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

.size() fails to properly instantiate objects
by Kassen 10 Aug '08

10 Aug '08

Fellow ChucKists, Below you'll find some example code proving that extending a array of instances of a home-made class using ".size()"doesn't properly instantiates the new objects, leading to nullpointers and the shred being dropped. The "<<" operator, using "new" does lead to proper instantiation. I feel this is a bug. Yours, Kas. =====================8<============================== //instantiate a array of home made classes foo bar[1]; //check that this works <<<"your lucky number is ", bar[0].value>>>; //grow by one. bar << new foo ; //make sure it's instantiated <<<"your lucky number is ", bar[1].value>>>; //grow by a another one bar.size(bar.size() + 1); //make sure we did, size should now be 3 <<<"size is now", bar.size()>>>; //try to verify this is instantiated, it won't be <<<"your unlucky number is ", bar[2].value>>>; class foo { Std.rand2(0, 10) => int value; } ===================================================

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pass arguments without the pesky colons
by N. Cameron Britt 10 Aug '08

10 Aug '08

Don't know if this is useful to anyone, but here's a little Perl script that allows you to pass arguments to Chuck separated by spaces rather than colons. Run this and let Perl run Chuck for you with properly formatted arguments. Should be in the same directory as the Chuck file you're trying to run. #!/usr/bin/perl my $args = join(":", @ARGV); $cmd = "chuck YOUR_CHUCK_FILE.ck" . ":$args"; #print "$cmd\n"; exec($cmd); Run with a command something like this: ./arg.pl arg1 arg2 arg3 etc I could imagine something like this being expanded into some sort of on the fly programming front end, to pass arrays of pitches for example.

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me.numArgs() broken?
by N. Cameron Britt 06 Aug '08

06 Aug '08

Is me.numArgs() broken? This code taken from the concurency/shreds page of language specification: // print out all arguments for( int i; i < me.numArgs(); i++ ) <<< me.arg( i ) >>>; returns this error: "class 'Shred' has no member 'numArgs'"

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Re: [chuck-users] [chuck] updates and clarifications
by Kassen 04 Aug '08

04 Aug '08

2008/8/4 Ge Wang <ge(a)ccrma.stanford.edu> > Greetings all, Hey, Ge! > Please feel free to write me, or continue this discussion on [chuck-users] and/or the forum. Cool, I will :¬) The "ChucK => MIR programming" workshop at the upcoming > ISMIR already has 40 registrants; The user base seems to be growing > steadily. > Sounds great! Will more info on this "MIR" concept be available for the geographically challenged as well? I'm becoming really interested in analysis of incoming signals (not just audio but also patterns and structures in other forms of realtime input like HID) but this is hard stuff and any help would -well- help. :¬) Yours, Kas.

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Re: [chuck-users] WiiMote Support
by Inventor-66＠comcast.net 26 Jul '08

26 Jul '08

Osculator does WiiMote to OSC (I've tried it on the Mac, wasn't too hard to get working), but maybe you want something built into ChucK itself? http://www.osculator.net /Stefan Stefan, Thanks, that's another piece of the puzzle, but yes I was looking for something built into ChucK itself. I will make do with Osculator as best as I can. I run into certain problems with external software like what version of OSX does it require. Oh? that means a $130 upgrade and a $100 disk, no I can't do that, etc... But soon I will have a Linux box and that will help things. Are there any plans to provide built-in ChucK support for the WiiMote and like devices? Les

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WiiMote Support
by Inventor-66＠comcast.net 26 Jul '08

26 Jul '08

Hi folks, I know the DEV TEAM is overworked to the max with releases and features and bug fixes and all that jazz, but this is a thing that has already been started I think. There was supposed to be some exploration on Spencer's part perhaps of native ChucK WiiMote support, or so I heard. I was just wondering where that effort drifted off to. I am in need of a WiiMote solution for Mac and/or Linux. For Linux I can use nescivi's code so that's cool, but I dunno about mac. Any advice or web links? I just gotta swing my guitar like an axe and make cool sounds like that! Les

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time and truth (bug?)
by Kassen 24 Jul '08

24 Jul '08

Dear list, Considering that this is valid; if (now) <<<"yay">>>; if (second) <<<"hurray">>>; I feel that this should be valid as well; if (now && true) <<<"this won't parse">>>; However, it isn't; ChucK complains the "&&" operator can't be resolved on time and int. This is a issue as well; if (second && true) <<<"This neither">>>; of course we could go... if (second) if (now) if (true) <<<"this is silly but runs">>>; ...but that looks a bit primitive. Yours, Kas.

