Pd-list May 2018

pd-list@lists.iem.at

58 participants
66 discussions

matrix operations with audio signals
by Derek Holzer 21 May '18

21 May '18

Dear list, I have been creating 2D and 3D oscilloscope graphics with audio signals in Pure Data for some time now. I've started digging deeper into 3D math and have found that the ability to do matrix operations at audio rate would be extremely useful. Right now, the only option I can see is to use [matrix~] from IEMmatrix lib, and to pack my other audio vectors using [mtx_pack~] in a subpatch with [block~ 1] to get samplewise operations. Is this the best/only way to do this? Seems like the [block~] could make it unnecessarily expensive. Thanks! Derek -- derek holzer noise.art.technology http://macumbista.net

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Escaping/not resolving dollar argts in msgs/objects?
by Derek Kwan 21 May '18

21 May '18

Hello list, Perhaps a bit of a long shot and pretty much the exact opposite of the $0 in messages conversations as of late: Is there a way to NOT resolve dollar arguments in messages and/or objects? Example case: Lately for a project I've wanted to create vast swaths of [array define]s and I've done so with dynamic patching. Since I want their bound symbols to be something like "$0-snd0", "$0-snd1" $0"-snd2"... "$0-snd50", I DON'T want dollar arguments (particularly the $0) to resolve to anything. Similarly, I store filepath + array symbol pairs in texts to do a big load at the beginning and for right now and can always add the $0-bit via passing that symbol through a [makefilename], but I'm wondering if I can pass $0s unresolved into a text without having to manually type it in via the popup window. Of course I can always edit the patch in emacs/vim and do a search/replace, but I'm looking for an in-Pd solutions... Also for the array business I suppose I could do that via [clone], but that situation doesn't seem ideal either... Thanks! Derek -- Derek Kwan www.derekxkwan.com

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Re: [PD] Pd sometimes not outputting sound when launched on boot
by Dan Wilcox 18 May '18

18 May '18

This is usually due to Pd starting up too quickly with -nogui and not setting up the audio in time. I assume you're using a loading to turn on DSP in the patch, try adding a delay ala: [loadbang] | [delay 100] | [ pd dsp 1; < > I have an Odroid-XU4 running Ubuntu 16.04.3 LTS and I'm running > Pd-0.48-1 on it. I want to enclose it and use it headless so I'm > launching Pd on boot via crontab. This is what I've written in crontab: > > @reboot sleep 30 ; pd -alsa -audiodev 3 -inchannels 2 -outchannels 4 > -nogui -open > /home/odroid/Documents/Pd/3dPd/Pd_patches/modular_synthesizer.pd & > > Half of the times I'm booting up the Odroid, Pd won't make any sound. I > have an LED controlled by a Teensy, which gets input from Pd when the > DSP goes on (through [r pd] -> [route dsp]), and it indicates that the > DSP is indeed on. > > Is there some known issue, or anyone has something in mind? -------- Dan Wilcox @danomatika <http://twitter.com/danomatika> danomatika.com <http://danomatika.com/> robotcowboy.com <http://robotcowboy.com/>

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Pd sometimes not outputting sound when launched on boot
by Alexandros 17 May '18

17 May '18

I have an Odroid-XU4 running Ubuntu 16.04.3 LTS and I'm running Pd-0.48-1 on it. I want to enclose it and use it headless so I'm launching Pd on boot via crontab. This is what I've written in crontab: @reboot sleep 30 ; pd -alsa -audiodev 3 -inchannels 2 -outchannels 4 -nogui -open /home/odroid/Documents/Pd/3dPd/Pd_patches/modular_synthesizer.pd & Half of the times I'm booting up the Odroid, Pd won't make any sound. I have an LED controlled by a Teensy, which gets input from Pd when the DSP goes on (through [r pd] -> [route dsp]), and it indicates that the DSP is indeed on. Is there some known issue, or anyone has something in mind?

