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

midi channels
by mike clemow 10 Aug '07

10 Aug '07

Hello, Is it possible to specify a MIDI channel to send information on? I can't find any information on channels in the manual. Cheers, Mike -- http://shadowofaculture.blogspot.com

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thangs on linux ppc
by 2g 09 Aug '07

09 Aug '07

experiencing that UB version (i don't know why but) works on osx10.3.9 i now understand that chuck is really what i wanted(RT-dsp@command-line) so wanted to go more CUI(VT) oriented and moved to linuxes on other volumes slackintosh was the only one i had to make(linux-alsa) by myself others got there by each apt oriented ways these are maybe cuz i didn't run jackd things before running chuck(is it?) but the result of each chuck moe.ck became as followings chuck on slack is alsa version but i don't know how the bin of debian&ubuntu got compiled (oh unstable is saying something related to jack..) any suggestions? tia slackintosh12.0: [chuck]: (via rtaudio): no devices found for given stream parameters: ... RtApiAlsa: error setting sample rate (48000) on device (hw:Snapper,0): Invalid argument. [chuck]: cannot initialize audio device (try using --silent/-s) debian-ppc-stable: [chuck]: (via rtaudio): no devices found for compiled audio APIs! [chuck]: cannot initialize audio device (try using --silent/-s) debian-ppc-unstable: JACK tmpdir identified as [/dev/shm] [chuck]: (via rtaudio): no devices found for compiled audio APIs! [chuck]: cannot initialize audio device (try using --silent/-s) ubuntu-ppc-7.04: [chuck]: (via rtaudio): no devices found for compiled audio APIs! [chuck]: cannot initialize audio device (try using --silent/-s) -- 2g http://micro.ispretty.com

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order aspect when fun sharing things in main
by 2g 09 Aug '07

09 Aug '07

thanks to things taught via this list am now with isthisokay.ck like this: SinOsc s1 => Gain g1 => dac; SinOsc s2 => g1; SinOsc s3 => PRCRev g3 => dac.left; SinOsc s4 => PRCRev g4 => dac.right; .25 => g1.gain; .25 => g3.gain; .25 => g4.gain; fun void ri() { while(true) { 300::ms => now; s2.freq() * Std.rand2(16, 32) / 16.0 => s3.freq; } } fun void ga() { while(true) { 330::ms => now; s2.freq() * Std.rand2(16, 32) / 16.0 => s4.freq; } } //let's try sporking it spork ~ ri(); spork ~ ga(); while( true ) { Std.rand2(32, 64) * 27.5 / 32.0 => s1.freq; 1000::ms => now; s1.freq() * Std.rand2(8, 16) / 4.0 => s2.freq; 250::ms => now; } am happy with the result it gives but began to wonder why s2.freq() in the fun doesn't result into an error when activated funs are sporked before the main loops starts ... so s2.freq() might have nothing when funs want to claculate things maybe SinOsc s3 => PRCRev g3 => dac.left; SinOsc s4 => PRCRev g4 => dac.right; gives some sort of default for .freq? then at the beginning am having s3,s4 making non-overtone but random note that has nothing to do with 27.5hz? tia -- 2g http://micro.ispretty.com

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NullPointerException
by eduard aylon 07 Aug '07

07 Aug '07

Hi list, I am trying to make a list of objects where each object has references to other objects, but I am not succeeding and I get a NullPointerException. The piece of code below may represent what I am trying to do. class object { Std.rand2f(0., 1.) => float f_; } class Item extends object { 2 => int size_; object item_[size_]; fun void print() { for( 0=>int i; i<size_; i++ ) <<< "item [",i,"]", item_[i].f_>>>; } <<<"----------------------------------------------">>>; <<<"calling print from within class definition">>>; <<<"----------------------------------------------">>>; print(); } 4 => int n; Item l[n]; // no problems up until here <<<"----------------------------------------------">>>; <<<"calling print from outside class definition">>>; <<<"----------------------------------------------">>>; for( 0=>int i; i<n; i++ ) l[i].print(); //offending line After execution I get: [chuck](VM): NullPointerException: shred[id=1:test.ck], PC=[37] Excuse me if it's too obvious, but I can't see why it rises the null pointer exception. Any ideas? thanks in advance, eduard

