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Re: [chuck-users] Filters and filter education
by Stuart McDonald 04 Jun '14

04 Jun '14

Thanks Julius and Spencer for your suggestions. I think I have a better handle now, but still reading and reading and reading (and taking rather too long to reply). Stuart On Fri, May 23, 2014 at 11:16 PM, <chuck-users-request(a)lists.cs.princeton.edu> wrote: > I like to think of phasing as an approximation to and generalization of flanging, which is easier to understand. In both cases you are basically mixing two copies of the input signal where one copy is delayed relative to the other. This relative delay causes cancellation ("notches") at frequencies where the two signals are out of phase. > > - Julius > --------------------------------- > > Honestly it can take a few readthroughs (of different books even) for it all to sink in. > > Julius also some discussion on implementing a phaser: > https://ccrma.stanford.edu/~jos/pasp/Virtual_Analog_Example_Phasing.html > and (related, simpler) flanging: > https://ccrma.stanford.edu/~jos/pasp/Flanging.html > > spencer

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=<
by vilbjørg broch 03 Jun '14

03 Jun '14

hello what exactly is this operator =< i cannot get my eyes on a reference for it.. it appears in the example powerup.ck in the 'shred' folder by the way this example seems to offer a way/structure for spreading processing load over several cpus, if someone has examples of other ways to spread loads over more cpus then I would be very interested in seeing this. greetings Vilbjørg

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chuck-users archive?
by David Loberg Code 02 Jun '14

02 Jun '14

Does anyone know what happened to the Chuck-users archive? If I go to: http://lists.cs.princeton.edu/pipermail/chuck-users/ (or any specific archived message https://lists.cs.princeton.edu/pipermail/chuck-users/2014-May/007607.html It auto-forwards to this URL: https://lists.cs.princeton.edu/mailman/listinfo david David Loberg Code School of Music Western Michigan University 1903 W Michigan Ave Kalamazoo, MI 49008-5434 code(a)wmich.edu

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Re: [chuck-users] Musical Pieces (Bryan Green)
by Perry R Cook 29 May '14

