July 2020 - chuck-users - lists.cs.princeton.edu

Chunity (ChucK for Unity): Release!
by Jack Atherton 29 Jul '22

29 Jul '22

Dear all, Hello! I'm happy to announce the initial official release of Chunity (ChucK for Unity)! http://chuck.stanford.edu/chunity/ http://u3d.as/1bvM Chunity is the integration of ChucK in Unity. (For those of you not familiar with the Unity game engine, Chunity gives you the ability to do realtime sound + music generation natively in Unity, tightly coupled to interactions with graphical objects.) You can use most (possibly all?) ChucK features, run new ChucK code on-the-fly at any time, and communicate between Unity and ChucK using "global" (new keyword!) ints, floats, strings, Events, and 1D int and float arrays. (More types to come!) You can even run multiple VMs that share the same strong timing! Check out this video of things people have already made with Chunity: https://vimeo.com/263613454 And check out the original description of Chunity in this NIME paper: http://chuck.stanford.edu/chunity/files/2018-nime-chunity.pdf We want to know what you all do with this! Please feel free to send works in progress, bug reports, feature requests, finished works, etc. to the chuck-users mailing list! We are also planning to send a sparse series of follow-up emails covering tutorials, new features, and cool projects that people in the community have created. Please see the tutorials, documentation, etc. at the official Chunity website: http://chuck.stanford.edu/chunity/ Thank you and happy ChucKing!! Best, Jack + the ChucK team Music:Computing:Design @ CCRMA

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GameTrak velocity
by Curtis Ullerich 08 Aug '20

08 Aug '20

Hi all, I'm experimenting with velocity patterns of GameTrak joysticks as event triggers. I'm curious if there's any prior art here. I'm working on a GameTrak class in ChucK that tracks the hand movement in space to add velocity and acceleration updates alongside the usual xyz position. In general, I've been surprised to not find much in the way of a GameTrak class/lib for ChucK, though I did find this one <https://github.com/rdpoor/chuck_performance_setup/blob/master/lib/game_trak…> . Curtis

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Re: [chuck-users] web integration (fao Jack Atherton)
by Mario Buoninfante 27 Jul '20

27 Jul '20

10 times more expensive than what Spencer suggested, but I think worth checking this out anyway https://www.blokas.io/pisound/ I've been using it on my RaspPi 3 with ChucK in the last 3 months, and is great. I'm using they're Patchbox OS, and that is great as well. Cheers, Mario -- electronic musician, sound artist, creative coder, QA engineer https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfanteOn 27 Jul 2020 01:00, Spencer Salazar <spencer.salazar(a)gmail.com> wrote: > > Hey Michael, > > For sure, feel free to use my course notes here, though they are a little old. If anything meaningful has changed Im happy to update and eventually migrate to a more accessible medium. > https://www.dropbox.com/s/923z4px4ztccm1b/basic-rpi.pdf?dl=0 > > If youre looking for simple 1/8" stereo out Ive had a lot of success with inexpensive (<$10 USD) USB sound interfaces from Amazon/etc. Search for "raspberry pi soundcard" or look for "class compliant" in the description. They don't require any extra software to be installed on the Pi. This option is a quick way to easily get better audio quality from the Pi- in my experience the built-in sound card is unacceptably noisy for most musical purposes. The difference in quality between $10 USB audio and the fancier GPIO shields is much less drastic, and to me never justified the extra expense and baroque custom driver setup of the latter. > > Spencer > > > On Thu, Jul 23, 2020 at 12:47 PM Michael Heuer <heuermh(a)gmail.com> wrote: >> >> Spencer wrote: >> >> > (Ive done a lot of work with native ChucK + Raspberry Pi so can fill in any details if needed). >> >> If you might be able to write a blog post or other walkthrough documentation on this, I would appreciate it! >> >> Last I tried I couldn't get the cheapo USB sound card I was using to work, and I've never gotten as far as setting ChucK up to run automatically on startup. >> >> Thanks! >> >> michael >> >> >>> On Jul 23, 2020, at 2:17 PM, Mícheál Ó Catháin <micheal.ocathain(a)gmail.com> wrote: >>> >>> Jack >>> Thanks very much for the pointers on web chuck! >>> I've got a very basic setup working here https://michealocathain.com/av/webchuck-test/. >>> >>> Note I'm loading Chrome from the cli on a mac as follows: >>> /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --autoplay-policy=no-user-gesture-required >>> >>> It loads /chuck/micheal2.ck, which in plays aah.wav using a sndbuf ugen. >>> >>> Chrome takes about 3 sec to load chuckscript.wasm, and about 2 sec to load aah.wav. This with an empty cache. It's quicker to reload after the first load, but it made me realise that there will possibly be a practical limit on the size of .wav files loaded. >>> >>> Has there been any best practice developed on how to (pre)load .wav files longer than 5 seconds or so? I'm interested in sampling from several ca. 5 min tracks I have recorded at 24bit, ie ca 100mb. This could be way beyond the normal user-case for webchuck!! >>> >>> I'm also curious to know if there is any variant of sndbuf which can handle mp3's or other compressed formats? >>> >>> >>> Have done a scan of the chuck-users archive - apologies if I have missed previous answers to my queries !! >>> >>> >>> Warm regards >>> micheal >>> >>> On Wed, 22 Jul 2020 at 18:23, Mícheál Ó Catháin <micheal.ocathain(a)gmail.com> wrote: >>>> >>>> Spencer >>>> >>>> Thanks a lot for your suggestions. Yes, I'm definitely considering OSC between peer-peer connect Raspberry Pi's. Still in testing mode with web chuck for now, and will see if it is the right setup for a low latency AV installation. >>>> >>>> Ideally I'd love to be able to load .ck files within javascript, driving visualisations