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sample rate defaults (jack)
by Tristan Matthews 22 Jul '08

22 Jul '08

Hi, I'm using ChucK with jack (compiled with makefile.jack). I was wondering if there's a way to set the default sample rate for chuck to be 44100, rather than 48000. I could change this guy: digiio_rtaudio.h:58:#define SAMPLING_RATE_DEFAULT 48000 // sampling rate but I thought I'd see if there were other options. Even better would be having an option to get the sample rate from the jack server. Best, Tristan -- Tristan Matthews Société des arts technologiques [SAT] email: tristan(a)sat.qc.ca web: http://www.music.mcgill.ca/~tmatthews

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chuck 1.2.1.2 still doesn't work on 64-bit linux
by Michael Heuer 22 Jul '08

22 Jul '08

All, Has anyone been able to get version 1.2.1.2 to work on 64-bit linux, without 32-bit compat libraries? It builds fine for me but seg faults on nearly every example. michael

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ChucK Lab Video
by Inventor-66＠comcast.net 20 Jul '08

20 Jul '08

Hi Spencer et. al., Here is a video under 15 minutes of me making music with ChucK Lab, which is basically an explosion of MAUI filling the screen and making cool music. The link is here: http://www.freedomodds.com/music/ Just look at the first section underneath the introductory paragraph for the link. Warning it is over 70 MB. Plus I got the levels wrong and you can barely make out my voice. But aside from that it's cool. Les p.s. I might make more ChucK videos.

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USB Accelerometer Product Coming
by Inventor-66＠comcast.net 19 Jul '08

19 Jul '08

Hi, For all us HID-heads, I thought I would mention the new product that I'm helping to develop. I was gonna make a 3-axis accelerometer on a USB interface. When I approached the company that makes the USB interface, I suggested they might want to make such a product for their product line. They replied with excitement, and a new product was born! I am not sure of its exact form down the road but they have the technology to make this product any way we want it to be. I figure a single 3-axis accelerometer plus their standard 8-I/O gamepad / joystick interface on a board the size of a stick of gum. Wrigley's will be proud. So please be aware that coming down the river is a new, hopefully inexpensive, HID part for us all to enjoy. Cheers! Les

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getting ADSR::XTime()
by eduard 17 Jul '08

17 Jul '08

Hi list, I'm afraid there is a bug on the getters side of the ADSR UGen. One can set adsr::attackTime( 10::ms ) and gets adsr::attackTime() as 0.010::samp, instead of (0.010*SR)::samp. So, to be able to use adsr::attackTime() => now correctly, one should do: adsr::attackTime()*sr => now Which I don't think is the way one would expect. Could anyone confirm the same behaviour, so I can add it to the wiki-bug-list? eduard SinOsc s => ADSR env => Gain g => dac; env.attackTime( 10::ms ); env.decayTime( 5::ms ); env.releaseTime( 1000::ms ); <<<"env_region", "\tstate()", "\tcur time[ms]", "\ttime[samp]", "\ttime[ms]">>>; <<<"-------------------------------------------------------------------- -------","\n">>>; while( true ) { env.keyOn(); <<< "start of att", "\t", env.state(), "\t", now/ms , "\t", env.attackTime()/samp, "\t", env.attackTime()/ms>>>; env.attackTime() => now; <<< "end of att", "\t", env.state(), "\t", now/ms >>>; <<< "start of dcy", "\t", env.state(), "\t", now/ms, "\t", env.decayTime()/samp, "\t", env.decayTime()/ms >>>; env.decayTime() => now; <<< "end of dcy", "\t", env.state(), "\t", now/ms >>>; env.keyOff(); <<< "start release", "\t", env.state(), "\t", now/ms, "\t", env.releaseTime()/samp, "\t", env.releaseTime()/ms >>>; env.releaseTime() => now; <<<"end release", "\t", env.state(), "\t", now/ms >>>; 1::second => now; <<< "\n","******************\n">>>;