29 May '14

Bryan, Here's a self-contained, single ChucK file, version of "Smooth Criminal" //**************************************************** // Smooth Criminal Tribute, by P. Cook, May 3, 2009 // because I should be doing more important things // like reading Tom Lieber's Independent work final report :-) 0.1 => float tempo; Mandolin bass1 => HalfRect clip => Gain main => dac; Mandolin bass2 => clip; bass1 => main; bass2 => main; Impulse kick => TwoPole kp => main; 50.0 => kp.freq; 0.99 => kp.radius; 0.1 => kp.gain; Noise n => ADSR snare => TwoPole sp => Delay sdel => main; 200.0 => sp.freq; 0.9 => sp.radius; 0.1 => sp.gain; snare.set(0.001,0.1,0.0,0.1); (4.0 * tempo) :: second => sdel.max => sdel.delay; 0.3 => bass1.bodySize => bass2.bodySize; 0.03 => bass1.stringDetune; 0.03 => bass2.stringDetune; 0.05 => bass1.stringDamping; 0.05 => bass2.stringDamping; SndBuf dope => main; "special:dope" => dope.read; 0.0 => dope.gain; SndBuf dope2 => main; "special:dope" => dope2.read; 0.0 => dope2.gain; Blit b => TwoPole p1 => Gain voice; b => TwoPole p2 => voice; b => TwoPole p3 => voice; 100 => b.harmonics; 0.998 => p1.radius => p2.radius => p3.radius; 0.03 => p1.gain; 0.01 => p2.gain; 0.01 => p3.gain; 0.0 => b.gain; SinOsc vib => blackhole; 6.0 => vib.freq; Std.mtof(60) => b.freq; Std.mtof(64) => float bTarg; doVerse(4); doChorus(4); spork ~ doMoogy(4); doVerse(4); doChorus(4); spork ~ gliss(); doTag(); spork ~ fade(); spork ~ doMoogy(4); doDopeVerse(4); fun void doMoogy(int howmany) { Moog m => JCRev r => main; 0.9 => m.filterQ; 0.9 => m.filterSweepRate; 0.05 => r.mix; 15.0 => r.gain; [69, 71, 72, 74, 76, 78, 79, 81] @=> int scale[]; 0 => int measure; 0 => int note; while (measure < howmany) { 0 => int note; while (note < 32) { 1 => m.noteOff; Std.mtof(scale[Std.rand2(0,7)]) => m.freq; if (Std.rand2f(0.0,1.0) < 0.4) 1 => m.noteOn; tempo :: second => now; note++; } measure++; } r =< main; } fun void doChorus(int howmany) { [64,64,64,64,64,64,67,64,64,64,67,64,64,64,62,60,59,60] @=> int dopes[]; [ 1, 1, 1, 1, 1, 1, 2, 4, 1, 1, 2, 4, 1, 1, 2, 2, 2, 2] @=> int ddurs[]; 0 => int measure; 0 => int note; 3.0 => dope.gain; while (measure < howmany) { Std.mtof(41) => bass1.freq; 1 => bass1.noteOn; Std.mtof(41-12) => bass2.freq; 1 => bass2.noteOn; (2.0 * tempo) :: second => now; 0 => int note; while (note < 18) { 1.03 * (Std.mtof(dopes[note]) / Std.mtof(67)) => dope.rate; 0 => dope.pos; (tempo*ddurs[note]) :: second => now; note++; } measure++; } } fun void doVerse(int howmany) { [45,45,45,45,45,45,45,47,47,47,47,48,48,48,48,47,43,40,45] @=> int notes[]; [ 2, 1, 1, 1, 1, 1, 1, 2, 4, 1, 1, 2, 4, 1, 1, 2, 2, 2, 2] @=> int durs[]; [ 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0] @=> int kicks[]; [ 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0] @=> int snares[]; 0 => int note; 0 => int measure; while (measure < howmany) { Std.mtof(notes[note]) => bass1.freq; Std.mtof(notes[note]-12) => bass2.freq; 1 => bass1.noteOn; 1 => bass2.noteOn; if (kicks[note]==1) 1 => kick.next; if (snares[note]==1) 1 => snare.keyOn; (durs[note] * tempo/2.0) :: second => now; 0 => bass1.noteOn => bass2.noteOn; 1 => snare.keyOff;; (durs[note] * tempo/2.0) :: second => now; note++; if (note==19) { 0 => note; measure++; } } } fun void doTag() { [64,60,62,64,40,64,60,62,64,40] @=> int dopes2[]; [ 2, 2, 2, 2, 4, 2, 2, 2, 2, 4] @=> int ddurs2[]; 0 => int measure; 0 => int note; 3.0 => dope.gain; 3.0 => dope2.gain; while (note < 10) { 1.03 * (Std.mtof(dopes2[note]) / Std.mtof(67)) => dope2.rate; dope2.rate()*2.0 => dope.rate; 0 => dope2.pos; 0 => dope.pos; (tempo*ddurs2[note]) :: second => now; note++; } 0.0 => dope2.gain; Noise n => main; 0.1 => n.gain; 0.07 :: second => now; n =< main; 0.03 :: second => now; 4.0 => b.gain; voice => main; Std.mtof(76) => dope2.rate; 0 => dope2.pos; 0.4 :: second => now; 300.0 => p1.freq; 900.0 => p2.freq; 2300.0 => p3.freq; Std.mtof(62) => bTarg; 0.1 :: second => now; 360.0 => p1.freq; 2000.0 => p2.freq; 2600.0 => p3.freq; 0.03 => p1.gain; 0.03 => p2.gain; 0.03 => p3.gain; Std.mtof(60) => bTarg; 0.1 :: second => now; 700.0 => p1.freq; 1100.0 => p2.freq; 2500.0 => p3.freq; Std.mtof(57) => bTarg; 0.2 :: second => now; 700.0 => p1.freq; 1200.0 => p2.freq; 2500.0 => p3.freq; 0.0 => b.gain; voice =< main; } fun void gliss() { while (1) { (0.01* bTarg) + (0.99 * b.freq()) => b.freq; 0.0005 :: second => now; } } fun void fade() { while (1) { (0.985 * main.gain()) => main.gain; 0.04 :: second => now; } } fun void doDopeVerse(int howmany) { [45,45,45,45,45,45,45,47,47,47,47,48,48,48,48,47,43,40,45] @=> int notes[]; [ 2, 1, 1, 1, 1, 1, 1, 2, 4, 1, 1, 2, 4, 1, 1, 2, 2, 2, 2] @=> int durs[]; [ 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0] @=> int kicks[]; [ 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0] @=> int snares[]; 0 => int note; 0 => int measure; 3.0 => dope.gain; while (measure < howmany) { Std.mtof(notes[note]) => bass1.freq; 4.1 * (Std.mtof(notes[note]) / Std.mtof(67)) => dope.rate; 0 => dope.pos; Std.mtof(notes[note]-12) => bass2.freq; 1 => bass1.noteOn; 1 => bass2.noteOn; if (kicks[note]==1) 1 => kick.next; if (snares[note]==1) 1 => snare.keyOn; (durs[note] * tempo/2.0) :: second => now; 0 => bass1.noteOn => bass2.noteOn; 1 => snare.keyOff;; (durs[note] * tempo/2.0) :: second => now; note++; if (note==19) { 0 => note; measure++; } } }