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AutoCorr behavior
by Curtis Ullerich 26 Jul '20

26 Jul '20

As a preamble, I'll note that I posted a question on chuck-dev about AutoCorr/XCorr always crashing for me. This patch <https://github.com/ccrma/chuck/pull/150> seems to fix that. That said, I don't understand the results I get from AutoCorr. For periodic inputs, I expect to see periodicity in the output. For small FFT sample sizes, I see the expected peak at 0, and at large sample sizes I see a second peak at the end of the window. See example plots at 128 <https://i.ibb.co/BBZXgBB/autocorr-128.png> and 4096 <https://i.ibb.co/Mn5fty5/autocorr-4096.png>. That second peak is correlated with the window size, not the input frequency. Thanks to Mario for his gnuplot wrapper <https://github.com/mariobuoninfante/ChucK_various> that captured those plots. Here's the plotting code if anyone would like to repro: SinOsc s => FFT fft =^ AutoCorr c => blackhole; 4400 => s.freq; 128 => fft.size; 300::ms => now; c.upchuck(); Plot plot; "autocorrelation of 4400 hz, 128 samples" => plot.title; plot.plot(c.fvals()); 200::ms => now; Should I be using AutoCorr differently? Am I looking at the power spectrum or something, and not the correlation vector like I think I am? My current understanding comes from reading uana_extract.cpp many times with references like this <http://paulbourke.net/miscellaneous/correlate/>. Thanks, Curtis

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Re: [chuck-users] web integration (Spencer Salazar)
by Mícheál Ó Catháin 26 Jul '20