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Intercepting and Routing Audio
by Inventor-66＠comcast.net 16 Jul '08

16 Jul '08

Hi again, I would like to intercept the output of iTunes on my eMac and send it into ChucK so I can use the Ambiophonic Processor that Howard Moscovitz of the forum wrote, then send that to the dac. Can I do this with a freeware package of some sort, and is it something to add to the feature request list of ChucK? It sure seems like the sort of thing that one should be able to do. Les

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Quick Joystick Question
by Inventor-66＠comcast.net 14 Jul '08

14 Jul '08

Hi, I just have a quick question for planning my HID project. Does the ChucK joystick HID interface support all six joystick axes? I saw that one of the examples on the web page uses four axes, so I believe the answer to be "yes", but I need to be certain. Thanks, Les Hall

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Bouncing Baby Website
by Inventor-66＠comcast.net 14 Jul '08

14 Jul '08

Hi yet again, I would like to announce the birth of a bouncing baby website, my Guitar Motion Sensor project site. You may recall me writing at least one long, excited email about my plans to do a guitar HID project. Well, I'm getting really close to buying the parts and out of frustration waiting for finances to line up plus a desire to share the knowledge, I created a three-page website with all of my plans and reasoning about the project. The url is here: http://www.freedomodds.com/music/gms.html Actually after consulting forum contributors, especially Kassen, I have the hardware boiled down to two circuit boards that will cost $35 each, and a mere five solder connections. Then I'll mount the gizmo on my guitar's headstock and run a long USB cable down the length of the guitar and to the computer. I tried to be humorous and light-hearted in my writing style so people would enjoy reading it. I'd appreciate any comments about the site especially regarding project construction details or possible gotchas / errors. Plus I'll note that my website traffic has more than doubled in the few days since I put the site up, so I believe that people are interested in guitar effects HID. Making the world a better place via ChucK - kinda feels good, eh? Cheers! Les

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Re: [chuck-users] Intercepting and Routing Audio
by Inventor-66＠comcast.net 13 Jul '08

13 Jul '08

Thanks folks, Jack wouldn't run on my machine, it quit unexpectedly when I tried to run it. Perhaps I need an older version of the software for my 10.3.9 OSX, but anyway SoundFlower is working great! WooHoo, now I can even do effects processing of audio from iTunes! Les

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STK Modulate -- does it work?
by Chris McDaniel 08 Jul '08

08 Jul '08

Hello, Wondering if someone can explain STK Modulate to me; I just don't seem to get it! The code below is just a little test to try and figure it out -- works as expected if you comment out all the Modulate related bits, but as is, makes a muddy hum... Obviously I'm doing something wrong! Can anyone shine some light on this for me? Thanks ----------------------------------- // SinOsc m => dac; // the offending portion! SinOsc m => Modulate modu => dac; 60 => modu.vibratoRate; 1 => modu.vibratoGain; 1 => modu.randomGain; // fine from here... 200 => float freq; 0.3 => m.gain; while (true) { // just to keep it interesting... Std.rand2(1, 4) => int multipler; ((freq * 2) - freq) / 12 => float step; step * multipler => float newfreq; if (freq > 2000.0 || freq < 150.0) { if (freq < 150.0) { freq + newfreq => freq; } else { freq - newfreq => freq; } } else { if ( maybe ) { freq + newfreq => freq; } else { freq - newfreq => freq; } } freq => m.freq; 250::ms => now; }

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Chorus.modDepth broken?
by Atte André Jensen 08 Jul '08