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ChucK - Musical Pieces?
by Bryan Green 26 May '14

26 May '14

Hello, all! As the example files included with ChucK don't really demonstrate full pieces, I was wondering if there is a source of ChucK pieces available; that is, ChucK files, that when run, 'perform' a complete piece. I've got the basics of ChucK down, but now I'm trying to wrap my head around the various ways of actually creating a complete, algorithmic piece of music, and would love to see some examples! Thanks! Bryan

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Re: [chuck-users] Filters and filter education
by Stuart McDonald 23 May '14

23 May '14

Hi Rich, thanks for those links, I'll check them out :). ---------- Forwarded message ---------- From: "Rich Caloggero" <rjc(a)mit.edu> To: <chuck-users(a)lists.cs.princeton.edu> Cc: Date: Thu, 22 May 2014 17:11:45 -0400 Subject: Re: [chuck-users] Filters and filter education This may help: http://www.analog.com/en/content/scientist_engineers_guide/fca.html The subject is daunting. I'm a computer person so I understand the computer bits, but the math is still a stretch for me. This guy does a good job explaining things both in words and in code. Best part is that its free and available online, or you can download the html. -- Rich

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Filters and filter education
by Stuart McDonald 22 May '14

22 May '14

I've been periodically fussing over trying to construct a phaser (the effect, not the fictional weapon) and while there's a working ChucKian example at http://electro-music.com/forum/viewtopic.php?t=23264 , I'd like to understand more about what's going on. The example uses a PoleZero filter, which may as well be called PixieWand for all I know what it actually does. There are numerous other filter UGens as well; I think there may be a whole world of filtration out there I can't even imagine. The ChucK documentation doesn't provide descriptions of the mechanics of these filters. I get the impression that they're things you're expected to understand if you have a formal background in DSP, and if you don't, well, it's a bit of a leap to get there. For now I'm optimistic I can get educated in some way. A 2006 post on this subject on this list (https://lists.cs.princeton.edu/pipermail/chuck-users/2006-June/000763.html) suggested reading Real Sound Synthesis for Interactive Applications (http://www.amazon.com/Real-Sound-Synthesis-Interactive-Applications/dp/1568…) by Perry R. Cook. The book looks promising, but I'm not sure if it tackles the subject to a depth that would be helpful. Has anyone read it and could recommend? Perry, what do you reckon? =D Many thanks, Stuart

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Re: [chuck-users] Filters and filter education
by Julius Smith 22 May '14

