June 2018 - 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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Chugin/Faust issue
by mario buoninfante 20 Jun '18

20 Jun '18

Hi, I'm having issue with a chugin generated with faust2ck. I'm on a 64bit Linux machine (Ubuntu Studio 16.04) and I created a simple /sample and hold/ component in Faust (SampleAndHold.dsp that contains /declare name "SampleAndHold"//;/) and then turned it into a chugin using faust2ck. everything seems fine, my /SampleAndHold.chug/ is generated, but unfortunately I cannot use it in ChucK (console: /undefined type 'SampleAndHold'.../) . I copied it into the chugin folder and also tried launching ChucK with -gSampleAndHold . does anyone have any experience with faust2ck? am I missing something? cheers, Mario

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FLOSS manual on floss website
by mario buoninfante 20 Jun '18

20 Jun '18

Hi, in the next days the ChucK manual we'll be brought back to http://flossmanuals.net (there's always been a version there, in the meanwhile on the new platform we were updating a copy of it). as I reported here when I started working on it, at that time I've been asked to test a new platform for editing (https://omnibook.pro). now it looks like it's time to bring it back to the main site ;) FYI everyone can follow the discussion here: http://lists.flossmanuals.net/pipermail/discuss-flossmanuals.net/ I'll keep you posted. cheers, Mario

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Re: [chuck-users] Chugin/Faust issue
by mario.buoninfante 20 Jun '18

20 Jun '18

Hi Spencer, Thanks, that'd be great :) Cheers, Mario Sent from my Wiko ROBBYOn Jun 19, 2018 21:41, Spencer Salazar <spencer.salazar(a)gmail.com> wrote: > > Yep, the faust2ck needs to have its chuck submodule updated to use the latest chuck headers, although it seems a bit messier than that since the structure of the headers changed. I will look in to it! > > Spencer > > > -- > > Spencer Salazar, PhD > spencer(a)spencersalazar.com | 831.277.4654 > https://spencersalazar.com > > > On Mon, Jun 18, 2018 at 7:18 AM, Mario Buoninfante <mario.buoninfante(a)gmail.com> wrote: >> >> Hi Casper, >> >> that's a really good point, in fact I had to do the same with my chugins after installed ChucK 1.4.0.0 >> I'll double check. >> >> cheers, >> Mario >> >> On 18 June 2018 at 10:49, Casper Schipper <casper.schipper(a)gmail.com> wrote: >>> >>> correction: I meant 1.3.5.2, 1.3.6.0 is actually pretty much identical to 1.4.0.0 according to changelog. >>> >>> best, >>> Casper >>> >>> On Mon, Jun 18, 2018 at 11:47 AM, Casper Schipper <casper.schipper(a)gmail.com> wrote: >>>> >>>> Hi Mario, >>>> >>>> Cannot say with 100% certainty, but it could be that Faust is including a slightly older version of chuck_dl.h when building the chugin ? >>>> Chugins built with Version 1.3.6.0 are no longer compatable with 1.4.0.0, I also had to recompile my own chugins because of this. >>>> >>>> Best, >>>> Casper >>>> >>>> On Sat, Jun 16, 2018 at 8:38 PM, mario buoninfante <mario.buoninfante(a)gmail.com> wrote: >>>>> >>>>> Hi, >>>>> >>>>> >>>>> I'm having issue with a chugin generated with faust2ck. I'm on a 64bit Linux machine (Ubuntu Studio 16.04) and I created a simple sample and hold component in Faust (SampleAndHold.dsp that contains declare name "SampleAndHold";) and then turned it into a chugin using faust2ck. everything seems fine, my SampleAndHold.chug is generated, but unfortunately I cannot use it in ChucK (console: undefined type 'SampleAndHold'...) . I copied it into the chugin folder and also tried launching ChucK with -gSampleAndHold . >>>>> >>>>> does anyone have any experience with faust2ck? am I missing

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Sound glitches at the start of descending tones
by Forrest Cahoon 20 Jun '18

