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

MIDI - rattus.net (Bruce Murphy)
by Josh Lawrence 10 Sep '07

10 Sep '07

Hello list! Just picked up a Roland Fantom XR, and I'm anxious to play around with it. Mentioned a few days/weeks/months ago on the list is Bruce Murphy's MIDI stuff for ChucK located here: http://www.rattus.net/~packrat/audio/ChucK/ (I think this was mentioned by Kassen...) How do I go about making this work? Can someone give me a basic tutorial as to how to integrate this into my ChucK environment? I see that there are two things that I need to worry about: midisender.ck std.stom ??? Thanks, Josh -- Josh Lawrence http://www.hardbop200.com http://www.joshlawrencetrio.com

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.set() in example adsr.ck
by 2g 09 Sep '07

09 Sep '07

.set doesn't seem to be in the manual.pdf but thanks to the example adsr.ck i found it super useful when setting up things all at once and am wondering which parameter of ADSR it takes care of am using something like: sun_adsrs[n].set( 10::ms, 30::ms, .3, 5::ms); but before that was trying something like this (which didn't work ... i remember): sun_adsrs[n].attackTime(5::ms); sun_adsrs[n].attackRate(1.0); sun_adsrs[n].decayTime(30::ms); sun_adsrs[n].decayRate(.3); sun_adsrs[n].sustainLevel(.1); sun_adsrs[n].releaseTime(5::ms); sun_adsrs[n].releaseRate(0.0); there seems to be a lot of parameter over there in ADSR but don't see any comma in .set() to ignore(?) those tia -- 2g http://micro.ispretty.com

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KBHit on a macbook and some general questions
by Luigi Rensinghoff 09 Sep '07

09 Sep '07

Hi Chuckers i came across chuck and i am just checking it out. I was a PD-User for a while, and i have some questions. One is very practical and another is more general. I am on a Macbook using miniaudicle, for some reason KBHit does not produse any output. I am sure this was asked before, but i did not find it on the lists, any suggestions ?? How is chuck compared to Supercollider ? Would you say it has a Performance-advantage compared to Supercollider ? Thanks for now Bye Luigi

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Breakage - ChucK application?
by Josh Lawrence 07 Sep '07

07 Sep '07

Did you guys know about this? http://www.blackholeprojector.com/ It is a project called Breakage that uses ChucK as a back-end and a Java application as the front-end. Are there other projects like this? Josh -- Josh Lawrence http://www.hardbop200.com http://www.joshlawrencetrio.com

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Chuck and Grad School
by mike clemow 04 Sep '07

04 Sep '07

Hi folks, At the risk of being slightly off-topic, I wanted to write to the community to say that I'm taking a class right now on interactive sound at ITP (itp.nyu.edu) and I will be trying to do as many of the exercises as I can using Chuck. There is a strong Max/MSP contingent here and it seems not that many people had heard of or used Chuck much--this surprised me. I would really like to introduce this crowd to Chuck; one, because this group is a very pioneering in the field of interactive media and, two, because I'm very much a believer in Chuck and it's paradigm. Part of the class requirements is going to be keep an audio sketchbook and there will be an associated website for each of the students. Once it's set up, I will send out the link so that the community (especially newbies like me) can benefit from some vaguely structured example set. The agenda for the class is generally an introduction to electronic sound (historically and conceptually). I hope to lay some groundwork both for further adoption as a platform here at ITP as well as some resource building for the Chuck community. I hope it pans out. (As an after-thought, it occurs to me that I may have classmates out there on this list. Speak up!) Cheers, Michael

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spork ~ { } => big crash.
by Robin Davies 04 Sep '07

04 Sep '07

I'm not sure if this is a bug or not. Whether it supposed to work or not, I'm guessing that it shouldn't crash. Found in: miniaudicle 0.1.3.7. This works: spork ~ DelayedNoteOff(duration); This causes a crash. (In fact, anything with a { } following "spork ~" crashes.: fun void Play(float note, float velocity, Dur duration) { .... spork ~ { duration => now; instr.noteOff(0.6); } } Trying to execute any ensemble that includes this fragment causes miniaudicle to exit with a fatal error. If it's a bug, and if there's a bug tracking system, let me know, and I'll log full and exact details. The language spec is ambiguous about whether this is legal or not. But I could have sworn that this worked in previous builds (if for no other reason than that I liked the idea so much that I was tempted to swipe the idea for a language of my own). Robin Davies Lead Software Developer Quest Web Reports Quest Software 613.270.1569 Identity Management for the Windows Enterprise <http://wm.quest.com/reg/marketing/landing/identitymanagement/> : See how Quest helps you leverage your existing investment to solve the identity management challenge!