22 May '14

I like to think of phasing as an approximation to and generalization of flanging, which is easier to understand. In both cases you are basically mixing two copies of the input signal where one copy is delayed relative to the other. This relative delay causes cancellation ("notches") at frequencies where the two signals are out of phase. - Julius At 02:55 AM 5/22/2014, Stuart McDonald wrote: >I've been periodically fussing over trying to construct a phaser (the >effect, not the fictional weapon) and while there's a working ChucKian >example at http://electro-music.com/forum/viewtopic.php?t=23264 , I'd >like to understand more about what's going on. > >The example uses a PoleZero filter, which may as well be called >PixieWand for all I know what it actually does. There are numerous >other filter UGens as well; I think there may be a whole world of >filtration out there I can't even imagine. > >The ChucK documentation doesn't provide descriptions of the mechanics >of these filters. I get the impression that they're things you're >expected to understand if you have a formal background in DSP, and if >you don't, well, it's a bit of a leap to get there. > >For now I'm optimistic I can get educated in some way. A 2006 post on >this subject on this list >(https://lists.cs.princeton.edu/pipermail/chuck-users/2006-June/000763.html) >suggested reading Real Sound Synthesis for Interactive Applications >(http://www.amazon.com/Real-Sound-Synthesis-Interactive-Applications/dp/1568…) >by Perry R. Cook. > >The book looks promising, but I'm not sure if it tackles the subject >to a depth that would be helpful. Has anyone read it and could >recommend? Perry, what do you reckon? =D > >Many thanks, > > >Stuart >_______________________________________________ >chuck-users mailing list >chuck-users(a)lists.cs.princeton.edu >https://lists.cs.princeton.edu/mailman/listinfo/chuck-users Julius O. Smith III <jos(a)ccrma.stanford.edu> Professor of Music and, by courtesy, Electrical Engineering CCRMA, Stanford University http://ccrma.stanford.edu/~jos/

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How to ramp pitch?
by Bonnie Eisenman 22 May '14

22 May '14

Hi all, sorry if this question has been answered before, but I can't find it in the docs. I'd like to ramp a pitch quickly from one frequency to another. I feel like there should be a better way to do this than what I'm currently using, which is this: // Where length is the # of milliseconds this should take for (0 => int i; i < length $ int; i++) { f1 - ((i/length) * (f1 - f2)) => float newFreq; osc.freq(newFreq); 1::ms => now; } This works but it produces an unfortunate clicking noise at the end (and yup, I'm using an envelope). Any tips? Thanks! --Bonnie

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Question about new OSC support classes - OscIn
by Simon Steptoe 17 May '14

17 May '14

I was looking at the new Osc support classes. When using OscIn, I can't seem to receive more than the first character of a string. If I replace the OscIn code with the equivalent using OscRecv code then the strings come through okay. If I sent the equivalent data to a separate program - e.g. PD - then the strings also come through okay. Conversely, if I send strings from PD to ChucK then, once again, my OscIn code only picks up the first character. So, I am assuming the issue lies with my code for OscIn rather than OscOut. If anyone could put their finger on the problem, I would be most grateful. And a separate issue with .addAddress: "oIn.addAddress( "/chuck/data, ifss" )" works but "oIn.addAddress( "/chuck/data, i f s s" )" doesn't. This didn't seem to be an issue when using with OscRev/.event. Here's the code: //=========================================== OscIn oIn; OscMsg oMsg; 6452 => oIn.port; oIn.addAddress( "/chuck/data, ifss" ); "localhost" => string hostname; 6452 => int port; OscOut xmit; xmit.dest( hostname, port ); spork ~ recvOsc(); spork ~ sendOsc(); while(true) { 1::day => now; } //============================================ fun void sendOsc() { while( true ) { xmit.start( "/chuck/data" ); Math.random2( 30, 80 ) => xmit.add; Math.random2f( 0.1, 1 ) => xmit.add; "xyz" => xmit.add; "abc" => xmit.add; xmit.send(); 1::second => now; } } //============================================ fun void recvOsc() { -1 => int i; -1.0 => float f; "NULL" => string s; "NULL2" => string s2; "NULL3" => string s3; while( true ) { oIn => now; while( oIn.recv(oMsg) ) { oMsg.getInt(0) => i; oMsg.getFloat(1) => f; oMsg.getString(2) => s; oMsg.getString(3) => s2; <<< "got (via OSC):", i, f, s, s2, s3 >>>; } } } //================================================= Thanks Simon (PS - my machine is a PC running Windows Vista)