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Re: [chuck-users] can there be many ::ms in while?
by Stephen Ball 07 Aug '07

07 Aug '07

just to chime in here - i'm VERY new to programming. how do you create this kind of concurrency? if, say, you wanted to create two while loops, but wanted them to run "side-by-side", but looping at different speeds, how would you do it?for example:while (true){ do something; 100::ms => now;}andwhile (true) {do something else; 150::ms => now;}cheers> Date: Fri, 3 Aug 2007 05:53:57 +0900> From: electriclightheads(a)gmail.com> To: chuck-users(a)lists.cs.princeton.edu> Subject: Re: [chuck-users] can there be many ::ms in while?> > oh> maybe in the second way> am just looping the 1st while only?> > maybe it was a bit too early for me to ask things on the list> (only i can do is modifying the tut)> i thought> 100::ms => now;> was something like "100msec later do ..." or "every 100msec do ..."> but i happened to find that in () expression of while> > mmm> i'll go through a bit more ahead in the manual> yes> then i'll find Blit-UGen waiting for me?> > On 8/2/07, Martin Ahnelöv <operagasten(a)gmail.com> wrote:> > tor 2007-08-02 klockan 07:34 +0900 skrev 2g:> > > have just started coding on chuck> > > was looking for way to let s1 have 3 overtones> > > flying around him> > > i know it should be something other than rand2f to handle integers> > > but my q is about ::ms in while> > >> > > i wonder which one of these are the right way to use them> > > i thought the latter might be safe but it seems to give one never> > > changing long note> > > and maybe only one another is floating around> > > but none of them give me an error> > >> > >> > > style one:> > >> > > SinOsc s1 => PRCRev g => dac;> > > SinOsc s2 => g;> > > SinOsc s3 => g;> > > SinOsc s4 => g;> > > .25 => g.gain => g.mix;> > > while( true ) {> > > 500::ms => now;> > > Std.rand2f(30.0, 220.0) => s1.freq;> > > 170::ms => now;> > > s1.freq() * Std.rand2f(8.0, 16.0) / 8.0 => s2.freq;> > > 75::ms => now;> > > s2.freq() * Std.rand2f(16.0, 32.0) / 16.0 => s3.freq;> > > 111::ms => now;> > > s2.freq() * Std.rand2f(16.0, 32.0) / 16.0 => s4.freq;> > > }> > >> > >> > > style two:> > >> > > SinOsc s1 => PRCRev g => dac;> > > SinOsc s2 => g;> > > SinOsc s3 => g;> > > SinOsc s4 => g;> > > .25 => g.gain => g.mix;> > > while( true ) {> > > 200::ms => now;> > > Std.rand2f(30.0, 220.0) => s1.freq;> > > }> > > while( true ) {> > > 170::ms => now;> > > s1.freq() * Std.rand2f(8, 16) / 4.0 => s2.freq;> > > }> > > while( true ) {> > > 75::ms => now;> > > s2.freq() * Std.rand2f(16, 32) / 8.0 => s3.freq;> > > }> > > while( true ) {> > > 111::ms => now;> > > s2.freq() * Std.rand2f(16, 32) / 8.0 => s4.freq;> > > }> > >> >> > Okey, I'm gonna teach you something about while-loops. A while loop will> > do whatever is in the brackets behind the statements until the> > expression inside the parenthesis is false. When it is false, it> > continues to the next thing after the close bracket (in your case the> > next while-loop).> >> > illustrated with chuck-code:> >> > 1 => int i;> >> > while (i < 10) {> > <<<i>>>; //print i> > i + 1 => i;> > }> > <<<"done">>>;> >> > Notice how it prints the numbers 1 to 9, and finally "done"?> >> > Now, look at your second example. Does the expression never return> > false? No, because you have hard coded "true" inside it.> >> > So, your first one should work as you want it, and your second won't.> > (Yes, you can advance time how many times as you want in whatever> > code-context you want)> >> > By the way, have you checked out the Blit-UGen? I think that one might> > satisfy your needs.> >> >> > Hope that helps,> > Gasten> >> > _______________________________________________> > chuck-users mailing list> > chuck-users(a)lists.cs.princeton.edu> > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users> >> > > -- > 2g> http://micro.ispretty.com> _______________________________________________> chuck-users mailing list> chuck-users(a)lists.cs.princeton.edu> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users _________________________________________________________________ Try Live.com - your fast, personalised homepage with all the things you care about in one place. http://www.live.com/?mkt=en-gb

