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

bytebeat
by Robert Poor 06 Dec '11

06 Dec '11

Not ChucK specific, but you've got to admire the amount of music generated by one line of code: http://canonical.org/~kragen/bytebeat/ - Rob

3 2

ChucK Language Features
by Colin Sullivan 30 Nov '11

30 Nov '11

Hello all, I have started to build a compositional framework in ChucK and have come across a few language features that seem to be unsupported: - For the types of inheritance structures I am thinking about, it would be incredibly useful if I was able to call a parent class's method from within a child class using something like the `super` keyword. - It would also be really awesome if I could pass a "type" as a parameter. - Not crucial at all, but it would be convenient if subclassing a `UGen` allowed you to use the chuck operator on instances of your class just like other ugens, i.e. `MyPiano p => dac`. I am interested to know if there has been work on these features since the release I am running, and if so where I can go about acquiring a more recent build. If there has not been any development on these features, I would be interested in getting to know the problems a bit more and determining if I can contribute to their development. Are any of these issues inherently difficult due to an aspect of ChucK's implementation? Let me know if I can clarify at all. Thanks! ---------- Colin Sullivan

2 3

pyck == python+chuck
by Tomtom 19 Nov '11

19 Nov '11

Hi people, if anyone is interested, I have published a small program which reproduces chuck's strongly timed programming in python. it's only a proof of concept, you won't get a sound out of it, but it demonstrates how you can get shreds and message passing events in pure python. It means that hypothetically, one could leverage the power of python's expressiveness and massive libraries to do many things (e.g. code modularity, complete object framework, GUIs ...). I hope you will find it interesting. cheers tom

4 5

BlitSaw.period missing
by Kassen 18 Nov '11

18 Nov '11

Fellow ChucKists, I just noticed that BlitSaw (and I assume the other BlitFoo's) doesn't have a .period() member for setting/getting the frequency/period based on cycle-length. I feel they should have this. This would be consistent with the other oscillators (and it's not something that is affected by their nature like -say- hard-sync is), it'd be useful and it would fit with the strongly-timed style of ChucK. Yours, Kas.

1 0

Best way to sync two laptops
by Vilson Vieira 16 Nov '11

16 Nov '11

Hey chuckists! As a part of a live-coding performance we are going to do next Sunday, we are trying to realize the best way to sync two laptops running chuck --loop, each one running their own shreds and sending their own audio output. Any suggestion? Thanks. -- Vilson Vieira vilson(a)void.cc ((( http://automata.cc ))) ((( http://musa.cc )))

4 4

Granul8: UPDATED
by Wolfgang Gil 25 Oct '11

25 Oct '11

Hello everyone, I invested a few minutes today updating the granul8, a simple granular synthesizer i made using the chuck language. I fixed some time-based issues... I usually use in granul8 along with an 8 inputs mixing console and a Motu 828 audio interface. With this setup you will have 8 discrete voices that then you can spatialize and filter independently Enjoy! http://dl.dropbox.com/u/17247286/Granul8.zip -- http://www.wolfganggil.com <http://www.wolfganggil.com/about>

1 0

Syntax Highlight on Windows?
by John Gamboa 22 Oct '11

22 Oct '11

Hello everyone... I've decided to use Chuck lately on a university project and I was wondering if there is any editor that support syntax highlight for Chuck on Windows. I have searched for it in internet but didn't find anything useful D= (sorry if this has an obvious answer and I couldn't figure it out immediately) -- John Gamboa rabanetescebolas.blogspot.com

