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

Re: [chuck-users] Loading ChuGins (from Daniel Meowington)
by Perry Cook 02 Dec '17

02 Dec '17

I don’t have your environment, but some directory should do the trick. On my Mac, it’s in /usr/lib/chuck For now, you could try loading the specific ChuGin by name at runtime: chuck -chugin:<name> yourchuckfiles.ck I put the chugin I want right in the same directory just to make sure. Hope this helps. If it does, then you can probably work backward to finding the right directory to stash them. PRC > On Nov 29, 2017, at 9:00 AM, 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: How do I load ChuGins? (Daniel Meowington) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 28 Nov 2017 19:45:12 -0500 > From: Daniel Meowington <mylenthes(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Subject: Re: [chuck-users] How do I load ChuGins? > Message-ID: > <CAFChw=J2e39XEDepiTacyh8KvVp41wARcq5C02FnrOtQMqsBxg(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Reply to me you scrubs. The default reverbs suck, and I don't feel like > learning how to make a highly configurable reverb from scratch. > > On Mon, Nov 20, 2017 at 12:15 AM, Daniel Meowington <mylenthes(a)gmail.com> > wrote: > >> I'm on arch linux. Chuck and miniAudicle version 1.3.5.2. >> >> I installed the entire collection from git. Trying in miniAudicle to use >> `GVerb` or any other ChuGin for that matter outputs the message "undefined >> type 'GVerb'...". >> >> I also tried the command line by setting chugin-load to auto, setting the >> path, doing `chugin:GVerb`, none of which worked, all give the same message. >> >> I doubled checked and they are indeed in my /usr/local/lib/chuck folder. >> >

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jobs at the Columbia University Computer Music Center
by Brad Garton 02 Dec '17

02 Dec '17

Hello chuck-ers! We have just announced two open positions at the CMC: one is for the Assistant Director of the CMC, and the other is a faculty search for the Director of our Sound Art program. I've included the announcements below. Please pass these along to anyone you think might be interested. Thanks! Brad Garton Columbia University Music Department Director, CMC ------------------------------------------------- Assistant Director, Computer Music Center and Sound Art Program (Officer Grade 12) Close Date: Open Until Filled to apply: jobs.columbia.edu/applicants/Central?quickFind=166090 Job Summary Reporting to the Director of the Computer Music Center (CMC) the assistant director is responsible for supervising and managing the operation of a complex array of uniquely configured computer-music systems necessary to undergraduate and graduate course offerings, and to faculty or visiting researchers and composers. Computer Music Center (CMC) The assistant director is directly responsible for the efficient operation of all CMC studios and spaces. The assistant director uses his or her expertise in subject matter as well as experience managing similar functional spaces to assess user needs and present proposals to CMC Director for selection and purchase of appropriate new hardware and software. Sound Art Program Work with Visual Arts administration in the School of the Arts to schedule Sound Art classes. Work with deans of School of the Arts, to promote and manage the administration and operations of the Sound Art program. Act as a primary point of contact and coordinates activities and purchases with related entities including CMC/Music/Visual Arts to ensure smooth, efficient and cost-effective operations. Operations Management CMC and Sound Art Program Manage and maintain all CMC and Sound Art equipment; this includes managing current checkout system for equipment, room scheduling, and the maintenance of existing equipment. Requests and schedules needed summer maintenance; oversees and ensures the completion of necessary tasks such as cleaning and painting the walls and floors of the project spaces, and the restocking of supplies for the common areas and offices used by the CMC and the Sound Art program. Financial Management CMC and Sound Art Program: Financial, budgets, and purchasing: The assistant director is responsible for creating and managing budgets, endowments, and grants for the CMC. This includes approving CMC transactions, performing regular reconciliation, developing and adjusting budgets and reports as needed. Responsible for purchasing supplies and equipment and processing all paperwork processed to Purchasing and to the Office of the Controller. S/he is responsible for trouble-shooting and resolving financial issues. Works closely with the Music Department’s administration to complete year-end and budgeting activities as needed. Supervises work-study and casual employees as related to maintenance and operation. Preferred qualifications: Advanced degree in Music/Audio with specialized knowledge in computer music. Knowledge of ARC, Budgeting Tool and other Columbia financial systems. Columbia University is an Equal Opportunity/Affirmative Action employer. Columbia University is committed to the hiring of qualified local residents. ------------------------------------------------- ------------------------------------------------- Assistant /Associate Professor in Visual Arts (Sound Art), tenure-track or Assistant /Associate Professor of Professional Practice in Visual Arts (Sound Art) The Visual Arts Program of the School of the Arts, in collaboration with the Department of Music, seek to fill the position of Assistant or Associate Professor of the Arts or Assistant or Associate Professor of Professional Practice of the Arts in the School of the Arts, Columbia University, effective 1 July 2018. The successful candidate will have a vibrant studio practice in sound art with a demonstrated ability to teach and mentor graduate students. The incumbent will oversee the Sound Art Program working closely with faculty in the Department of Music's Center for Computer Music and the Visual Arts faculty in the School of the Arts. Candidates may be appointed on professional practice or tenure track at the discretion of the Dean. Candidates for Assistant/Associate Professor of the Arts (tenure-track) must have a demonstrated capacity for creative work and exhibit the potential for continuing to make influential professional or artistic contributions, as well as significant contributions to their areas of pedagogy. Graduate teaching experience required. Candidates for Assistant/Associate Professor of Professional Practice of the Arts must have a demonstrated capacity for creative work and exhibit the potential for continuing to make significant contributions to their areas of professional practice and accompanying pedagogy. Graduate teaching experience required. A bachelors degree or equivalent is required. MFA/DMA or advanced degree is preferred. The school is especially interested in qualified candidates whose record of achievement will contribute to the diversity goals of the institution. For more information and to apply for this position, please visit our online site at: https://academicjobs.columbia.edu/applicants/Central?quickFind=65509 Review of applications will begin 15 January 2018 and continue until the position is filled. Columbia University is an Equal Opportunity/Affirmative Action employer. -------------------------------------------------