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Bug; Delay floating point denormalisation
by Kassen 07 Aug '07

07 Aug '07

Fellow Chuckists, "Delay" definately has a floatingpoint denormalisation issue (well, either Delay or Envelope). My feedbackloop went something like this; soundsource => Delay del => dac; del => Envelope feedback => del: .9 => feedback.gain; In this form it has to loop for quite a while before the issue shows up in cpu usage and it will probably be most evident in situations where other Ugens are also using floatingpoint opperations. A smaller value then .9 for the gain should speed up the phenomenon. In my case my "soundsource" had filled the Delay with sound, then went quiet, after some time the CPU meter rose fairly sharply, because of the controll using HID that I had over the feedback envelope I could make the CPU usage go down again with one switch, meaning I'm absolutely positive it was this loop that was to blame. This is on Windows, using the unnoficial ASIO build that Philippe posted, delay time was around one second or so, neither of which should matter that much. Kas.

2 2

kbpiano
by Stephen Sinclair 06 Aug '07

06 Aug '07

Hi, I've been making a few Chuck synths lately and have been wanting a way to play them straight from the keyboard instead of having to attach a MIDI device. I used to do this all the time with FastTracker back in the DOS-ages. Anyways, of course Chuck can get keyboard input, so all that was missing was a mapping from the keyboard keys to MIDI note numbers. Attached is a Chuck script that reads the keyboard and then generates Events containing a note number. These are available through a public class, so a separate Chuck script can wait for the events and spork notes. Note that it's not quite an up-to-scratch implementation of polyphony, since there is only a single event structure that will get overwritten by the next key press. Maybe I'll work on that next... (perhaps using an array to store extra notes, but some timing calculations will need to be made..) Oh yes, and this is designed for a US keyboard, but feel free to change the keymap. I figured it out from the kb.ck output. So anyways, enjoy. :) ps., run concurrently: $ chuck kbpiano.ck kbpiano_example.ck Steve

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Recommended books?
by Carl-Gustaf Harroch 05 Aug '07

05 Aug '07

Chuckist, Are there any books that you recommend for general computerized music? If I want, for instance, to get involved in the development of chuck, which book would you recommend? Especially about general notions such as oscilators. music theory, tempo, sampling etc... I am quite new to all of this but would really love to get into the core of music programming. I have been through the chuck manuals but it is stil quite high level and would like to understand the basis of the language itself. Any help much appreciated. ./Carl

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rec.ck gives an error and rec-auto.ck becomes mono
by 2g 03 Aug '07

03 Aug '07

came up with the idea to turn my podcast http://www002.upp.so-net.ne.jp/buyobuyo/micro/rss.xml "chuck is in dub"(learning chuck} oriented did chuck isthisokay.ck maybe.ck rec.ck and it became [rec.ck]:line(7): class 'Shred' has no member 'getArg' chuck isthisokay.ck maybe.ck rec-auto.ck is okay but mono(might be as-is) is there a better example that i write stereo .wav to my hdd? i also wonder where i do 1 => w.record; 0 => w.record; oh! in the .ck file? this is what i have as isthisokay.ck and maybe.ck is something similar SinOsc s1 => Gain g1 => dac; SinOsc s2 => g1; SinOsc s3 => PRCRev g3 => dac.left; SinOsc s4 => PRCRev g4 => dac.right; .25 => g1.gain; .25 => g3.gain; .25 => g4.gain; while( true ) { Std.rand2(32, 64) * 55.0 / 32.0 => s1.freq; 5322::ms => now; s1.freq() * Std.rand2(8, 16) / 4.0 => s2.freq; s2.freq() * Std.rand2(16, 32) / 16.0 => s3.freq; s2.freq() * Std.rand2(16, 32) / 16.0 => s4.freq; 222::ms => now; } -- 2g http://micro.ispretty.com