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collecting sum signal per-channel of midi-notes
by Peter Billam 09 May '14

09 May '14

Greetings. ( Serious Newbie-warning :-) So: I want to work with MIDI, and implement the Great Missing Midi-Controller, namely a per-channel overdrive distortion like the foverdrive,1196 LADSPA plugin. Untested: fun float foverdrive_1196(float x, float drive) { drive - 1.0 => float drivem1; Std.fabs(x) => float fx; return x*(fx + drive)/(x*x + drivem1*fx + 1.0); } This means I have to get the TriOsc of the note not into a dac TriOsc t => dac; // NO! but into some code which will add it to the per-channel total. I guess those totals will be stored in perhaps LiSa's ? float cha2drive[16]; // set by nonstandard MIDI controller 87 LiSa lisa[16]; // the per-channel total signal of all its notes But at this point I get brain-overload :-( How do I add the TriOsc sample to its LiSa ? How do I invoke foverdrive_1196() on each sample before outputting it to the dac ? I'm very unsure about "now", too, how it co-ordinates between code of all the individual notes and the final "=> dac" step, but still executes all these things scattered throughout the code in an appropriate order. Hope this makes sense... If I get this solved, I should become more self-maintaining... Thanks, Regards, Peter Billam http://www.pjb.com.au pj(a)pjb.com.au (03) 6278 9410 "Follow the charge, not the particle." -- Richard Feynman from The Theory of Positrons, Physical Review, 1949

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Re-direct output to file on OS X?
by Arve Knudsen 08 May '14

08 May '14

Hi guys Using ChucK on OS X, is there some easy way to re-direct its audio output to a file (for analysis)? Thanks, Arve

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Running scripts sequentially
by Gonzalo 06 May '14

06 May '14

Hi, I'm trying to run multiple .ck files sequentially. Specifically I have a 'master' file that loads all the 'child' files via Machine.add. But then of course they run concurrently. For now I'm just advancing time in the master file before every Machine.add statement (ugly...). Is there a way to accomplish this nicely? Thanks! Gonzalo PS: This is my first message to this list. I'm working on a project with Chuck that raises *a lot* of questions, so I'll probably be coming back here often. :)

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chuck vm options
by Al Matthews 29 Apr '14

29 Apr '14

Hello list. 1) Catching up a bit, it occurs to me that shell%> chuck --start `while(true) 1::second +=> now;` has been superseded by shell%> chuck --loop ; correct? Does ChucK any longer accept subprocesses or so, from the shell? 2) Also if anyone cares to distinguish or give an example for --callback Utilizes a callback for buffering (default). --blocking Utilizes blocking for buffering. then I'm much obliged as this is unfamiliar in some respects to me. Al Matthews - http://fatmilktv.com Atlanta, GA, US +1 337 214 4688

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Re: [chuck-users] curious about chuck
by Perry R Cook 18 Apr '14

18 Apr '14

Oscillators of type (XXXOsc) do accept direct input from other UGs for Phase or Frequency. You just have to set the .op mode for those. In general, UGs don't accept sample-rate ChucK connection for arbitrary parameters, as very often one doesn't really want or need those to run at the sample rate. Control rate is arbitrary in ChucK, so to update the .freq of something non-Osc type, you would make a shred that does it at your sub-sample rate. You could even do it at the sample rate, of course. Here's an example: Flute f => dac; 880.0 => float freq => f.freq; spork ~myMod(); 1 => f.noteOn; 1*second => now; 660.0 => freq => f.freq; 1*second => now; 440.0 => freq => f.freq; 1*second => now; fun void myMod() { SinOsc s => blackhole; 6.0 => s.freq; while (true) { freq * (1.0 + 0.05*s.last()) => f.freq; 10 :: ms => now; // whatever rate you like here } } // Cheers!!! PRC ----- Original Message ----- 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: curious about chuck -- very basic question (Aaron Bohannon)