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Feature Request/Clarification?
by Adam Tindale 03 Sep '07

03 Sep '07

Hi, I am a little confused about the me.args() functions that are available. It appears that you can pass arguments to shreds during instantiation. What about types? Is the data implicitly passed? Is it only primitive types that we should be passing here? I am assuming passing arrays would cause a massive ChucK boom? What about passing arguments to a currently running shred? I am using * as an imaginary operator that tells ChucK to pass arguments to running shreds. chuck * 1:foo This feature would be endlessly useful. I would like to write something like this: SinOsc s => dac; 440. => s.freq; true => bool keeplooping; while (keeplooping = true){ if( me.argHasMessage(0) ){ keeplooping=me.arg(0); } } Then you could do something like this: chuck * 1:false A related feature would be to declare types and max numbers of arguments for the shred. That way if a passed value violated these declarations the compiler would throw an error and we could begin the search, lest we err. Any light that can be shed on the topic of command line arguments would be greatly appreciated. The only docs appear to be on the web and not in the manual. I would love to rectify this. --art _________________________________________________________________ Enter to win a night a VIP night out at TIFF http://redcarpet.sympatico.msn.ca/

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Re: [chuck-users] (casting) in chuck?
by Adam Tindale 03 Sep '07

03 Sep '07

Hey Jochen, Std.rand() gives you a random int. Std.rand2(int min, int max) gives you an int between min and max. When I changed rand() to rand2() everything worked just fine for me. Eduard's solution is nice because he just sidestepped the casting. Also, notice that he disconnects the ugen with the unchuck operator. Nice form. Happy ChucKing. --art JH wrote: >Eduard, > >thanks, that does work. Not sure what i was doing wrong... >Thanks! >- j > >eduard aylon wrote: >>Hi Jochen, >> >>don't know what's wrong with your code, but the following works for me: >> >>UGen u[2]; >> >>SinOsc s @=> u[0]; >>SawOsc w @=> u[1]; >>0 => int i; >>while( true ) >>{ >> u[i&1] => dac; // connect one osc >> u[1-(i&1)] =< dac; // disconnect the other one >> i++; >> 1000::ms => now; >>} >> >>hope this helps, >> >>eduard >> >>On Aug 31, 2007, at 7:00 PM, Jochen Hartmann wrote: >> >> >>>Hi, >>> >>>I am total newbie to chucK. been trying to make time to play with it >>>more ever since last year but somehow that time didnt arrive until now. >>> >>>So for today's silly question I was wondering if there is some kind of >>>implicit casting of objects in chuck? >>> >>>For instance I want to fill an array with specific UGens and then >>>randomly retrieve one like so: >>> >>>//array of UGens >>>UGen items[2]; >>>SinOsc sin @=> items[0]; >>>SawOsc saw @=> items[1]; >>> >>>//later in my loop >>> >>>Std.rand(0,1) => int item; >>>items[item] @=> UGen mysteryOscillator; >>>mysteryOscillator => dac; >>> >>>Obviously this is not working right now and I am wondering if I am doing >>>something wrong syntactically or whether I am trying to do something >>>that ChucK can't do. >>> >>> >>>thanks for the help ! >>>best >>>- j >>> >>> >>> >>>_______________________________________________ >>>chuck-users mailing list >>>chuck-users(a)lists.cs.princeton.edu >>>https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >>> >>_______________________________________________ >>chuck-users mailing list >>chuck-users(a)lists.cs.princeton.edu >>https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >> >> > >_______________________________________________ >chuck-users mailing list >chuck-users(a)lists.cs.princeton.edu >https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > _________________________________________________________________ Former Police Officer Paul Gillespies TAKE BACK THE INTERNET tips and tricks, watch the video now http://safety.sympatico.msn.ca/