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[PD-announce] VECTOR SYNTHESIS WORKSHOP HELSINKI
by Derek Holzer 17 May '18

17 May '18

Dear Pd people, you may be interested to know about a workshop I will hold soon in Helsinki for audiovisual synthesis on the oscilloscope. Thank you for your kind attention! Derek *** VECTOR SYNTHESIS WORKSHOP HELSINKI 16 & 17 Jun 2018, 11:00 — 17:00 Location: Kuusi Palaa, Kolmas linja 7, 00530 Helsinki, Finland During this two-day workshop, you will explore the direct relationship between sound and image. Using the Pure Data programming environment, you can directly control the vertical and horizontal movements, as well as the brightness, of a beam of light. You will then investigate Lissajous figures, 3D models, Rutt-Etra video scan processing, and other audio-driven visual shapes and forms which can be displayed and manipulated in real time on an XY oscilloscope, or with oscilloscope emulating software directly on your laptop. The participation fee for this workshop is EUR 50. https://kuusipalaa.fi/events/vector-synthesis/vector-synthesis -- derek holzer noise.art.technology http://macumbista.net _______________________________________________ Pd-announce mailing list Pd-announce(a)lists.iem.at https://lists.puredata.info/listinfo/pd-announce

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Re: [PD] Tcl 8.4 /8.5 on mac-ppc (Dan Wilcox)
by rolfm＠dds.nl 17 May '18

17 May '18

i very much appreciate the efforts people of the Pd-community to help Pd users like me. until today i did not realize that Wish is an external app. unfortunately i cannot report any succes on the subject. i manually downloaded tcl & tk sources 8.5.19 from sourceforge; compiled it following the readme. however the Wish8.5.app fails to run: "unrecognized selector sent to instance...". my hacking of the kiosk-plugin.tcl did neither produce an usable result. because the kiosk-plugin is not essential for this project, i'll do without it for the moment. @IOhannes > (i very much applaud the use of old hardware; but if you want to run > new > software on it, you probably shouldn't) well, apart of the kiosk-plugin, everything else of patches is working. and the kiosk-plugin is not that new either. i still find it a valuable challenge (sometimes even necessary. thanks to everyone for the support rolf

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[OT] composition competition
by oded＠ccrma.Stanford.EDU 17 May '18

17 May '18

I hope that a composition competition based on machine learning would be of interest to enough people on this list... folk-rnn composition competition The aim of this competition is to explore an application of machine learning to music --- in particular the online tool at folkrnn.org. This model is an example of artificial intelligence trained on traditional tunes mainly Irish and English. The web interface allows users to generate new melodies using a few parameters (There's a video on the website that explains how it works). We are seeking works that make creative use of this tool to compose new pieces, which do not need to adhere to the idiom of the training material. Submissions will be judged on their musical quality and their utilisation of outputs from folkrnn.org. The winning piece will be performed by a professional ensemble at a public concert in London, UK, in early October 2018. Professional recordings of the performance will be provided to composers, and with the permission of musicians and composers, made available on the project youtube channel: https://www.youtube.com/channel/UC7wzmG64y2IbTUeWji_qKhA We welcome submissions from any composer without restriction of age or nationality. Attendance at the concert is not mandatory. There is no cost for submitting a work. Rules for submitted works: 1. scored for any combination of the following instruments: flute, clarinet, violin, cello, and piano (only 1 each); no use of amplification or electronic instruments is allowed; 2. no longer than 10 minutes in duration; 3. must be derived in some way from material generated by the application at folkrnn.org; 4. must be accompanied by a written explanation of how the work comes about from the use artificial intelligence through the folkrnn.org website. Composers can also accompany the text with illustrations (e.g. staff notation). 5. no restrictions on style, or the way the outputs from folkrnn.org are used; Important dates: - August 31 2018: Submission of PDF score and required accompanying material email to competition(a)folkrnn.org - September 15 2018: Notification - September 25 2018: Performance materials due - October 9 2018: Concert (London UK) For more information about the technology, see the following: http://theconversation.com/machine-folk-music-composed-by-ai-shows-technolo… https://www.inverse.com/article/32276-folk-music-ai-folk-rnn-musician-s-bes… If you have questions or comments, contact Dr. Oded Ben-Tal: o.ben-tal(a)kingston.ac.uk

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Re: [PD] external to set/change sample rate
by Zack Lee 17 May '18

17 May '18

You can also check out [ofSetAudioDevices] from ofelia. Zack

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inlet~ enhancements
by Alexandre Torres Porres 17 May '18

17 May '18

Hi, there's this new Pull Request discussing some ideas for inlet~, maybe others would like to check it out and participate https://github.com/pure-data/pure-data/pull/363 cheers

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external to set/change sample rate
by Alexandre Torres Porres 17 May '18

17 May '18

hi, is there anything like that around?

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Pd-list May 2018