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How do I load ChuGins?
by Daniel Meowington 28 Nov '17

28 Nov '17

I'm on arch linux. Chuck and miniAudicle version 1.3.5.2. I installed the entire collection from git. Trying in miniAudicle to use `GVerb` or any other ChuGin for that matter outputs the message "undefined type 'GVerb'...". I also tried the command line by setting chugin-load to auto, setting the path, doing `chugin:GVerb`, none of which worked, all give the same message. I doubled checked and they are indeed in my /usr/local/lib/chuck folder.

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Can I use ADSR UGen to envelope parameters other than gain (e.g. pitch)?
by Jean Menezes da Rocha 01 Nov '17

01 Nov '17

Hello, the ADSR UGen, to me, seems to have effect only over amplitude (which is its original function, I concede). However, is there any use case where I can use ADSR to map, say, pitch instead of amplitude, in order to avoid recurring to functions and for loops? Thanks in advance! -- Jean Menezes da Rocha Compositor Professor Doutorando em Música pela Universidade Federal da Bahia

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DSP question: accumulating frequency info using FFT?
by Jascha Narveson 15 Oct '17

15 Oct '17

Chuck list! Help! I have the following idea and I’d like to hear what it sounds like: - play a sound into an FFT - as the FFT runs, for each bin: - - look at the magnitude info - - take a small fraction of this info and store it in a running total - - let the phase pass through unchanged - use the spectral data in the running total for the IFFT What I was hoping for was a slow emerging smear of all the frequencies from the input sound, kind of like a weird version of some kind of “infinite sustain” reverb. What I’m getting is the attacks of the original sound coming through, although fading in, and covered with noise. I think I’m doing something wrong by not doing something with the phase, but I’m not sure what. I’d love some advice… cheers, j - - - - c o d e e x a m p l e - - - - SinOsc synth => FFT fft => blackhole; UAnaBlob blob; IFFT ifft => dac; synth.freq(440); synth.gain(0.1); // set parameters 2048 => fft.size; // place to hold the FFT data as it comes in complex spec[fft.size()/2]; // place to store the accumulated FFT data, preload with zeroes complex acc[fft.size()/2]; for(0 => int i; i < acc.cap(); i++) { #(0, 0) => acc[i]; } // do it! spork ~ sawTune(); spork ~ accumulateFrequenciesViaFFT(); while (true) { 1::second => now; } fun void accumulateFrequenciesViaFFT() { while( true ) { fft.upchuck() @=> blob; // get the data blob.cvals() @=> spec; // for every bin... for(0 => int i; i < spec.cap(); i++) { // get the mag/phase for each bin by converting to polar spec[i] $ polar => polar newBin; // and get our running totals from acc acc[i] $ polar => polar accBin; // scale the inocming mag and add it to acc newBin.mag * 0.001 +=> accBin.mag; // let phase pass through newBin.phase => accBin.phase; /*Math.random2f(0, TWO_PI) => accBin.phase;*/ // convert back to complex and put back in the acc array accBin $ complex => acc[i]; } ifft.transform(acc); fft.size()::samp => now; } } fun void sawTune() { while (true) { Math.random2(48, 72) => int midinote; Math.mtof(midinote) => synth.freq; 333::ms => now; } }