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(casting) in chuck?
by Jochen Hartmann 02 Sep '07

02 Sep '07

Hi, I am total newbie to chucK. been trying to make time to play with it more ever since last year but somehow that time didnt arrive until now. So for today's silly question I was wondering if there is some kind of implicit casting of objects in chuck? For instance I want to fill an array with specific UGens and then randomly retrieve one like so: //array of UGens UGen items[2]; SinOsc sin @=> items[0]; SawOsc saw @=> items[1]; //later in my loop Std.rand(0,1) => int item; items[item] @=> UGen mysteryOscillator; mysteryOscillator => dac; Obviously this is not working right now and I am wondering if I am doing something wrong syntactically or whether I am trying to do something that ChucK can't do. thanks for the help ! best - j

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Re: [chuck-users] replace crossfade (bug)
by Kassen 02 Sep '07

02 Sep '07

Hmmmmmm, we seem to have another bug. The code pasted below (intended to be saved as "xfade.ck") is intended to set up a small patch, then reload itself (hopefully in edited form) in a crossfading manner every time the "end" key is pressed. As far as I can see it's syntactically correct ChucK and the parser agrees with me (both the latest and the last version will try to run this without complaints). However, uppon pressing any key the whole thing will get stuck and it will get stuck so badly that Windows only realises it's stuck as soon as I try to force it to quit. Moving the definition of the keyboard and it's message out of the class will crash the whole thing immediately for reasons unkown (namespace?). Moving the whole keyboard reader to it's own sporked shred outside of the class, then trying to use event signalling to set in the x-fade will also get the whole thing stuck. The issue isn't in the atempt to have some code Machine.add() itself as a condition either. I've been at this for a few hours now and I'd say this looks quite bad, kicking out everything that involves reading the keyboard (and making the condition time-dependant) fixes it so I suspect there is something inbetween classes and reading the keyboard profoundly wrong. For now I give up, Spencer? Ge? Kas. Code pasted below, comments aimed at new users, might prove usefull/fun once we get to the bottom of why it crashes so terribly, stay tuned. ==============================================- //construct a "penny", penny is named after a brand of faders popularly used in DJ mixers Penny fade; //realy simple patch to invite editing SinOsc s => Gain g => fade.in; fade.out => dac; SinOsc lfo => g; //multiplication, i.e. a VCA 3 => g.op; second => lfo.period; //infinite loop while(true) second => now; class Penny { //"in" and "out" are simply there for convenience Gain in => Envelope fader => Gain out; //edit this to something musical second => dur fadeTime; //fade-in, this happens at the moment the instance is constructed fadeTime => fader.duration; 1 => fader.keyOn; //create keyboard interface and asociated message Hid hi; HidMsg msg; hi.openKeyboard( 0 ); //get the shred ID, needed to kill it later me.id() => int myID; //run keyboard listening in its own shred spork ~ kb_listener(); fun void kb_listener() { while(true) { hi => now; //207 refers to the "end" key //edit this if you need that key for other purposes if(msg.isButtonDown() && ( msg.which == 207) && Machine.add( " xfade.ck" ) ) { 1 => fader.keyOff; fadeTime => now; Machine.remove(myID); } } } }

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Re: [chuck-users] newbie questions
by Adam Tindale 02 Sep '07

02 Sep '07

Hi, Welcome Robin! You have asked a question that has been at the back of my mind for a long time. Thanks! <snip> > > >Sure! Just create a simple file that just holds a line like this; > >.8 => dac.gain; > >This will affect the dac's gain, no surprise there, but as the dac is >shared by all shreds this work more or less like a master fader. Replace >the .8 by any number between 0 and 1, depending on how severe the clipping >is, turn it down further if clipping re-occurs. > fadeout.ck exists I think. You can fadeout all of chuck with this method but it isn't great for smoothly dumping one shred while keeping the others active. <snip> > > These two questions lead me to wonder if there is any way of exposing > the implicit mixer prior to the DAC, so that levels and mutes on each > channel/shred could be controlled. > > > >What you could do is supply each shred with a envelope before the dac and >have that one ramp down before making the shred itself exit, based on some >command? > I like this suggestion. I would love to have some boilerplate code so that you could work with shreds in a kind of mixing environment where each shred had it's own volume control that could be *easily* (not necessarily simply) accessed from another place. I have used OSC in the past but I would love to see some other suggestions, possibly using command line arguments. This is a worthy tutorial for the manual ;) Anyone got something working? --art _________________________________________________________________ Former Police Officer Paul Gillespies TAKE BACK THE INTERNET tips and tricks, watch the video now http://safety.sympatico.msn.ca/

