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

ASIO cross-compile (paging dr. Sinclair!)
by Kassen 20 Oct '09

20 Oct '09

Fellow ChucKists/ Dear Stephen. Some time last year there was some talk about using GCC on Linux to build ChucK for Win32. This would be useful for things like a ASIO build, testing minor tweaks, etc. This is a big deal to me; I need ASIO for live performance as the default drivers are SLOOOOOW and stereo only, I don't like to have to beg for new ASIO builds and finally; there is a real interest in this. The ASIO versions kept on the Electro-Music forum were downloaded between about a hundred and over three hundred times each, those numbers seem quite signifficant to me. So; time to get my hands dirty. The sensible solution would be to get MS's free compiler but my Win XP install is so severely stripped that I don't dare install any big MS packages. Right now it's very stable and I'd like to keep it that way. So, at Stephen Sinclair's recomendation I got the MinGW packages.... and now I seem to be stuck. MinGW *seems* to be capable of building Win32 programs but it's not so clear to me how one would go about that. How would I move from here? Yours, Kas.

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Korg nano keyboard.
by Reg Id 18 Oct '09

18 Oct '09

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Korg nonoKontrol as an input device
by Robert Poor 18 Oct '09

18 Oct '09

A guy in my band just showed me his new Korg nanoKontrol -- $60 gets you nine sliders and nine encoders in a slick compact package: http://createdigitalmusic.com/2009/08/18/nanokontrol-myr-for-ableton-live-f… I tried opening it in ChucK as a Hid joystick and as a MIDI keyboard, but no luck. Has anyone used a nanoKontrol with ChucK? And if so, what's the secret? It would be a nice addition to a live setup. -- Rob

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Re: [chuck-users] Wrapping ChucK
by Hans Aberg 18 Oct '09

18 Oct '09

It was just my impression from the Wikipedia site. Also note that there is GNUstep: http://en.wikipedia.org/wiki/GNUstep The screenshot of GNUMail looks very similar to that of Mac OS Mail, and both derive from NeXTMail. - I'm getting skilled at using the shift key! The point would be to just doing one multiplatform GUI. Hans On 17 Oct 2009, at 23:19, Andrew C. Smith wrote: > Interesting -- I don't think they're actually deprecated, though, but > they're compiled versions of the .xib files. The .xibs are encoded in > XML format, so that then when you compile the interface it becomes a > .nib. > > Kas, good call on that. Pretty sure I Am T-Pain is not open source, > though, seeing as how it's one of the top-selling apps, along with > Ocarina. (btw--Ocarina sounds very "ChucK." Agree or disagree?) > > If anyone is following this, I found a gem in audicle_nexus.cpp under > the function chuck_chuck( int argc, char ** argv, t_CKBOOL co ), which > is what the audicle uses to start up chuck. I'm working now on > importing the new ChucK into Xcode, after which I'll start to see if I > can link it to some simple Cocoa program. > > Andrew

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Wrapping ChucK
by Andrew C. Smith 17 Oct '09

17 Oct '09

Has anyone tried to wrap ChucK into a standalone program? I'm thinking (at the very least) it could just be made to run simultaneously and communication could be made over OSC, but it would be cool to have the whole thing communicate through 8888, the port that the console communicates on. Basically, the mini is an effective wrapper, right? I'm just wondering if anyone has created anything simpler, like even just a program that outputs ChucK sounds when you click buttons or something. It would be really cool for games (or toys, not really games) that let users play around with sounds using an integrated graphical interface. Anyone try it? Andrew

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feeble time printing
by Robert Poor 16 Oct '09

16 Oct '09

I'm pretty sure there's a bug in the way ChucK prints time. Or there may be a bug in the way I think. Bear with me... You would expect that two time values that print identically would compare as equal. But I can show you a case where t0 and t1 print as "44100.000000" yet they're not equal. You'd also expect t1 to have a fractional part of 0.0. But in this case: <<< (t1 % 1::second) >>> prints "1.000000" and <<< t1 - (t1 % 1::second) >>> prints "44099.000000" Mind you, I'm NOT complaining about roundoff error -- I understand that converting between floats and time is subject to roundoff -- but it has certainly cost me a LOT of debugging time discovering that 44100.000000 != 44100.000000. It's a printing bug. Here's the code. It's longer than it needs to be, so if anyone asks for it, I'll strip it down to a three line example. // In ChucK, two times can appear to be equal when printed, // but compare as not equal, as demonstrated here. 72.511111111 => float tempo; // intentionally subject to roundoff now => time t0; // base time 100.0 => float b0; // beat at t0 1::second / tempo => dur i0; // duration of one beat // convert from system time to beat fun float time_to_beat(time t) { return b0 + (t - t0)/i0; } // convert from beat to system time fun time beat_to_time(float b) { return t0 + (b - b0)::i0; } // for debugging: extract fractional and whole parts from time fun dur frac_time(time t) { return t % 1::samp; } fun time whol_time(time t) { return t - (t % 1::samp); } fun void test_time(time t0) { beat_to_time(time_to_beat(t0)) => time t1; if (t0 != t1) { <<< "t0:",t0,"is not equal to t1:",t1>>>; frac_time(t0) => dur f0; frac_time(t1) => dur f1; whol_time(t0) => time w0; whol_time(t1) => time w1; <<< f0, f1, f0==f1, w0, w1, w0==w1 >>>; } } test_time(now); test_time(now+1::second); test_time(now+1::samp);

