = -(-cos_Y*sin_Z)/ C Z = Math.atan2(RY,RX); Z *= RADIANS; }else{ X = 0; RX = ((sin_X*sin_Y)*sin_Z)+(cos_X*cos_Z); RY = -(sin_X*sin_Y)*cos_Z+cos_X*sin_Z; Z = Math.atan2(RX,RY); Z *= RADIANS; } If anyone can tell me what's wrong would be great, I'm really stuck, but still looking for solutions everywhere, so I'll keep you updated, and hopefully share the patch when it's finished :) thanks for reading, cheers

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Nport Server with Pure Data for Hardware Control
by Pagano, Patrick 19 Jun '12

19 Jun '12

Hello I am going to endeavor to get a moxa 8 port Ethernet to serial controller working with pure data if possible and I was wondering if anyone has used such a device or Ethernet to Serial control in Pure Data. I have 5 projection Design Projectors that I want to 1.) Power On 2.) Power Off 3.) Shutter 4.) Switch Source I would love to hear from anyone as I get started on this. Previously we had some home grown java controller but it really is not working anymore. I would like to have some simple buttons in pd controlling the messages pp Patrick Pagano, B.S, M.F.A Assistant in Digital Arts and Science Digital Worlds Institute University of Florida, USA (352)294-2020

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[GEM] Re: question about contours and Pure Data?
by J Oliver 19 Jun '12

19 Jun '12

Hey Mick, I'm copying the list as you might get interesting responses... > in fact I am looking for a contour transform in PD. I come from Matlab image processing and I am confortable with the Image Processing form of approaching images, > treating them like matrices, and applying Hit Or Miss transforms (are you familiar with this? and Mathematical Morphology?). Contour objects are not readily available in GEM as far as I can recall, but I am not an expert. A generic object to apply small matrices might be a useful thing to have though... > how do you threshold a grey level image? check out pix_threshold > not to make it too long, how do you find contours of a binary image? > and is there some way to run a kernel (little matrix, i.e. 3by3) on an image, apply some processing inside this kernel (i.e. calculate the minimum and set its value in the center pixel) to transform the whole image? you can check out the code for pix_mano.cpp in the extra folder of GEM. I think this is the best way to analyze the contour of an image. It sounds like pix_mano, or parts of its code, may already be doing what you are looking for? best, J *************** Jaime Oliver www.jaimeoliver.pe jo2357(a)columbia.edu Columbia University On Jun 15, 2012, at 7:09 PM, mick mengucci wrote: > Hi > excuse me if I write you > I saw your email at the bottom of an interesting patch called [pix_mano] > > in fact I am looking for a contour transform in PD. I come from Matlab image processing and I am confortable with the Image Processing form of approaching images, > treating them like matrices, and applying Hit Or Miss transforms (are you familiar with this? and Mathematical Morphology?). > > not to make it too long, how do you find contours of a binary image? how do you threshold a grey level image? > and is there some way to run a kernel (little matrix, i.e. 3by3) on an image, apply some processing inside this kernel (i.e. calculate the minimum and set its value in the center pixel) to transform the whole image? > > well, I appreciate your attention in reading this > then whatever you can do is ok > > cheers > Mick Mengucci > > > -- > WWW.MISTURAPURA.NET > pure mixture vibration since 1995 > www.myspace.com/mickmengucci > >

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[PD-announce] [Workshop] Xth Sense Biophysical Music, London, Final Reminder
by Marco Donnarumma 19 Jun '12

19 Jun '12

XTH SENSE Workshop @ Beam Festival, London with Marco Donnarumma. Create your own low cost, biophysical, wearable sensor for muscle sounds. We have only very few places left. Visit the link below to register. Registration: http://www.beamfestival.com/tickets-2/ ~~WHAT The Xth Sense is a biophysical musical instrument. With it you can produce music with the sound of your muscles. It is free and open source, and it was named the “world’s most innovative new musical instrument” by the Georgia Tech Center for Music Technology (US, 2012). Its name is spelled ecsth sense (not tenth sense!). But it’s way easier to call it XS. Students will build their own XS sensor. Theoretical and practical training in gestural control of music and bodily audiovisual performance with the Xth Sense will be provided. Reclaim your body and let it sound! Complete info: http://marcodonnarumma.com/teaching/xth-sense-biophysical-music/ ~~WHEN The workshop costs £50 and takes place over 3 sessions: 6 – 7.30pm Friday 22 June 11am – 6pm Saturday 23 June 10am – 12pm Sunday 24 June ~~WHERE Brunel University, Uxbridge, London. feel free to distribute to your networks, thanks, best wishes, -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. ACE, Sound Design MSc by Research (ongoing) The University of Edinburgh, UK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com | http://www.thesaddj.com | http://www.flxer.net Director: http://www.liveperformersmeeting.net _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Pd-list June 2012