3 3

Clipping with LiSa
by Timothy Leonido 21 Oct '11

21 Oct '11

Hey All, I'm trying to write a patch that will regularly take new samples from its input. I'm routing itunes to chuck (via soundflower) and manipulating the samples with LiSa. The patch is creating a lot of strange clipping noises— like the sounds of bad guitar cables, which is confusing since this is all internal. Here is my patch, if anyone has any ideas: adc => LiSa loopme => NRev r=> Envelope e=> dac; .05=>r.mix; 10::second => loopme.duration; 10::ms => loopme.recRamp;  1::second => loopme.loopEndRec; .25 => loopme.rate; 1::second => loopme.loopEnd; 1 => loopme.loop; 1 => loopme.bi; 1 => loopme.play; 250::ms => dur t => e.duration; while(true) { e.keyOn(); 1 => loopme.record; 600::ms => now; 400::ms => loopme.recRamp; 400::ms => now; e.keyOff(); 0 => loopme.record; } Sometimes the crackling builds up and gets really abrasive, which some people seem to like. I'd prefer to get rid of it. Thanks! Tim

1 0

granular synthesis in chuck
by konstantinos vasilakos 20 Oct '11

20 Oct '11

Hello Guys, I new to the list and to Chuck as well, I am starting to use this language and see what happens, in creative level, therefore as I am working nowadays to a project using granular synthesis and the wii as a controller I would like to know with which objects or whatever you call that, should I mess around, thank you in advance. Konstantinos Vasilakos

6 16

DelayC (a delay class with cubic interpolation)
by Casper Schipper 19 Oct '11

19 Oct '11

Hi everybody, because I noticed that the DelayA ugen is not interpolating very smoothly (I find its quality to be much worse than DelayL actually, for modulated delay times), I made a DelayC class that uses cubic interpolation (with some critical bug fixing help by Kassen !). It is not very efficient by any standard, but the quality of interpolation is really good, much better than DelayL. My aim is to turn it into a real uGen, if anybody can help with that, would be great ! Best, Casper // Schipper, okt. 2011 class DelayC { Step n; // Output generator UGen @ input; // nullpointer for input ugen 1024 => int delaySize; // delaySize float data[delaySize]; // memory for delayline int wPos; // writing position in the delayline float delay; // delaytime in samples (float) float L1,L0,H0,H1; // the values used to make the spline interpolation. float frac; int index; // position in the buffer UGen @ delaytime; spork ~delayShred(); fun void delayShred() { while(1) { input.last() => data[wPos]; // writing samples clipf(delaytime.last(),2,delaySize-2) => delay; // clipped delaytime (minimum is 2 samples,maximum is delaySize-2) interp(wPos-delay) => n.next; (wPos + 1) % delaySize => wPos; // moving writehead to next sample samp => now; } } // function to make buffer circular fun int wrap(int x) { if (x < 0) return x + delaySize; return x % delaySize; } // three function to connect the delay to other ugens fun void connectInput(UGen ugen) { ugen @=> input; } fun void connectDelayTime(UGen ugen) { ugen @=> delaytime; } fun void connectOutput(UGen ugen) { n => ugen; } // sets the maxsize of the delayline fun void setsize(dur size) { (size / samp) $ int => delaySize => data.size; } // simple clipping function fun float clipf(float x,float min,float max) { if (x < min) return min; else if (x > max) return max; return x; } // 3rd order spline interpolation based on code from http://www.musicdsp.org/showArchiveComment.php?ArchiveID=62 fun float interp(float x) { Math.floor(x) $ int => index; // finding position in buffer x - index => frac; // calc remainder // reading 4 adjecent samples data[wrap(index-2)] => L1; data[wrap(index-1)] => L0; data[wrap(index)] => H0; data[wrap(index+1)] => H1; // interp formula return L0 + .5* frac*(H0-L1+ frac*(H0 + L0*(-2) + L1 + frac*((H0 - L0)*9 + (L1 - H1)*3 + frac*((L0 - H0)*15 + (H1 - L1)*5 + frac*((H0 - L0)*6 + (L1 - H1)*2 ))))); } } //test code DelayC delay; delay.setsize(44100::samp); SinOsc lfo => Gain mod => blackhole; lfo.gain(20000); lfo.freq(.29); Step offset => mod; 22050 => offset.next; Noise testnoise => BPF f => blackhole; 440 => f.freq;1 => f.Q; delay.connectInput(f); delay.connectOutput(dac); delay.connectDelayTime(mod); hour => now;

1 0