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curious about chuck -- very basic question
by Aaron Bohannon 17 Apr '14

17 Apr '14

After reading through the relevant parts of the language specification, I am unable to determine whether it is valid to use the chuck between a unit generator and a variable/property, like this: SinOsc s => dac; SinOsc lfo => s.freq; Obviously, anyone who's used hardware synths is going to want to do that sort of thing. I'm sure this has been discussed and debated a hundred times on this list before, so feel free to send me a link to someone else's answer. I just couldn't find any search terms that would pinpoint the issue. Thanks, Aaron

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workshopping (atlanta)
by Al Matthews 04 Apr '14

04 Apr '14

Hello again. I am undertaking as of next month a series of livecode workshops in Atlanta, in which I expect to teach or demo a fair amount of ChucK. I'd very much appreciate hearing what your teaching | learning experiences in ChucK may have been. I've mined a lot of existing ChucK material, but I certainly appreciate examples as well. Naturally I will give full authorship credit insofar as I receive it, to any borrowed examples. Thank you. Al Matthews - http://fatmilktv.com Atlanta, GA, US +1 337 214 4688

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Float assignment totally unexpected
by alfredo 26 Mar '14

26 Mar '14

Hello everybody! I'm running miniaudicle for ubuntu 13.10. everything compiles and even sound works. i'm just facing an unexpected behaviors with floats. <<< 12.2 >>> prints 12.000000 : (float) <<< 1.2 * 2.2 >>> prints 2.00000 : (float) 2.3 => float a; <<< a >>> prints 2.000000 : (float) i really want to solve this out as soon as possible. any advices? is a gcc/g++ issue? is chuck language issue?

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Build error in miniAudicle 1.3.1
by alfredo 19 Mar '14

19 Mar '14

Hello everybody! I'm facing this error when i do "make linux-alsa" on ubuntu 13.04: b4ts4rr4@blu3zy:~/Scaricati/miniAudicle-1.3.1/src$ sudo make linux-alsa qmake-qt4 "RTAUDIO_BACKEND=ALSA" -o makefile.qt-alsa miniAudicle.pro make -f makefile.qt-alsa make[1]: ingresso nella directory "/home/b4ts4rr4/Scaricati/miniAudicle-1.3.1/src" /usr/lib/x86_64-linux-gnu/qt4/bin/uic qt/mAMainWindow.ui -o build/ui_mAMainWindow.h /usr/lib/x86_64-linux-gnu/qt4/bin/uic qt/madocumentview.ui -o build/ui_madocumentview.h /usr/lib/x86_64-linux-gnu/qt4/bin/uic qt/mAConsoleMonitor.ui -o build/ui_mAConsoleMonitor.h /usr/lib/x86_64-linux-gnu/qt4/bin/uic qt/mAVMMonitor.ui -o build/ui_mAVMMonitor.h /usr/lib/x86_64-linux-gnu/qt4/bin/uic qt/mAPreferencesWindow.ui -o build/ui_mAPreferencesWindow.h /usr/lib/x86_64-linux-gnu/qt4/bin/uic qt/mAExportDialog.ui -o build/ui_mAExportDialog.h g++ -c -m64 -pipe -D__LINUX_ALSA__ -D__CK_SNDFILE_NATIVE__ -D__LINUX__ -D__PLATFORM_LINUX__ -Ichuck/src -DHAVE_CONFIG_H -O3 -w -D_REENTRANT -DHAVE_CONFIG_H -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4 -Ibuild -Ibuild -o build/mAMainWindow.o qt/mAMainWindow.cpp g++ -c -m64 -pipe -D__LINUX_ALSA__ -D__CK_SNDFILE_NATIVE__ -D__LINUX__ -D__PLATFORM_LINUX__ -Ichuck/src -DHAVE_CONFIG_H -O3 -w -D_REENTRANT -DHAVE_CONFIG_H -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4 -Ibuild -Ibuild -o build/main.o qt/main.cpp gcc -c -m64 -pipe -D__LINUX_ALSA__ -D__CK_SNDFILE_NATIVE__ -D__LINUX__ -D__PLATFORM_LINUX__ -Ichuck/src -DHAVE_CONFIG_H -O3 -w -D_REENTRANT -DHAVE_CONFIG_H -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4 -Ibuild -Ibuild -o build/util_xforms.o chuck/src/util_xforms.c g++ -c -m64 -pipe -D__LINUX_ALSA__ -D__CK_SNDFILE_NATIVE__ -D__LINUX__ -D__PLATFORM_LINUX__ -Ichuck/src -DHAVE_CONFIG_H -O3 -w -D_REENTRANT -DHAVE_CONFIG_H -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4 -Ibuild -Ibuild -o build/util_thread.o chuck/src/util_thread.cpp g++ -c -m64 -pipe -D__LINUX_ALSA__ -D__CK_SNDFILE_NATIVE__ -D__LINUX__ -D__PLATFORM_LINUX__ -Ichuck/src -DHAVE_CONFIG_H -O3 -w -D_REENTRANT -DHAVE_CONFIG_H -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++-64 -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui -I/usr/include/qt4 -Ibuild -Ibuild -o build/util_string.o chuck/src/util_string.cpp chuck/src/util_string.cpp: In function 'std::string get_full_path(const string&)': chuck/src/util_string.cpp:393:14: error: 'PATH_MAX' was not declared in this scope chuck/src/util_string.cpp:395:42: error: 'buf' was not declared in this scope make[1]: *** [build/util_string.o] Errore 1 make[1]: uscita dalla directory "/home/b4ts4rr4/Scaricati/miniAudicle-1.3.1/src" make: [linux-alsa] Errore 2 (ignorato) any ideas how to solve? thanks best regards, alfredo