1 0

Hardware information?
by Carl-Gustaf Harroch 03 Aug '07

03 Aug '07

Chuckists! First mail in this mailing list and there will probably be many more. I am a newbie with chuck. Been reading a bit and I am very excited to get my brain into this. Thanks all for putting this public. This looks exactly the type of language I ve been looking for in the last couple of months. I come from the programming side rather then musical. Anyway, my question relates to hardware. I am using ubuntu or gentoo OS. Do you have any hardware recommendation for a sound card? My current inboard card flickers the sound when I launch a simple sin loop. Even without any sound, I can hear some noises - I just think my current card is really really bad. Do you have any suggestions for a good sound card? What is the best solution - get an amplifier and use a numeric2analog converter? Secondly, I guess ALSA is the way to go or JACK, any documentation on that? Thanks, ./.Carl

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[oh my god] hanoi.ck
by 2g 03 Aug '07

03 Aug '07

was to keep quiet for a while but.. was just curious what kind of vietnam sound it would make and did chuck hanoi.ck !! arrrrgh what is it doing? it seems to have moved many files instead of making sound sould i undo? if yes how do i? tia -- 2g http://micro.ispretty.com

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can there be many ::ms in while?
by 2g 03 Aug '07

03 Aug '07

have just started coding on chuck was looking for way to let s1 have 3 overtones flying around him i know it should be something other than rand2f to handle integers but my q is about ::ms in while i wonder which one of these are the right way to use them i thought the latter might be safe but it seems to give one never changing long note and maybe only one another is floating around but none of them give me an error style one: SinOsc s1 => PRCRev g => dac; SinOsc s2 => g; SinOsc s3 => g; SinOsc s4 => g; .25 => g.gain => g.mix; while( true ) { 500::ms => now; Std.rand2f(30.0, 220.0) => s1.freq; 170::ms => now; s1.freq() * Std.rand2f(8.0, 16.0) / 8.0 => s2.freq; 75::ms => now; s2.freq() * Std.rand2f(16.0, 32.0) / 16.0 => s3.freq; 111::ms => now; s2.freq() * Std.rand2f(16.0, 32.0) / 16.0 => s4.freq; } style two: SinOsc s1 => PRCRev g => dac; SinOsc s2 => g; SinOsc s3 => g; SinOsc s4 => g; .25 => g.gain => g.mix; while( true ) { 200::ms => now; Std.rand2f(30.0, 220.0) => s1.freq; } while( true ) { 170::ms => now; s1.freq() * Std.rand2f(8, 16) / 4.0 => s2.freq; } while( true ) { 75::ms => now; s2.freq() * Std.rand2f(16, 32) / 8.0 => s3.freq; } while( true ) { 111::ms => now; s2.freq() * Std.rand2f(16, 32) / 8.0 => s4.freq; } -- 2g http://micro.ispretty.com

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About joysticks
by Martin Ahnelöv 31 Jul '07

31 Jul '07

Hello. I feel that I would like to fiddle around a bit with Hid-devices. More precisely those who look like modern console-controllers like Xbox 360's, Playstation 2/3, and Xbox 1's small controller. Is there any gotchas I should know about when both choosing and using these (I have understood that the rumble-feature isn't implemented)? Also, I went to the computer-store today to look for a joystick, but I could only find these third-party ps2/3-controllers. I did find a ps2 to usb-converter, but since I were unsire I though that I should ask here for your experience first. You think it would work? Anyways. I hope I find something more X-box-like, since I'm not too fond of Playstation. Gasten

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Hello and a cool snippet (crash)
by Martin Ahnelöv 22 Jul '07