26 Jul '20

Spencer Thanks a lot for your suggestions. Yes, I'm definitely considering OSC between peer-peer connect Raspberry Pi's. Still in testing mode with web chuck for now, and will see if it is the right setup for a low latency AV installation. Ideally I'd love to be able to load .ck files within javascript, driving visualisations via javascript libraries (I'm still looking into what's possible - have looked at p5.js and d3.js so far). Really useful that you raised the point on UDP. Would an OSC javascript library give the best of both worlds, webchuck to allow chuck drive the javascript visualisations, with OSC maintaining low latency syncronisation? I haven't tried yet, but this looks promising... https://github.com/colinbdclark/osc.js/ Another consideration I should perhaps point out, is this... I primarily am designing the AV installation for people to experience in person in a gallery space - hence the peer to peer set up as a priority. However since the first showing is in October, a second wave lockdown could mean zero footfall. As a backup, I'm looking to be able to run the whole installation on my webserver, so that for example a group of 4 friends could experience the installation on 4 laptops set up in a configuration of their choice in one of their homes. Amazing to think that this is not so far fetched, latency issues aside... I've run ChucK on a single raspberry pi 3 before, using the linux-jack or linux-alsa compilation option. I definitely have LOTS to learn about getting the most out this setup, so I'll be glad of any pointers you may have, and will keep you and Jack posted! warmest wishes micheal From: Spencer Salazar <spencer.salazar(a)gmail.com> To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> Cc: Bcc: Date: Mon, 20 Jul 2020 16:54:30 -0700 Subject: Re: [chuck-users] web integration Hey Micheal, As an alternative, if you intend for the sound to be coming from the Raspberry Pis and not a separate computer loading the webpages, you can run ChucK locally on the Raspberry Pi and communicate over OSC, though you may need to route OSC through Node as Im not certain that standard web browsers can send OSC over UDP natively. Its fairly easy to compile chuck on Raspberry Pi using the Linux compilation instructions (Ive done a lot of work with native ChucK + Raspberry Pi so can fill in any details if needed). Spencer On Mon, Jul 20, 2020 at 7:58 AM Mícheál Ó Catháin < micheal.ocathain(a)gmail.com> wrote: > hi > I'm developing an audiovisual installation to tour a number of arts > centres in Ireland. I want to use ChucK to drive the audio elements, > linking raspberry pi devices (up to 4) connected via hdmi to screens. The > visuals I want to use browsers - probably firefox run off the RPi's. Each > screen then displaying a different page from a javascript application run > from one of the RPi's. > > I've done some initial check online of running ChucK wrapped in > javascript, and this github page is the latest activity I can find > https://github.com/aknuds1/chuck. > > I thought it best to check with the user community if > 1) there are further developments on running ChucK in the browser > 2) if the av setup I'm considering has been done before so I could perhaps > link in and learn from others > 3) if there are better setups that I should be following... > > > Thanks and kind wishes > micheal > I'm still trying to understand if web chuck is an entirely different setup - i.e., On Tue, 21 Jul 2020 at 17:00, <chuck-users-request(a)lists.cs.princeton.edu> wrote: > Send chuck-users mailing list submissions to > chuck-users(a)lists.cs.princeton.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > or, via email, send a message with subject or body 'help' to > chuck-users-request(a)lists.cs.princeton.edu > > You can reach the person managing the list at > chuck-users-owner(a)lists.cs.princeton.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of chuck-users digest..." > Today's Topics: > > 1. Re: visualizing UGens and UAnae (Mario Buoninfante) > 2. Re: web integration (Spencer Salazar) > 3. AutoCorr behavior (Curtis Ullerich) > > > > ---------- Forwarded message ---------- > From: Mario Buoninfante <mario.buoninfante(a)gmail.com> > To: Curtis <curtullerich(a)gmail.com> > Cc: ChucK <chuck-users(a)lists.cs.princeton.edu> > Bcc: > Date: Mon, 20 Jul 2020 22:18:10 +0100 > Subject: Re: [chuck-users] visualizing UGens and UAnae > > You can have dac using multiple channels so that for example you can > connect output 3 and 4 to baudline or any other software you want to use. > > Cheers, > Mario > > -- > electronic musician, sound artist, creative coder, QA engineer > https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com > https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfante > On 20 Jul 2020 