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Chuck Racks
by Spencer Salazar 14 Oct '17

14 Oct '17

Greetings, I would like to announce the first official beta release of Chuck Racks: http://mtiid.calarts.edu/projects/software/chuck-racks/ ChucK Racks makes it possible to write and execute ChucK programs as VST/AudioUnit plugins. The ChucK Racks architecture supports the following features: - Process incoming audio in ChucK (i.e. Audio FX plugins) - Process MIDI events from the host in ChucK programs (MIDI FX plugins) - Write synthesis plugins in ChucK that run as regular synthesizer audio plugins in a host/DAW - Synchronize clock and beat-time between a host/session and ChucK - Generate new MIDI/OSC events from ChucK (e.g. writing MIDI/OSC sequencer plugins) - Automate variables in ChucK code using host automation lanes Chuck Racks was developed by Jordan Hochenbaum, Rodrigo Sena, and myself here at CalArts. Enjoy and please feel free to let us know of any feedback! Regards, Spencer -- Spencer Salazar, PhD Special Faculty Music Technology: Interaction, Intelligence, and Design California Institute of the Arts ssalazar(a)calarts.edu | +1 831.277.4654 https://spencersalazar.com

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linux build failure, qt5 support?
by Colleen Josephson 13 Oct '17

13 Oct '17

I'm trying to run 'make linux-jack' in miniAudicle1.3.5.2's source directory, and the build fails nearly immediately with: which: no qmake-qt4 in (/home/cjoseph/anaconda2/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/x86_64-pc-linux-gnu/gcc-bin/4.9.3:/usr/x86_64-pc-linux-gnu/avr/gcc-bin/4.8.2:/usr/x86_64-pc-linux-gnu/gnat-gcc-bin/4.3:/usr/libexec/gnat-gcc/x86_64-pc-linux-gnu/4.3:/usr/games/bin:/usr/local/ec2/ec2-api-tools-1.6.13.0/bin:/home/cjoseph/piran/platform_util) .... In file included from qt/mAMainWindow.cpp:25:0: qt/mAMainWindow.h:28:23: fatal error: QMainWindow: No such file or directory #include <QMainWindow> The website just specifies qt4.8+, I currently have Qt 5.6.2. Is there any QT5 support? QT5 has been out for 5 years now and it's nearly impossible to downgrade, so I am really hoping the answer is yes! Thanks, -Colleen

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what exactly is tuned feedback?
by Michael Heuer 12 Oct '17

12 Oct '17

All, The Dave Smith DSM03 Feedback module has what is described as tuned feedback https://www.davesmithinstruments.com/product/dsm03-feedback-module/ I have the same question as was posted here "I'm trying to understand what 'tuned feedback' means -- does this mean the signal enters a delay line that lasts one cycle of a certain pitch? (So, say, a 50Hz sound is a 20ms delay line.) Does this end up reinforcing that pitch when you hear the sound? (I guess it would reinforce multiples of the pitch too, but less so.)" https://www.kvraudio.com/forum/viewtopic.php?p=1673572&sid=ae6a060ebaffea26… Thanks! michael

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Wrap/Modulo UGen
by mario buoninfante 02 Aug '17