22 Jul '07

Hello there! I've been playing a little with ChucK for the past few days and I'm really enjoying it. After finally figuring out how to modulate a sinosc's frequency (that one really needs documentation!), I though I were ready for som Hid action. It were actually much easier to set it up than I thought - but still a bit harder than I would like (probably due to the lack of documentation). Well, I successfully miss-used the program and got a couple of different crashes (woo!). I think the following is cool. // Patch SinOsc s => Gain g => dac; SinOsc lfo => blackhole; 1.0 => lfo.freq; 300 => lfo.gain; 0.4 => g.gain; // which mouse 0 => int device; // hid objects Hid hi; HidMsg msg; // try if( !hi.openMouse( device ) ) me.exit(); <<< "mouse '",hi.name(), "' ready...", "" >>>; while(true) { hi => now; while(hi.recv(msg)&&msg.isMouseMotion()) { lfo.last() * (msg.deltaX-msg.deltaY) => s.freq; //rubbie! } } Try changing the msg.deltaX-msg.deltaY to msg.deltaX*msg.deltaY or msg.deltaX/msg.deltaY for the crashes. Bug? This might be Linux-specific. By the way, isn't msg.deltaX and Y pretty inconsistent from the rest of the API? shouldn't it be msg.deltaX()? Well, Thanks for a great tool! Gasten http://hauntedhouse.wordpress.com/2007/07/22/return-of-the-chuck/

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ub but 10.3.9 ?
by 2g 16 Jul '07

16 Jul '07

is chuck ub okay --- maybe not excuse ne got confused the latest bin for osx says it's ub but runs on 13.3.9 ? am on 10.3.9 and about to do something more than chuck -h (but not yet now how to) should i downgrade the version? if yes which one will be the best? i don't have xcode on my iBookG4 -- 2g http://micro.ispretty.com

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Re: [chuck-users] chuck-users Digest, Vol 24, Issue 5
by kijjasak triyanond 13 Jul '07

13 Jul '07

Hi. I'd like to request for a feature. I'd like to be able to read a list of UGens that is chucked from a UGen. Or a list of UGens chucked into a UGen also. That'd be quite useful for programs with dynamic chucking. For example, for checking the order or wether two UGens are connected or not. Thank you ^_^. - kijjaz

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renamed cuz i wanted both alsa and jack version
by 2g 11 Jul '07

11 Jul '07

is that okay? am on Slackintosh11.0 and did both "make linux-alsa" and "make linux-jack" so renamed the jack version "juck" will this bring me any trouble if i really enter the chuck coding world? tia? 2g----- http://micro.ispretty.com -------------------------------------- Easy + Joy + Powerful = Yahoo! Bookmarks x Toolbar http://pr.mail.yahoo.co.jp/toolbar/

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osc guitar
by Joshua Patriquin 10 Jul '07

10 Jul '07

Ge, I am just entering the world of programming and OSC, though I've been a musician for a long time, and am familiar with MIDI. I am assembling a guitar and would like very much to operate a computer using OSC and skipping MIDI altogether (in fact I would consider my project a failure if I must resort to MIDI). Several programs in the subworld of music electric ring out... Csound, yours, supercollider, etc. Why is yours better than the rest? How is it different? Sorry for asking to be sold to, but I am a musician and not a programmer... I want to learn and need a place to start. How should I interface my guitar (from RMC piezo system) with my computer ( A brand new ripping machine) and with you software? Any data you can offer, as a teacher to a young student, would be greatly appreciated. This project, if successful, would mean the realization of a beautiful vision. THanks, Joshua Patriquin

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LOSS Livecode festival, Sheffield UK, 20-22nd July 2007
by alex 04 Jul '07