22:12, Curtis Ullerich <curtullerich(a)gmail.com> wrote: > > Thank you! Plot seems like it'll do what I need for now. I wonder if > there's a way to tee output to be read by sndpeek or baudline from a graph > node other than dac. > > On Mon, Jul 20, 2020 at 2:02 PM Mario Buoninfante < > mario.buoninfante(a)gmail.com> wrote: > > Also, if you're on Linux I recommend Baudline (http://www.baudline.com/). > I often just leave it connected all the time. > > Cheers, > Mario > > -- > electronic musician, sound artist, creative coder, QA engineer > https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com > https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfante > On 20 Jul 2020 21:25, Curtis Ullerich <curtullerich(a)gmail.com> wrote: > > Is there a way to visualize the waveforms in UGens and data/waveforms in > UAnae? I was hoping to see something in MiniAudicle. It seems like sndpeek > could be useful here. My purpose is for debugging, so it doesn't need to be > pretty. I'm dreaming of something that can show any/all units in the graph. > > Thanks, > Curtis > > > > > ---------- Forwarded message ---------- > From: Spencer Salazar <spencer.salazar(a)gmail.com> > To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Cc: > Bcc: > Date: Mon, 20 Jul 2020 16:54:30 -0700 > Subject: Re: [chuck-users] web integration > Hey Micheal, > > As an alternative, if you intend for the sound to be coming from the > Raspberry Pis and not a separate computer loading the webpages, you can run > ChucK locally on the Raspberry Pi and communicate over OSC, though you may > need to route OSC through Node as Im not certain that standard web browsers > can send OSC over UDP natively. Its fairly easy to compile chuck on > Raspberry Pi using the Linux compilation instructions (Ive done a lot of > work with native ChucK + Raspberry Pi so can fill in any details if > needed). > > Spencer > > > > On Mon, Jul 20, 2020 at 7:58 AM Mícheál Ó Catháin < > micheal.ocathain(a)gmail.com> wrote: > >> hi >> I'm developing an audiovisual installation to tour a number of arts >> centres in Ireland. I want to use ChucK to drive the audio elements, >> linking raspberry pi devices (up to 4) connected via hdmi to screens. The >> visuals I want to use browsers - probably firefox run off the RPi's. Each >> screen then displaying a different page from a javascript application run >> from one of the RPi's. >> >> I've done some initial check online of running ChucK wrapped in >> javascript, and this github page is the latest activity I can find >> https://github.com/aknuds1/chuck. >> >> I thought it best to check with the user community if >> 1) there are further developments on running ChucK in the browser >> 2) if the av setup I'm considering has been done before so I could >> perhaps link in and learn from others >> 3) if there are better setups that I should be following... >> >> >> Thanks and kind wishes >> micheal >> >> michealocathain.com >> _______________________________________________ >> chuck-users mailing list >> chuck-users(a)lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> > > > > ---------- Forwarded message ---------- > From: Curtis Ullerich <curtullerich(a)gmail.com> > To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Cc: > Bcc: > Date: Tue, 21 Jul 2020 01:07:31 -0700 > Subject: [chuck-users] AutoCorr behavior > As a preamble, I'll note that I posted a question on chuck-dev about > AutoCorr/XCorr always crashing for me. This patch > <https://github.com/ccrma/chuck/pull/150> seems to fix that. > > That said, I don't understand the results I get from AutoCorr. For > periodic inputs, I expect to see periodicity in the output. For small FFT > sample sizes, I see the expected peak at 0, and at large sample sizes I see > a second peak at the end of the window. See example plots at 128 > <https://i.ibb.co/BBZXgBB/autocorr-128.png> and 4096 > <https://i.ibb.co/Mn5fty5/autocorr-4096.png>. That second peak is > correlated with the window size, not the input frequency. > > Thanks to Mario for his gnuplot wrapper > <https://github.com/mariobuoninfante/ChucK_various> that captured those > plots. > > Here's the plotting code if anyone would like to repro: > SinOsc s => FFT fft =^ AutoCorr c => blackhole; > 4400 => s.freq; > 128 => fft.size; > 300::ms => now; > c.upchuck(); > Plot plot; > "autocorrelation of 4400 hz, 128 samples" => plot.title; > plot.plot(c.fvals()); > 200::ms => now; > > Should I be using AutoCorr differently? Am I looking at the power spectrum > or something, and not the correlation vector like I think I am? My current > understanding comes from reading uana_extract.cpp many times with > references like this <http://paulbourke.net/miscellaneous/correlate/>. > > Thanks, > Curtis > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >

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Extending the software ??
by maria p cruz 23 Jul '20

23 Jul '20

Hello, I am Maria, I have been studying for some time at the University of Systems Engineering, and I have programmed some java and common lisp, in addition to C. I understand that SuperCollider and ChucK are open source environments, so I can extend mathematical algorithms, to compose algorithmically, but according to this: Which programming language is best suited to SuperCollider? Which programming language is most suitable for ChucK? ,Maria.

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web integration
by Mícheál Ó Catháin 20 Jul '20

20 Jul '20

hi I'm developing an audiovisual installation to tour a number of arts centres in Ireland. I want to use ChucK to drive the audio elements, linking raspberry pi devices (up to 4) connected via hdmi to screens. The visuals I want to use browsers - probably firefox run off the RPi's. Each screen then displaying a different page from a javascript application run from one of the RPi's. I've done some initial check online of running ChucK wrapped in javascript, and this github page is the latest activity I can find https://github.com/aknuds1/chuck. I thought it best to check with the user community if 1) there are further developments on running ChucK in the browser 2) if the av setup I'm considering has been done before so I could perhaps link in and learn from others 3) if there are better setups that I should be following... Thanks and kind wishes micheal michealocathain.com

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Re: [chuck-users] visualizing UGens and UAnae
by Mario Buoninfante 20 Jul '20

20 Jul '20

You can have dac using multiple channels so that for example you can connect output 3 and 4 to baudline or any other software you want to use. Cheers, Mario -- electronic musician, sound artist, creative coder, QA engineer https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfanteOn 20 Jul 2020 22:12, Curtis Ullerich <curtullerich(a)gmail.com> wrote: > > Thank you! Plot seems like it'll do what I need for now. I wonder if there's a way to tee output to be read by sndpeek or baudline from a graph node other than dac. > > On Mon, Jul 20, 2020 at 2:02 PM Mario Buoninfante <mario.buoninfante(a)gmail.com> wrote: >> >> Also, if you're on Linux I recommend Baudline (http://www.baudline.com/). >> I often just leave it connected all the time. >> >> Cheers, >> Mario >> >> -- >> electronic musician, sound artist, creative coder, QA engineer >> https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfante >> >> On 20 Jul 2020 21:25, Curtis Ullerich <curtullerich(a)gmail.com> wrote: >>> >>> Is there a way to visualize the waveforms in UGens and data/waveforms in UAnae? I was hoping to see something in MiniAudicle. It seems like sndpeek could be useful here. My purpose is for debugging, so it doesn't need to be pretty. I'm dreaming of something that can show any/all units in the graph. >>> >>> Thanks, >>> Curtis

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Re: [chuck-users] visualizing UGens and UAnae
by Mario Buoninfante 20 Jul '20

20 Jul '20

Also, if you're on Linux I recommend Baudline (http://www.baudline.com/). I often just leave it connected all the time. Cheers, Mario -- electronic musician, sound artist, creative coder, QA engineer https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfanteOn 20 Jul 2020 21:25, Curtis Ullerich <curtullerich(a)gmail.com> wrote: > > Is there a way to visualize the waveforms in UGens and data/waveforms in UAnae? I was hoping to see something in MiniAudicle. It seems like sndpeek could be useful here. My purpose is for debugging, so it doesn't need to be pretty. I'm dreaming of something that can show any/all units in the graph. > > Thanks, > Curtis

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Re: [chuck-users] visualizing UGens and UAnae
by Mario Buoninfante 20 Jul '20

20 Jul '20

Hi Curtis Few months ago I was wondering the same and ended up with a temporary solution, a library that uses gnuplot to visualize waveforms. https://github.com/mariobuoninfante/ChucK_various Then it seems that with the latest version of ChucK is now possible again to have Chugins that deal with UIs, but I still have to find the time to look into it. I also mentioned sndpeek not too long ago, and I still thing that should be relatively easy to turn it into a Chugin. Cheers, Mario -- electronic musician, sound artist, creative coder, QA engineer https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com https://github.com/mariobuoninfante https://bitbucket.org/mariobuoninfanteOn 20 Jul 2020 21:25, Curtis Ullerich <curtullerich(a)gmail.com> wrote: > > Is there a way to visualize the waveforms in UGens and data/waveforms in UAnae? I was hoping to see something in MiniAudicle. It seems like sndpeek could be useful here. My purpose is for debugging, so it doesn't need to be pretty. I'm dreaming of something that can show any/all units in the graph. > > Thanks, > Curtis

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