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No sound with ChucK
by Aggelos Orfanakos 02 Sep '07

02 Sep '07

Hello, I've installed ChucK on my system (Gentoo Linux), I run chuck foo.ck (foo.ck from the tutorial) and there is nothing to listen. The strange thing is I don't get any errors either. It's like something is muted. I experimented with alsa-mixer but I had no results. Any ideas? Thanks in advance. -- Aggelos Orfanakos 0x89D2D3D0 (GPG) http://agorf.gr/

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newbie questions
by robin.escalation 01 Sep '07

01 Sep '07

Do I downloaded the new ASIO patch to version 1.2.1.0 and everything worked perfectly in Windows XP feeding an RME Fireface. Congrats to all for making this such an exciting application! I look forward to live coding experiments using miniAudicle but have a couple of questions of a newbie nature. As I add shreds to the VM the output overloads. Is there an easy way of tweaking the master out all at once, without individually editing each shred file? Better yet, is there a way of making the shreds "output-sensitive" so they adjust automatically using some standard audio amplitude summing law? Killing a shred happens abruptly and not always too musically. How can this be done for nicer sonic output in performance? These two questions lead me to wonder if there is any way of exposing the implicit mixer prior to the DAC, so that levels and mutes on each channel/shred could be controlled. A further usability issue was revealed when I tried to use a patch from the examples folder that required sound files. These were referred to by relative pathing, but this only works if the script is run in its own folder. It appears there is no way to programmatically specify the root folder. So how does one integrate patches like this into a miniAudicle session? Thanks for your help with these very practical issues. I will be writing an article soon on ChucK for my blog diagrammes modernes, so will incorporate any tips. ----- Robin Parmar robinparmar.com

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Re: [chuck-users] priorities for next release
by Adam Tindale 01 Sep '07

01 Sep '07

> > >Yes, we would all like this, I think. At least we have a WiKi page where >everybody can post additions, remarks and requests which should at least >decrease the strain on maintaining the manual. I believe Adam Tindale was >the last to be semi-officially in charge of the manual but other things >took his time. I'd volunteer but I'd need a proofreader as I'm not a native >English speaker and I still don't speak any Latex at all (the manual is >done in Latex) > >At least most things can be found by searching the list archives and the >manual isn't *that* out of date. Aside from the latest greatest stuff this >matter might be one of the worst missing bits. > > Hi All, I have been silent for a long while. I am always happy to proofread and hack stuff into the manual and make the commits (as long as Ge doesn't kick me off CVS). Like Ge, I just got a teaching gig and I am a bit swamped being new at all this. I have pleaded in the past for other people to submit tutorials or find mistakes in the manual and pass them on to me and the whole ChucK team. It now seems that there are so many experts that this dream is coming true. Most of what I did for the manual was to edit the original APIs into some semi readable form. A lot of that work was done by Ge and Phil and I just merely put it into LaTeX. There have been many people talking on the list about knowing how something works and not seeing it in the manual. If you do know and it isn't there, just write something up and tell me where you would like it be. The hardest part for me is starting something. If you get it started then the rest isn't so bad. I haven't worked on the manual in a long time and I am seeing that it is badly out of date. I will do my best to devote some time to it in the coming months (I am hoping to teach ChucK, so a good manual helps me too). If you have something you would like added to the official docs please send it along to me directly or via the list and I will be happy to add it. --art _________________________________________________________________ Former Police Officer Paul Gillespies TAKE BACK THE INTERNET tips and tricks, watch the video now http://safety.sympatico.msn.ca/

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priorities for next release
by Ge Wang 31 Aug '07