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Eternal chuckation
by Stuart McDonald 15 Mar '14

15 Mar '14

I'm trying to get a continuous ambient mix 'app', where once a SndBuf finishes playback, another will be instantiated. There should always be two SndBufs playing at all times. I can get this scenario working easily enough but the memory used by earlier playback isn't being freed up. It seems that as long as a parent shred (required to instantiate and monitor the sndbufs) is while-ing away eternally, the sndbuf remains in resident memory. This is a problem because as more sound files are selected and played the computer will eventually run out of memory. Switching to the command line I find I can chuck + simple sndbuf playing files and once playback is complete, memory use goes back to what it was. I already have a perl script running to take care of environment and execution of the program on boot, so I can modify that to periodically add new chucks. The problem now shifts to knowing when to identify that the current file has completed playback, and a new file should be added. OSC seems a good way of getting information from Chuck to the script. There's a Perl library for running an OSC server, so it seems like this could well work. But before I go down this slightly Rube Goldberg route, I wanted to check: is this really the Best Way(TM)? Thanks, Stuart

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sending an array from ChucK via OSC
by dparson 09 Mar '14

09 Mar '14

Does ChucK support sending an array as such? I am already using a loop to create a OSC foprmat string "iif[BUNCH OF fS]", so I suppose I can just forget the "[]" in the format string and send a bunch of scalar floats instead of an array. the array size is fixed. But, I thought I'd ask. I can't find any docs to suggest it, and I don't have time to dig into the implementation. I need to get ready for this: https://www.facebook.com/events/194651817409105/ Thanks. Dale (Acoustic Interloper) http://faculty.kutztown.edu/parson

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platform-independent UIs
by David Loberg Code 07 Mar '14