04 Jul '07

LOSS Livecode - Festival of Audio Visual Livecoding 20-22 July 2007, Sheffield UK http://livecode.access-space.org -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- A small festival bringing together cutting edge livecoding musicians and a/v artists from around the UK and beyond. Livecoding is where computer programming becomes a performance art; improvising a performance using the text of a dynamic programming language. Access Space has commissioned new works specifically for LOSS Livecode and the 2 days will feature performances, workshops, talks and informal presentations. The daytime sessions will include introductory workshops and presentations on cutting edge music and video livecoding environments including Fluxus, IXI Quarks, SuperCollider, Impromptu and ChucK. The evening sessions will feature performances by livecoding pioneers as well as collaborative jamming sessions. Performers and presenters include; Robert Atwood, Jan Berkel, Sylvain Le Beux, Oliver Bown, Alberto de Campo, Graham Coleman, Nick Collins, Jamie Forth, Karsten Gebbert, Dave Griffiths, Tom Hall, Martin Howse, Ryan Jordan, Jan-Kees van Kampen, Jonathan Kemp, Craig Latta, Thor Magnusson, Mattin, Alex McLean, Fabrice Mogini, Click Nilson, Fredrik Olofsson, Jim Prevett, Julian Rohrhuber, Andrew Sorensen, Adrian Ward, Luke Whitmore, Renate Wieser, Matthew Yee-King. More details of the events can be found at: http://livecode.access-space.org -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Access Space is the UK's first "Free Media Lab" - a community space equipped with locally recycled computers running free, open source software. We provide a framework, resources and support for self-directed learning, arts and creativity. Taking part is totally free, and anyone can walk in and contribute. http://access-space.org LOSS Livecode is organised by Access Space, TOPLAP and Lurk. Funded by Arts Council England, Yorkshire, The PRS Foundation and Access Space.

1 0

classed-ugen-array-limit, Re; NullPointerException
by Kassen 04 Jul '07

04 Jul '07

At least some clarity; I nailed down my crash (after considerable amounts of baffled looks and cursing). This is refering to the latest version of the Mini as well as the latest, greatest, ASIO enabled, version of pure ChucK, both on XP. Let's first establish that while expensive if actually used, the following is fine; ------------------ SndBuf array[110]; ----------------------- now considder this; ---------------------------------- // I picked this 10 at random, for length 5 it'll crash too Foo x[10]; class Foo { // at length 10 it'll run but this will crash(!!??) SndBuf array[11]; } -------------------------------- So; we seem to be having a issue with maximal array sizes for arrays of Ugens within classes. I tried but there is no issue with manually going; -------------- class Foo { SndBuf a; SndBuf b; SndBuf c; etc, etc, etc } -------------------------- At least not up to and incuding 12 buffers after which I was bored with defining them. I'm 99% certain this also solves the "kilo-shred-crashing" issue I reported a while ago. This isn't likely to affect many people because we *are* talking about exceptionally large amounts of Ugens but it's very hard to work around. One solution is to simply spork functions that define the class instances instead of defining them in a array (this works) but while this allows you to conveniently define CPU clogging amounts of Ugens it doesnt enable you to easily adress them after the functions were sporked so with the current state of ChucK that gives you a whole lot of garbage.I also tried to see wether this was just SndBuf but using Gain instead also crashes so I think it's safe to asume all other Ugens will too. Yours, Kas.

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New to ChucK => couple of questions (-s) (Midi Relelated);
by Steve Salmon 04 Jul '07

04 Jul '07

Hey. I'm new to programming and ChucK, but im loving it. i'm very keen to learn as I like making music in weird ways :) I have just made something i call "my crappy riff generator" (spits out random patterns and loops them for 8 bars, repeats process untill i heard something i like and i break out of the random loop kinda thing and let it play longer). I am trying to get this running through Abelton to drive a softsynth. I found the MIDIsender class that someone here created (well done!!), and *can* get Chuck sending some Midi Note Ons to my softsynth .. but and bare with me because maybe i dont have some of the underlying concepts right in my head. When I try and run a ChucK file whilst abelton is open i get a "could not open channel/ cannot initialise audio device" type error.. (sorry i dont have the error specifics infront of me right now), but from what i can gather Abelton is in charge of the DAC when it tries to run a ck file and thus it whinges . To get around this i used the -s option when running my script (silences the audio) and it sort of *runs* but ChucK seems to have zero concept of time once the -s option is used. Its a mess of overlapping note ons... everything happens at once and worse. Even when i tested with a few lines of <<< insert message here >;> 1::second => now; all the messages get printed to the screen at the same time if i use the -s option. So its a catch 22 situation, i cant run my ck files whilst abelton is running without the -s option , but when i run ck files with the -s option all timing goes out the window. Awaiting answers which point to a large white elephant sitting in the room. ;) Cheers Steve NB. I dont have any midi clock setup ( i cant find how to do this in manual ) but chuck should still play notes in ableton like it does in chuck surely... _________________________________________________________________ http://newlivehotmail.com