31 Aug '07

Greetings! We are nearing the next very sporktacular release of ChucK and want to coordinate with you on organizing and prioritizing some bug fixes/ features/updates. We've been scouring through the forums, wiki pages, and posts and collected much good info. Thanks to all who have been kind and patient enough to enter requests, reports, and suggestions into the various pages. At this stage, we'd like to get your input on prioritizing them for the new release (in about 2 weeks). For this purpose, we've created two new wiki pages for feature requests/reports and bug reports/requests from here: http://wiki.cs.princeton.edu/index.php/ChucK/Bugs http://wiki.cs.princeton.edu/index.php/ChucK/Features Please enter full descriptions and concise accompanying code when helpful. While we can't guarantee that these would make it into the immediate next version, they are very helpful in getting a sense of disaster zones that needs more urgent attention, and is a chance to tidy up the information. If you don't want to deal with the wiki directly, feel free to post here or to chuck-dev, and our uh wiki specialists will transfer the text there. As for the manual, let's keep going here: http://wiki.cs.princeton.edu/index.php/ChucK/Manual Thank you very much! Let us know if you have any questions. Keep on ChucKin' Best, chuck team

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chuck on linux-amd64?
by Robert Edge 28 Aug '07

28 Aug '07

I miss chuck. I was starting to get in to playing with last year, but I have since decided to go with a pure 64 bit system. I've got everything tuned and working the way I want now, but no chuck. I build every release I notice come out but still things do not work on Linux-amd64. What is the status of chuck and this architecture? I seem to remember talk of the issue being looked in to some time ago. Also, for what it's worth somebody is keeping a broken build in the Debian repositories, I've sent a bug report but no one seems to care. I think it's a shame that someone could get the wrong impression about this wonderful project.

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heads up; follow up; up chuck
by Ge Wang 28 Aug '07

28 Aug '07

Greetings! As announced on the [chuck] list, we've just released a new major version (1.2.1.0) of chuck that introduces audio analysis in ChucK. For more details see: http://chuck.cs.princeton.edu/uana/ The paper: http://soundlab.cs.princeton.edu/publications/uana_icmc2007.pdf Just want to thank everyone for the recent discussion and also re- prioritizing of features. We are by no means done, and many new features outlined are underway. So please continue! We are hoping for several new releases in the coming weeks/months. Thanks again! Alrighty, go check out UAna, upchuck, and the new release! Let us know how it goes (or crashes)!! Best, chuck team

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rec2.ck
by 2g 28 Aug '07

28 Aug '07

in another japanese chuck community i asked if somebody knows about "rec2.ck" which i cannot find in the examples dir and at last a person gave me the sample he found mm? this one seems to create 2 files instead of one stereo at this moment we cannot write stereo things to HDD? then i have to use sox to combine these maybe...? rec2.ck (not the original?): dac.left => WvOut wL => blackhole; dac.right => WvOut wR => blackhole; 4::second => dur l; now + l => time later; "./wavs/rec2L.wav" => wL.wavFilename; "./wavs/rec2R.wav" => wR.wavFilename; <<<"writing to file: ", wL.filename()>>>; <<<"writing to file: ", wR.filename()>>>; while ( now < later ) 500::ms => now; wL.filename() => wL.closeFile; wR.filename() => wR.closeFile; <<< "rec2 done." >>>; -- 2g http://micro.ispretty.com

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list oriented ways to make this more simple?
by 2g 28 Aug '07

