Pd-list March 2013

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104 participants
145 discussions

Announcing PdParty
by Dan Wilcox 09 Mar '13

09 Mar '13

Howdy all, Over Christmas break, I decided that making a swiss arm knife all-in-one cross-platform app to "rule them all" was not going to be feasible with all the other work I need to do for my thesis, so I've shelved the OpenFrameworks-based robotcowboy app for now. I've returned instead to PdParty, my port of DroidParty which I've rewritten in Obj-C as a universal iOS app. It currently supports the Pd-vanilla gui objects, CoreMIDI io, and has a built in WebDAV server for scene/patch management. The eventual goal is compatibility with DroidParty and RjDj scenes, but in the meantime, I need a new mobile platform for my songs. Yes, the gui design will be improved over time, for now I'm just trying to emulate the core gui stuff until everything is working. I'll be ready to send out beta testing invites in the next week, so please respond with an email address I can send the info to. Thanks! (And I just found out about MobMuPlat. What a crazy small world we live in.) Screenshots: -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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PD on RPi A update
by tefman prosk 09 Mar '13

09 Mar '13

No duplex input and output w/ behringer uca222 on RPi A. Just output. same args 44100, 24, 64 GUI is running w/ unpowered usb hub. Will try ssh. same cpu use. Best -tefman

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Saving camera dialog
by Alexandros Drymonitis 08 Mar '13

08 Mar '13

With midi or audio you can send Pd a message on load which you get either with [get-midi-dialog] and [get-audio-dialog] or by connecting [r pd] to [print], then go to midi/audio settings and press ok. This gives you the message you have to send so you can use these settings immediately (say, if you use pd -nogui). What about using a camera other than the built-in? You can set that by sending [dialog( to [pix_video], but is it possible to set it by sending Pd a message? If so, where do you get this message from?

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Re: [PD] found how to reproduce Pd-ext 0.43.4 Tcl Invalid Command Name error
by Marco Donnarumma 07 Mar '13

07 Mar '13

Thanks Ivica, I'm gonna try with pd-l2ork and report. I can also take a look at those files, although my knowledge is pretty limited as it comes to .c M > FWIW, I've done a lot of work at cleaning up gop-related bugs in > pd-l2ork. This is one of them (in other words, pd-l2ork is not affected > by this). It may not be a bad idea to do some code comparison between > g_editor.c g_canvas.c and g_graph.c files where most of these reside in > hope of merging this into regular pd/extended. > -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.liveperformersmeeting.net

1 0

file format for GEM
by Stephan Elliot Perez 06 Mar '13

06 Mar '13

Greetings, I am just starting to use GEM and am having a problem with video playback using pix_film. The CPU goes through the roof and the video naturally lags. My original video clips were in .MTS (panasonic, 1920 x 1080) format. I then converted them into .mp4 (Codecs: H.264, AAC) using Handbrake and then into .mov (Codecs: MPEG-4 Video) using MPEGstream. Are the codecs the problem or the video quality/file size the problem? What do you suggest I do? Best regards, Stephan

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Re: [PD] wireless audio from Pd to PA system (katja)
by richard duckworth 06 Mar '13

06 Mar '13

Hi Katja one of these would do it - check with Thomann tech support for gain issues (these are Instrument Level input) They should be fine however as active guitar pickups (like heavy style EMG pickups) output quite high levels. These type of wireless systems tend to be very rugged, have excellent sound quality and long battery life - and you'll want these things. http://www.thomann.de/ie/cat.html?gf=wireless_for_guitar_bass&oa=pra Rich Duckworth Lecturer in Music Technology Department of Music House 5 Trinity College Dublin 2 Ireland Tel 353 1 896 1500 "Digital? Is that the thing where they take a good old sine wave and they chop it up into little bits?" --- Rupert Neve ________________________________ Message: 3 Date: Thu, 28 Feb 2013 11:53:43 +0100 From: katja <katjavetter(a)gmail.com> Subject: [PD] wireless audio from Pd to PA system To: pd-list <pd-list(a)iem.at> Message-ID: <CAFY0eapPSKfw+gVaxuTr7exHqLiG+pTdu8Rk6SNTraLiys2Msg(a)mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 For a wearable live performance computer, I am looking into the options of sending wireless audio from Pd to a PA sound system and other listeners. In a first experiment I've tried a Linex FM transmitter. Audio quality is good enough, and FM transmitters do not introduce latency. This option is cheap and flexible, as the signal can be received by simple radio's, which are even built into cell phones and media players. I would need to boost the transmission a bit to make it more reliable. This will of course make the equipment illegal. Even then, the risk that someone else is transmitting a stronger signal on the channel can not be excluded. Another option could be to send audio over Wifi. This would require WLAN to be available, and one extra computer (with audio interface) as a receiver. To avoid extra latency the audio should be sent uncompressed, like [udpsend~] / [udpreceive~] can do it. This has the risk of packet loss and serious dropouts. I've been searching for 2.4 GHz wireless music receivers and found things like this: http://www.sitecom.com/en/wireless-music-streamer/wl-061/p/203. They seem to act like external soundcards for your computer. In Linux though I've never managed to properly connect multiple soundcards with Pd (in OSX it's easy using the Aggregate Device Editor from Audio MIDI Setup). Also I guess these devices introduce huge latency. With audio over bluetooth headsets I've experienced latencies up to a second. Does anyone use a satisfactory method in practice, to send audio from Pd without wires? Thanks, Katja ------------------------------ _______________________________________________ Pd-list mailing list Pd-list(a)iem.at to manage your subscription (including un-subscription) see http://lists.puredata.info/listinfo/pd-list End of Pd-list Digest, Vol 95, Issue 152 ****************************************