07 Mar '14

I am a Mac-ANSI-American. I am now faced with the need to optimize (i.e., rewrite) some of my ChucK programs so that the user interfaces will work in other platforms (e.g., PC-ISO-Norwegian). Obviously, the ideal is to have a single version that will behave the same in any platform. Below are some of the things I have discovered in confronting OSX vs. Windows, ANSI vs. ISO, and USA keyboard layout vs. other languages. Please: a) correct me if there is something which I got wrong or misunderstood b) share with me any additional tips or advice for things I have overlooked KEYBOARD: Here is what I understand about HidMsg for keyboard devices. msg.which produces the machine key code (in decimal); msg.key produces the USB scan code, msg.ascii produces an ascii value (sort of) On Macs, msg.which and msg.key produce the same numbers. On PCs, they produce different numbers. Cross-platform, msg.which produces different numbers on Macs vs.PCs; msg.key produces the same numbers for both machines. Pressing 'a' on a Mac: msg.which == 4, msg.key == 4, msg.ascii == 65 Pressing 'a' on a PC: msg.which == 30, msg.key == 4, msg.ascii == 65 As such, a ChucK script using msg.which for key mapping is platform dependent. If you want it to be consistent always use msg.key instead. (Unless I am missing something, there doesn't seem to be a good reason for using msg.which for keyboard input) .ascii produces an ascii value (but not necessarily the same as the actual ascii character mapped to that key) a) for letters: the ascii number for the UPPER-case letter associated with that key for English layouts (even though it is actually the lower-case character which is getting pressed) b) for numbers/symbols: the ascii number for the lower-case character associated with that key for English layouts It doesn't seem to matter what keyboard language layout you specify for your laptop. That is, if you are using a German keyboard layout, you won't get ascii values for the uniquely German keys. However, it does seem to matter what kind of physical keyboard you are using. If it is an ANSI (American) keyboard, the .ascii results for are based on a standard US English keyboard layout. If it is an ISO (European) keyboard, the .ascii results are (sometimes) based on a British-PC English keyboard layout. In other words, unlike KBHit (which appears to give different ascii values for different upper and lower case characters), msg.ascii seems to use fixed tables for the ascii values. Since it doesn't give the true value of the character, it also doesn't seem like there is much point in writing programs which use msg.ascii for key mapping. The only advantages might be: a) if you already have the ascii values memorized or b) if you want quasi-random MIDI pitch generators that are already in a reasonable octave register (e.g., CliX). MOUSE/TRACKPAD: Cursor position: On a Windows PC, msg.cursorX and msg.cursorY (and the scaled versions) do not appear to work. Is there some other way of obtaining the absolute X-Y coordinates for the cursor? msg.deltaX and msg.deltaY work in both platforms, but appear to behave differently. if( msg.isMouseMotion ) { <<<msg.deltaX, msg.deltaY>>:} On a Mac, only one value will report at a time. When deltaX has a non-zero value, deltaY is always zero (and vice versa). Thus, at any given poll, you can determine movement East-West (deltaX) or North-South (deltaY) but not both. On a PC, it can report non-zero values for both coordinates at the same time. As such, it is possible to detect diagonal movement (i.e., NE, NW, SE, SW). This can be done on a Mac, but you must evaluate (deltaXnow && deltaYlast) || deltaXlast && deltaYnow) What else have I missed? thanks, david David Loberg Code School of Music Western Michigan University 1903 W Michigan Ave Kalamazoo, MI 49008-5434 code(a)wmich.edu

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Workshop on Audio Plug-Ins Design in Faust
by Romain Michon 19 Feb '14

19 Feb '14

Hi Folks, I'll be giving a workshop on Audio Plug-Ins Design in Faust this summer at the Center for Computer Research in Music and Acoustics (Stanford University, USA) this summer (Mon, 07/07/2014 - Fri, 07/11/2014). Thanks to Spencer Salazar, Faust can be used to easily create chugins so I thought that this event might interest some of the members of this list. More informations are available on this page: https://ccrma.stanford.edu/workshops/faust-workshop-2014 You can also contact me directly if you have specific questions: rmichon(a)ccrma.stanford.edu Cheers, -- Romain Michon PhD Candidate Center for Computer Research in Music and Acoustics Stanford Universityhttp://ccrma.stanford.edu/~rmichon

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Using Chuck as an embedded language
by Phenix Nunlee 13 Feb '14

13 Feb '14

I am interested in using chuck as an embedded language? I want to try to model circuit with transfer functions.

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Re: [chuck-users] Command line arguments
by Stuart McDonald 12 Feb '14

12 Feb '14

Bah, I just noticed me.arg(0) in http://chuck.cs.princeton.edu/doc/examples/basic/rec.ck Nothing to see here, etc. Stuart

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