28 Aug '07

mmm...i seem to be writing same things too much can't any of these done in list[] oriented ways? sa.ck: SinOsc sun1 => Pan2 ps1 => dac; SinOsc sun2 => Pan2 ps2 => dac; SinOsc sun3 => Pan2 ps3 => dac; SinOsc sun4 => Pan2 ps4 => dac; SinOsc sun5 => Pan2 ps5 => dac; SinOsc moon1 => Pan2 pm1 => dac; SinOsc moon2 => Pan2 pm2 => dac; SinOsc moon3 => Pan2 pm3 => dac; SinOsc moon4 => Pan2 pm4 => dac; SinOsc moon5 => Pan2 pm5 => dac; .1 => ps1.gain; .1 => ps2.gain; .1 => ps3.gain; .1 => ps4.gain; .1 => ps5.gain; .1 => pm1.gain; .1 => pm2.gain; .1 => pm3.gain; .1 => pm4.gain; .1 => pm5.gain; 27.5 * Math.pow(2.0,(3.0/12.0)) => float oilsun; 27.5 * Math.pow(2.0,(5.0/12.0)) * 7.0/8.0 => float oilmoon; oilsun * Std.rand2(16,8) / 8.0 => sun1.freq; oilsun * Std.rand2(16,8) / 4.0 => sun2.freq; oilsun * Std.rand2(16,8) / 4.0 => sun3.freq; oilsun * Std.rand2(16,8) / 4.0 => sun4.freq; oilsun * Std.rand2(16,8) / 4.0 => sun5.freq; oilmoon * Std.rand2(16,8) / 8.0 => moon1.freq; oilmoon * Std.rand2(16,8) / 4.0 => moon2.freq; oilmoon * Std.rand2(16,8) / 4.0 => moon3.freq; oilmoon * Std.rand2(16,8) / 4.0 => moon4.freq; oilmoon * Std.rand2(16,8) / 4.0 => moon5.freq; fun void ga() { while(true) { 900::ms => now; Std.rand2f(-1.0,1.0) => pm1.pan; oilmoon * Std.rand2(16,8) / 8.0 => moon1.freq; Std.rand2f(-1.0,1.0) => pm2.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => moon2.freq; Std.rand2f(-1.0,1.0) => pm3.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => moon3.freq; Std.rand2f(-1.0,1.0) => pm4.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => moon4.freq; Std.rand2f(-1.0,1.0) => pm5.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => moon5.freq; 900::ms => now; Std.rand2f(-1.0,1.0) => pm1.pan; oilmoon * Std.rand2(32,16) / 8.0 => moon1.freq; Std.rand2f(-1.0,1.0) => pm2.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => moon2.freq; Std.rand2f(-1.0,1.0) => pm3.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => moon3.freq; Std.rand2f(-1.0,1.0) => pm4.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => moon4.freq; Std.rand2f(-1.0,1.0) => pm5.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => moon5.freq; } } fun void ma() { while(true) { 7500::ms => now; Std.rand2f(45.0,75.0) => oilsun; Std.rand2f(45.0,75.0) => oilmoon; } } fun void pa() { while(true) { 700::ms => now; Std.rand2f(-1.0,1.0) => ps1.pan; oilsun * Std.rand2(16,8) / 8.0 => sun1.freq; Std.rand2f(-1.0,1.0) => ps2.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => sun2.freq; Std.rand2f(-1.0,1.0) => ps3.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => sun3.freq; Std.rand2f(-1.0,1.0) => ps4.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => sun4.freq; Std.rand2f(-1.0,1.0) => ps5.pan; sun1.freq() * Std.rand2(16,8) / 4.0 => sun5.freq; 700::ms => now; Std.rand2f(-1.0,1.0) => ps1.pan; oilsun * Std.rand2(16,8) / 8.0 => sun1.freq; Std.rand2f(-1.0,1.0) => ps2.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => sun2.freq; Std.rand2f(-1.0,1.0) => ps3.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => sun3.freq; Std.rand2f(-1.0,1.0) => ps4.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => sun4.freq; Std.rand2f(-1.0,1.0) => ps5.pan; moon1.freq() * Std.rand2(16,8) / 4.0 => sun5.freq; } } spork ~ ga(); spork ~ ma(); spork ~ pa(); while( true ) { 3333::ms => now; } -- 2g http://micro.ispretty.com

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what is this stk control change thing?
by Fitzpatrick, Denis F 25 Aug '07

25 Aug '07

My confusion is deep and multifaceted, but just to get started, I gather it's a way of setting various instrument parameters, but how does it differ from like-named (where they exist) method calls? I made a Googley effort to find this explained, but failed. I would gladly accept an answer in the form of a link. Denis Fitzpatrick Boys Town National Research Hospital (402) 498-6378 fitzpatrickd(a)boystown.org