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The ChucK Game Show
by Les Hall 13 Oct '09

13 Oct '09

The iTunes debut of The Game Show went well and there was plenty of ChucK to be heard. Next week: a special all-ChucK Game Show! Tune in on iTunes by clicking on radio in the upper left, selecting the electronica genre, then scrolling down and selecting radio.electro-music.com at 7pm EST (4pm left coast time). New additions to the show: the penalty box and the Keystone Cops! Anyone in the chatroom who breaks the rules or misbehaves (which is often on THIS show) has to go into the penalty box. If they make a run for it, the Keystone Cops go after them, with their big floppy clown shoes and nerf batons! Last week Jan got locked in the penalty box but he enjoyed it because Sunshine was in there with him and shared her "cookies" fresh from the oven with him. Rob won, but that is debatable because he cheated as usual and the show was fixed! Oh no! Tune in for plenty of chaos and mayhem! Les

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Re: [chuck-users] problems using quicktime synth
by Hans Aberg 11 Oct '09

11 Oct '09

[You are forgetting to cc the list.] OK. The update to the QT version you have torched QT, but I suspected it has to do with the filesystem - I use the case-sensitive one. In the past, when this has been a problem, it has affected both PPC and Intel computers, people assuming it has to do with an installed sound component. Anyway, in order to test if it is QT or ChucK, you might try SimpleSynth with some MIDI gear. Hans On 11 Oct 2009, at 14:36, David Minor wrote: > Mac OS extended journaled > > On Sun, Oct 11, 2009 at 2:28 PM, Hans Aberg <haberg(a)math.su.se> wrote: > On 11 Oct 2009, at 14:20, David Minor wrote: > > OSX 10.5.8, Quicktime 7.6.4, Filesystem HFS. > > If you go to Finder, click on the hard drive icon, and selects Info > <cmd>-I, what does it say that the format is? - Alternatively, open > Disk Utility, and check this. > > Hans > > >

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problems using quicktime synth
by David Minor 11 Oct '09

11 Oct '09

I can't seem to get Chuck to play out of the built-in QT synth on Mac OSX. I turned on the IAC driver and I see my events being picked up there. I also checked in MidiShare that the IAC driver is routed to the QT synth. Still nothing! Other applications that output to the built-in midi synth seem to work. Regards, David

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instrument in function - good idea, or?
by Atte Andre Jensen 09 Oct '09

09 Oct '09

Hi I know I'm a bit slow, but I just found that it's quite simple to totally encapsulate an instrument in a function, ugens and all, as the example below shows. Now I'm wondering how much overhead this yields compared to keeping the ugens, ADSR.set and stuff like that outside the function? I guess part of the answer is it depends on what one needs to do. Do you need to play the instrument monophonically, with a small, fixed number of voices or ad-hoc polyphony. The instrument-in-a-function solution elegantly solves the polyphony problem, I can just spork as many voices as I need, and they are automatically destroyed when finished. But how great a peak in cpu usage does the creation of the ugens generate? 5 => int octave; .1 => float gain; [0,2,4,7,9,11,14,16] @=> int notes[]; while(true){ notes[Std.rand2(0,notes.cap()-1)] + 12*octave => int note; ms * Std.rand2f(1500,2000) => dur length; spork ~ ep(note, length, gain); ms * Std.rand2f(150,1500) => now; } fun void ep(int note, dur length, float gain){ 2::second => dur decay; 10::ms => dur release; SinOsc s1 => ADSR e1 => dac; SinOsc s2 => ADSR e2 => dac; gain => s1.gain; gain * .2 => s2.gain; e1.set(1::ms, decay, 0, release); e2.set(1::ms, decay * .3, 0, release); Std.mtof(note) => s1.freq; s1.freq() * 2=> s2.freq; e1.keyOn(); e2.keyOn(); if(length < decay){ length => now; e1.keyOff(); e2.keyOff(); release => now; } else { decay => now; } } -- Atte http://atte.dk http://modlys.dk http://virb.com/atte

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