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Gem with Intel HD 4000 F/MSAA
by puredata＠11h11.com 06 Mar '13

06 Mar '13

Is it possible to use anti-aliasing with an Intel HD 4000? http://communities.intel.com/thread/31912 Intel graphics built into the last two generations support MSAA I tried to send MSAA 1 || 2 || 4 || 8 = not working. I think Gem only support FSAA?

3 3

fixes for two memory leaks
by Ivica Ico Bukvic 06 Mar '13

06 Mar '13

Miller, Hans, et al, I am forwarding you two patches that are memory leaks in pd. Pd vanilla is affected only by one of them, while pd-extended has both (second is magicGlass that Hans ported from pd-l2ork and that I just figured out a couple days ago). Since code bases are now fairly apart on the files involved, I am supplying the fix in this way in hope it is easier to understand this way. 1) The problem that affects all versions of pd can be tested using the bug report on the sourceforge is related to rtext freeing: http://sourceforge.net/tracker/?func=detail&aid=3605235&group_id=55736&atid… Following implementation fixes it both for GOP abstractions and individual objects: In g_graph.c glist_delete() call: at the beginning of the function + t_rtext *rt = NULL; + int late_rtext_free = 0; further down instad of rtext_new(x, ob); + rt = glist_findrtext(x, ob); + if (rt) + late_rtext_free = 1; at the end of the function + if (late_rtext_free) { + rtext_free(rt); + } } } (late_rtext_free here is to provide more clarity to the process, it is obviously unnecessary since you could simply check for pointer value instead) 2) Magicglass fix (affects pd-extended only, memory leak due to improper freeing of magicGlass--to test simply check memory footprint as you keep recreating a GOP abstraction using a variant of the patch provided on the sourceforge): ========================= in g_magicglass.c (added unbind call): void magicGlass_free(t_magicGlass *x) { //fprintf(stderr,"magicglass_free\n"); + magicGlass_unbind(x); x->x_dspOn = 0; clock_free(x->x_clearClock); clock_free(x->x_flashClock); } in g_canvas.c canvas_free function: - if (x->gl_magic_glass) - magicGlass_free(x->gl_magic_glass); + if (x->gl_magic_glass) { + //magicGlass_free(x->gl_magic_glass); + pd_free(&x->gl_magic_glass->x_obj.te_g.g_pd); + } ========================= Best wishes, -- Ivica Ico Bukvic, D.M.A Composition, Music Technology Director, DISIS Interactive Sound & Intermedia Studio Director, L2Ork Linux Laptop Orchestra Head, ICAT IMPACT Studio Virginia Tech Department of Music Blacksburg, VA 24061-0240 (540) 231-6139 (540) 231-5034 (fax) disis.music.vt.edu l2ork.music.vt.edu ico.bukvic.net

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[PD-announce] Club Inegales London, Tuesday 5th, also streamed
by Ed Kelly 05 Mar '13

05 Mar '13

If anyone is in the area...or not... I'll be playing with my new live audio manipulation tools at a gig in Euston, London this Tuesday 5th of March. Some serious Pd reassemblage will happen in the music, so I'm sure it will be fun, but the gig is also going to be streamed live on the internet, so perhaps some of you in different zones will get to hear it. More info as I get it about the stream, check out the flyer for details. Ed Gemnotes-0.2: Live music notation for Pure Data, now with dynamics! http://sharktracks.co.uk/ _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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Hercules Muse Pocker LT / Raspberry Pi
by Alexandre Saunier 05 Mar '13

05 Mar '13

Hi everyone, I've been testing the Hercules Muse Pocket LT usb sound device on a Rasberry Pi (wheezy). In short: - I got it to output six channels with pd but the sound quality is really poor (no matter what the audiobuffer, blocksize... are) - I then slowed down the usb (dwc_otg.speed=1). I can get a good stereo output (though a faint sine can be heard) but when trying four channels pd outputs: ALSA output error (snd_pcm_hw_params): Invalid argument Unable to determine current swparams for output: Input/output error and with 6 channels: read other error -77 Would anyone has any idea whether or not something can be done about that? Otherwise I'll go buy a newer and better working sound card :) Cheers! alx

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Pd-list March 2013