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TiltSensor on linux
by Cédric Krier 25 Aug '07

25 Aug '07

Hi, here is the patch updated (for chuck 1.2.1.0) for tiltsensor on linux. The driver for the sensor is now in the kernel version 2.6.22. I hope it will be add in the next release. Thanks

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CurveTable strange behaviour
by eduard 23 Aug '07

23 Aug '07

The following patch shows either a misbehaviour or a misuse of CurveTable, dunno. Two different functions (rand_coefs1 and rand_coefs2) are used to assign coefficients to CurveTable.coefs(). While the first seems to do the job alright, the latter doesn't and throws the following error message: [chuck](via CurveTable): usage: size, time1, value1, curvature1, [ timeN-1, valueN-1, curvatureN-1, ] timeN, valueN) Maybe I'm doing something wrong that | don't see, but can't understand why this happens. Could anyone explain? Also, don't understand why the error message tells me the size needs to be supplied. The examples say that coefs are arrays of the type [time1, value1, curvature1, ..., timeN-1, valueN-1, curvatureN-1, timeN, valueN] and Gen's size, if I'm not mistaken, is hard coded as 4096. Thanks in advance, eduard The patch: fun void rand_coefs1( CurveTable table ) { [-1, 0, 1 ] @=> int curvature[]; [0., 0., curvature[ Std.rand2(0, 2)], 1, Std.rand2f(.5,1.), curvature[ Std.rand2(0, 2)], 2, Std.rand2f(.5,1.), curvature[ Std.rand2(0, 2)], 3, Std.rand2f(0.,1.), curvature[ Std.rand2(0, 2)], 4, Std.rand2f(0.,1.), curvature[ Std.rand2(0, 2)], 5, Std.rand2f(0.,1.), curvature[ Std.rand2(0, 2)], 6, Std.rand2f(0.,1.), curvature[ Std.rand2(0, 2)], 7, Std.rand2f(0.,1.), curvature[ Std.rand2(0, 2)], 8, Std.rand2f(0.,1.), curvature[ Std.rand2(0, 2)], 9, 0] @=> float coefs[]; coefs => table.coefs; <<<"\n", "CURVE 1:\n" >>>; <<<"\t index", " value", " curvature">>>; <<<"\t----------------------------------","\t">>>; for( 0 => int i; i < 8; i++ ) <<<"\t",coefs[i++], coefs[i++], coefs[i]>>>; <<<"\t", coefs[8], coefs[9] >>>; <<<"\t----------------------------------","\t">>>; } fun void rand_coefs2( CurveTable table, int n_breakpoints ) { // this function does not assign values stored in coefs correctly to // CurveTable.coefs(). Why? It also throws an error message. [-1, 0, 1 ] @=> int curvature[]; n_breakpoints*3 - 1 => n_breakpoints; float coefs[ n_breakpoints]; 0. => coefs[0]; 0. => coefs[1]; for( 2 => int i; i < n_breakpoints; i++ ) { curvature[ Std.rand2(0, 2)] => coefs[i++]; i/3 => coefs[i++]; Std.rand2f(0.,1.) => coefs[i]; } 0 => coefs[n_breakpoints-1]; coefs => table.coefs; <<<"\n", "CURVE 2:\n" >>>; <<<"\t index", " value", " curvature">>>; <<<"\t----------------------------------","\t">>>; for( 0 => int i; i < n_breakpoints-2; i++ ) <<<"\t", coefs[i++], coefs[i++], coefs[i]>>>; <<< "\t", coefs[n_breakpoints-2], coefs[n_breakpoints-1] >>>; <<<"\t----------------------------------","\t">>>; } CurveTable curve1; CurveTable curve2; 1024 => int size; <<< "\n*Assigning coefs via rand_coefs1()","\t">>>; rand_coefs1( curve1 ); 0 => float sum; for( 0 => int i; i < size; i++ ) { curve1.lookup(i) +=> sum; } if( sum > 0 ) <<<"Ok", "sum[i=0,N=1023] =", sum>>>; else <<< "Error:", "sum[i=0,N=1023] =", sum, ". Coefs were not assigned. All values are 0." >>>; <<< "\n*Assigning coefs via rand_coefs2()","\t">>>; rand_coefs2( curve2, 10 ); 0 => sum; for( 0 => int i; i < size; i++ ) { curve2.lookup(i) +=> sum; } if( sum > 0 ) <<<"Ok", "sum[i=0,N=1023] =", sum>>>; else <<< "Error:", "sum[i=0,N=1023] =", sum, ". Coefs were not assigned. All values are 0.\n">>>;