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chuck~ v1.1 (universal binary)
by garton＠columbia.edu 28 Jun '07

28 Jun '07

Everyone -- Version 1.1 of the [chuck~] Max/MSP object is available for free download: http://music.columbia.edu/~brad/chuck~/ for Macintosh OS X (universl binary). This is now consistent with ChucK 1.2.0.8. [chuck~] imbeds the ChucK music-programming language in Max/MSP, bringing a sophisticated set of synthesis and signal-processing tools into the Max/MSP environment. [chuck~] also features an advanced timing and scheduling system in addition to a functional-style programming interface for algorithmic operations. Full source for the object and the language are also on-line. No Windows XP version is available at present -- sorry! This is a fun object -- enjoy it! For more information about ChucK, visit the ChucK web page: http://chuck.cs.princeton.edu/ Brad Garton Columbia University Computer Music Center http://music.columbia.edu/~brad

1 0

Gen10.coefs abuse?
by Atte André Jensen 26 Jun '07

26 Jun '07

Hi In my eagerness to play with GenX I coughed up the following code: Phasor osc => Gen10 g10 => dac; int i; [1., 0.5, 0.3, 0.2] @=> float a[]; 440. => osc.freq; while(true){ for(0 => i; i< a.cap(); i++){ Std.rand2f(-.1,.1) +=> a[i]; if(a[i] < 0 || a[i] > 1) { Math.round(a[i]) => a[i]; } } g10.coefs(a); 50::ms => now; } Fortunately the update is glitch free, unfortunately it seems that coefs() is a fairly expensive function :-( I realize that GenX might be supposed to be used with static coefs, but the above seems like it holds a lot of potential. It there a way to to what I do more efficiently or am I simply not supposed to do this? -- peace, love & harmony Atte http://atte.dk | http://myspace.com/attejensen http://anagrammer.dk | http://atte.dk/compositions

2 1

Rhodey.noteOff
by Kassen 23 Jun '07

23 Jun '07

Hi, list! It seems that Rhodey needs some attention. When I make it sound, using 1 => rhodey.noteOn; then let it sound it's fine (and decays on it's own like it should) but when it gets a 1 => rhodey.noteOff; before it has decayed it will instead drone on forever at it's current timbre and volume. 0 => rhodey.noteOn; does work, if a little abruptly. This is unlike the behaviour of the other STK fm-based instruments so I think it's a bug. It sounds to me like the issue is in envelope behavour as Rhodey normally keeps evolving it's sound over the cource of a note but once it gets stuck it stops evolving, aside from what I think is the LFO. I just checked Wurley for completenes's sake and Wurley has the same issue. BeeThree, for example, is fine, as is HevyMetl. Yours, Kas.

1 0

ChucK on 64-bit Linux, bad news
by Ken Restivo 23 Jun '07

23 Jun '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Alas, the hack I was going to do will not work, and ChucK is out of the picture for me until the ChucK developers are able to make it 64-bit clean. I was planning to build JACK in 64-bit and 32-bit versions and then build ChucK in 32-bit mode and link it against the 32-bit versions of the libraries, and thus have ChucK use 32-bit libraries to converse with the JACK server and all the other 64-bit softsynths and audio applications. But I have been told by one of the JACK developers that this would not work anyway, because you can't have 32-bit and 64-bit apps conversing with the same JACK server. There are pointer-size fixes they could do to enable this, but not too many people clamoring for it, so it's low priority. I'm told that it is possible to run ChucK on a 64-bit Linux system, by turning it into a 32-bit system: one would have to build an entire 32-bit chroot environment, including *all* audio apps, and run *all* the audio apps, and JACK itself, in 32-bit mode. I ain't going there. Cool language, though. I'll revisit it a couple years from now, and see how it's progressed. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGdrrYe8HF+6xeOIcRAgMUAKDI9qhdQt8G/vO3tK/HT2h/7N+JzACeJDMn g9o/sPK5BTMMxoKzqajG/0s= =zA+/ -----END PGP SIGNATURE-----

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