08 Jul '08

Hi It seems to me that the modDepth of chorus doesn't work, depth is always very deep, it has some effect on the sound, but very subtle and not at all what I expected. Can anyone confirm this? 5::second => dur play; 2::second => dur pause; SinOsc s => Chorus c => dac; .5 => float gain; <<<"first the default settings - sounds strange">>>; inBetween(); <<<"setting the modDepth to 0">>>; 0 => c.modDepth; inBetween(); <<<"setting the modDepth to 1">>>; 1 => c.modDepth; inBetween(); <<<"setting the modDepth to 1000">>>; 1000 => c.modDepth; inBetween(); <<<"setting the modDepth to .001">>>; .001 => c.modDepth; inBetween(); <<<"something like this is the best that can be achieved IFAICT">>>; .3 => c.mix; .001 => c.modFreq; play => now; fun void inBetween(){ gain => s.gain; play => now; 0 => s.gain; pause => now; gain => s.gain; } -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://modlys.dk

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webcam and touch
by lucas samaruga 07 Jul '08

07 Jul '08

Hi all Thinking of support for webcams, would it not be a good idea to integrate touchlib within chuck utilities? http://www.nuigroup.com/touchlib/ I do not know if this library is adequate, but the things I've seen do with it are very good. I think it would be a good utility for HID! What do you think? (perhaps an observation misplaced) Greetings Lucas

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ChucK mirror site up!
by Ge Wang 06 Jul '08

06 Jul '08

Dear all, Due to increased unavailability of the primary ChucK site, we now have coast to coast mirrors! The main ChucK site at Princeton: http://chuck.cs.princeton.edu/ New left coast ChucK mirror at Stanford: http://chuck.stanford.edu/ These are synchronized from the same repository and should contain identical content. Hopefully at least one of these should be up at all times... Happy ChucKing! Ge!

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1.2.1.2?
by Chris McDaniel 05 Jul '08

05 Jul '08

Forgive me if this is common knowledge; I have not found any references in my searching... The SmirK page indicates that ChucK 1.2.1.2 is required; I have not seen this version available for download as of yet. Is there a repository somewhere? Thanks, Chris

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music made with chuck
by Atte André Jensen 04 Jul '08

04 Jul '08

Hi There as been a trend on the linux audio list, where people post "music made with linux". So here it is is, a small interlude I did today in chuck, controlled in realtime by my bcr-2000: http://atte.dk/modlys_oeve/extra/lofi.mp3 There are a few mistakes in there, but that's the way it came out... -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://modlys.dk

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MiniA background colour under Linux
by Kassen 03 Jul '08

03 Jul '08

Spencer, Under Ubuntu (latest mainstream release, kept up to date) I can't get the back-ground colour to change using the editing settings. All other colours work. Ubuntu uses the Gnome windows manager (and so do I). It might be worth pointing out that the background stays white which is also my system's colour set for everything that's not black (I have texts and window headers black) so it could be a conflict between the system setting and the Mini's, conceivably. I haven't yet tried whether this also affects my Windows computer. I also noted that while I can change individual elements (aside from background) with the changes taking effect after confirming them but resetting to the defaults (because I didn't want light pastel colours if I couldn't also have a dark grey background....) only took effect after restarting the MiniA. I'd be happy to run more experiments if you tell me what to look for. Yours, Kas.

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Demonic Vocoder
by Inventor-66＠comcast.net 03 Jul '08

03 Jul '08

Hi all, The other day I created a ChucK one-liner in kijjaz's style. It converts your voice into that of a demon from Hell, or Darth Vader if you breathe hard enough. This one is so kewl I just had to post it. // Demonic Vocoder adc => PitShift p => dac; adc.gain(10); 1 => p.mix; p.shift (0.8); day => now; It works via an intentional feedback loop from the speakers to the microphone, so adjust the volume for proper effect. Then say "ChucK, I'm your father. Join me on the dark side. Together we will rule the musicverse!". Muhuhaha!!! Les (Inventor)

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comma is and? undocumented feature
by Kassen 29 Jun '08

29 Jun '08

Dear list, Consider the following; =============== if( 1 , 0) { <<<"false?">>>; } if( 1 , 1) { <<<"true?">>>; } ============= I think this isn't according to the language specs but it runs just fine. It seems that the comma equates to "&&"? it's not problematic in the slightest but it's not according to the specs either, I think, and a bit confusing. What's up here? Yours, Kas.

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