20 Jun '18

I'm attempting to play with descending tones, but I'm having artifacts at the beginning of the sound. I tried to start with a gain of 0 but this does not prevent the glitch. I've used various sorts of oscillators; when I use SinOsc there is just a glitch at the very beginning of the sound, but with SqrOsc and others there is what sounds sort of like LFO amplitude modulation for maybe even a second into the sound. Here is my code. How do I fix this? SqrOsc r => dac; // also try SinOsc, TriOsc, and SawOsc 300.0 => float STARTING_FREQ; 10000 => int OCTAVE_STEPS; for (0 => int i; i < OCTAVE_STEPS ; i++) { // making an envelope by manipulating the gain if (i < 100) { i * 0.005 => r.gain; } else if (i > OCTAVE_STEPS - 100) { (OCTAVE_STEPS - i) * 0.005 => r.gain; } else { 0.5 => r.gain; } // constantly falling frequency if (i == 0) { STARTING_FREQ => r.freq; } else { STARTING_FREQ * Math.pow(2.0, -1.0 * Math.log2((1.0*i)/(1.0*OCTAVE_STEPS))) => r.freq; } 1::ms => now; }

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Re: [chuck-users] New to ChucK: can this be done easily?
by mario.buoninfante 19 Jun '18

19 Jun '18

Hi, I've never tried to use CSV files with ChucK, an alternative could be use a common txt file with FileIO like you said. About the interpolation an easy way could be using Step and Envelope to set both freq and amplitude of the oscillators. Cheers, Mario Sent from my Wiko ROBBYOn Jun 10, 2018 22:35, Forrest Cahoon <forrest.cahoon(a)gmail.com> wrote: > > Hi ChucKers! > > I have a sonification project that I'm wondering if it makes sense to do in ChucK. > > I have a csv file with frequencies and amplitudes for 4 different sine waves, representing values at (say) half-second intervals. I want to read in a line, and then smoothly change the frequency and amplitude values using linear interpolation over the course of 24000 samples (a half second at 48k samples per second), then read in the next line, and smoothly change to those values over the next half-second, etc. until the data runs out. > > I could code this in C using libsndfile, but if I didn't have to worry about converting frequencies into phase distances between samples I'd consider that a win. > > I noticed Chuck has FileIO methods to read input files (although these are very poorly documented) so thought it should be possible to read in a csv file. > > I could calculate the amount of frequency and amplitude change per sample and adjust these in a 1-sample loop, and that's already simpler than coding in C. But I'm hoping there's some way to tell ChucK "I want this (e.g. frequency) value to change smoothly from its current value to f1 over the course of a half-second". If that were possible, ChucK would be a clear choice for my project. > > Thanks for any response! > > Forrest Cahoon >

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New to ChucK: can this be done easily?
by Forrest Cahoon 10 Jun '18

10 Jun '18

Hi ChucKers! I have a sonification project that I'm wondering if it makes sense to do in ChucK. I have a csv file with frequencies and amplitudes for 4 different sine waves, representing values at (say) half-second intervals. I want to read in a line, and then smoothly change the frequency and amplitude values using linear interpolation over the course of 24000 samples (a half second at 48k samples per second), then read in the next line, and smoothly change to those values over the next half-second, etc. until the data runs out. I could code this in C using libsndfile, but if I didn't have to worry about converting frequencies into phase distances between samples I'd consider that a win. I noticed Chuck has FileIO methods to read input files (although these are very poorly documented) so thought it should be possible to read in a csv file. I could calculate the amount of frequency and amplitude change per sample and adjust these in a 1-sample loop, and that's already simpler than coding in C. But I'm hoping there's some way to tell ChucK "I want this (e.g. frequency) value to change smoothly from its current value to f1 over the course of a half-second". If that were possible, ChucK would be a clear choice for my project. Thanks for any response! Forrest Cahoon

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ChucK FLOSS - MIDI reference
by Mario Buoninfante 02 Jun '18

02 Jun '18

Hi everybody, I added a new chapter to the ChucK FLOSS manual, MIDI Reference https://omnibook.pro/chuck/_full/#midi at the moment there are info about MIDI also under the Event Reference, which I don't wanna touch for now. anyway, there are a couple of classes I've never seen before, MidiMsgIn, MidiMsgOut and MidiFileIn, has anyone ever used them? cheers, Mario

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