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A example that needs correction
by Martin Ahnelöv 19 Aug '07

19 Aug '07

Hi! I was investigating what I could use the spork-keyword for when I stumbled on this problem in the examples: The example fm3.ck is pretty wrong. It says that fm-synthesis is at sync 0 on SinOsc's, but that isn't true. sync 0 is sync frequency. fm2.ck does it right however. Experience the difference yourself by changing both fm2.ck and fm3.ck's c.freq-variable. Anyways, this is the result of my tries: http://hauntedhouse.wordpress.com/2007/08/18/ambientic-monotonic-pieceus/ I'll probably go on and work a little more with it. Gasten

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Re: [chuck-users] Lisa behaving strangely?
by Kassen 17 Aug '07

17 Aug '07

First of all, I seem to have inadvertedly send the message below to the dev-list which wasn't my intention. Oops. Secondly, sorry to reply to my own message and breach nettiquette but I found a second issue when trying to work around the one posted before. For some reason LiSa.duration() is write only. This is inconvenient when trying to work around this bug as it makes it impossible to go like this; l.playPos( l.duration() - samp); I can't realy see why duration would be write only while I can think of reasons to want to check the max duration of a buffer (aside from the posted bug). Could a readable version of .duration perhaps be considdered for a future update? Yours, Kas. On 8/8/07, Kassen <signal.automatique(a)gmail.com> wrote: > > Hi list, Hi Dan! > > > I have a slight issue with LiSa when she's supposed to play backwards. > Let's assume for a second we want to record a single piano note, then play > it back *once* in reverse; > ---------------------- > Rhodey r => LiSa l => dac; > > second => l.duration; > > 1 => l.record; > 1 => r.noteOn; > > second => now; > > 0 => l.record; > > 0 => l.loop; > second => l.playPos; > -1 => l.rate; > 1 => l.play; > > second => now; > --------------- > > The above looks entirely correct to me, however, it won't generate a > sound. for > > .999::second => l.playPos; > > it will work just fine and it will also work fine when .loop is turned on > but turning loop on for one-shot samples isn't always convenient. > > I believe this to be a bug, probably related to the way in which LiSa > determines when she is supposed to stop playing. When you, Dan, have a > moment, could you please look into this? > > Yours, > Kas. >

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one of the two sX.freq() in a same while doesn't seem to get changed
by 2g 10 Aug '07

10 Aug '07

today i learned about .5::second => dur T; T - (now % T) => now; and wanted to modify my isthisokay.ck to something more overtone sequencer oriented but nothing seemed to be working properly so comment outed a lot and went into the debug mode with the followings being chucked i can see things like s1 changed 34.747145 s2 changed 95.554650 s1 changed 56.208618 s2 changed 140.521544 s1 changed 32.703196 s2 changed 89.933788 s1 changed 45.988869 s2 changed 160.961041 --- get displayed but the sound itself doesn't seem to be doing this one of the two sinewave ... maybe s1.freq() seems to be playing the same long tone (freq never changing) and i don't seem to hear the rhythm pattern it should have created if am not wrong i think there is three sinewaves coming out isthisokay.ck: .5::second => dur T; T - (now % T) => now; 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; 27.5 * Math.pow(2.0,(3.0/12.0)) => float oilroot; 2 * oilroot => s2.freq; 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; } } //spork ~ ri(); //spork ~ ga(); while( true ) { Std.rand2(32, 64) * oilroot / 32.0 => s1.freq; <<<"s1 changed", s1.freq()>>>; //1000::ms => now; 7::T => now; s1.freq() * Std.rand2(8, 16) / 4.0 => s2.freq; <<<"s2 changed", s2.freq()>>>; //250::ms => now; 1::T => now; } -- 2g http://micro.ispretty.com

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