02 Aug '17

Hi All, do you guys know if there's a Modulo/Wrap Ugen? I'd like to use the same Phasor to read 2 or more different arrays (Wavetable UGen), but I must read them from a different starting point. cheers, Mario

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Re: [chuck-users] phase modulation and hard sync?
by mario.buoninfante 05 Jun '17

05 Jun '17

Hi Alexandre, If you look at the complete formula here (under "spectral analysis" - for sure it is better then my explanation): https://en.wikipedia.org/wiki/Frequency_modulation_synthesis?wprov=sfla1 You can see that alongside the Carrier Frequency there's the phase. This one is a sine wave (that goes from -1 to 1). Now we can consider SinOsc on ChucK, the same that the first sin in the formula above. Everything is feeding SinOsc in ChucK can be considered the same that all the stuff into parenthesis. Thus the argument you pass to SinOsc ( oscil.freq(certainFreq) ) is the Carrier Frequency (a fixed argument) and the the signal coming out from the Fm oscillator (scaled with a given value Am/Fm or ModInd, it is the same) is modulation factor that makes the Carrier Freq oscillate. Now 2pi is needed only if you deal with a ramp, with a phasor. Cause Phasor*2pi gives you a sine. If you already have a sine there is no need to use 2pi. Cheers, Mario Sent from my Wiko ROBBYOn Jun 4, 2017 17:20, Alexandre Torres Porres <porres(a)gmail.com> wrote: > > 2pi is already there if you are using a phase input, cause it seems the phase is normalized (0 to 1 instead of 0 - 2pi) in Chuck. > > What I mean is how to implement the same result with both frequency and phase modulation in a Chuck code, using SinOsc. > > All these things have to be adjusted > > But if the phase input wasn't normalized to 0-1, like is the case with SuperCollider, you don't need it. > > cheers > > 2017-06-04 13:09 GMT-03:00 mario.buoninfante <mario.buoninfante(a)gmail.com>: >> >> Hi Alexandre, >> >> In my implementation there's no need to use 2pi. That is required if you're using a phasor (in math terms). In that case you need 2pi to have the angular frequency. But if you're using instead a Sine wave there's no need, cause 2pi is already there. >> Looking at the formula I posted before, the Fm oscillator is the phase parameter, while the Cm is the frequency. You can consider them as an offset (Cm) and an deviation from it (Fm). >> The index mod is equal to Am/Fm, but of course the parameter that you can use with an oscillator is the amplitude (Am), thus from the previous one you have Am = Fm*modInd >> >> Cheers, >> Mario >> >> Sent from my Wiko ROBBY >> >> On Jun 4, 2017 16:39, Alexandre Torres Porres <porres(a)gmail.com> wrote: >>> >>> btw, for adjusting the index, you're just multiplying the frequency to the index, you should also multiply it by 2pi (like Jean found out by accident). >>> >>> >>> 2017-06-04 12:29 GMT-03:00 Alexandre Torres Porres <porres(a)gmail.com>: >>>> >>>> >>>> >>>> 2017-06-04 4:24 GMT-03:00 mario buoninfante <mario.buoninfante(a)gmail.com>: >>>>> >>>>> this is the simplest modulation, that usually is considered as FM, but in the end is a PM. >>>> >>>> Well, as I see it, it should be either FM or PM, it can't be one but in the end is something else. And your code is can only (not usually) be considered FM. >>>> >>>> But it seems you're saying both are related, without getting into details - which is something we've already discussed here, and I've also pointed out (with no details either). But the bottom line is that they're different, and the same input parameters generate different results. Though I've said before the parameters can be "converted"/"adjusted" to sound the same. >>>> >>>> Namely, the same modulation index does not generate the same result (Jean noticed that), and I can add the detail that the same modulating signal/waveform generate different results too. For example, a triangular wave modulating the phase is the same as a square wave modulating the frequency. So, they're quite different. >>>> >>>> In terms of sine waves, what we've been doing so far, if you modulate the phase with a sine wave, you need to modulate the frequency with a cosine wave. >>>> >>>> Like I pointed before, if you're going for a phase modulation implementation, you should just modulate the phase instead of trying to replicate it via frequency modulation, cause it's just more convenient to do directly via phase modulation if you want it to behave like that. >>>> >>>> And that not

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