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

Compiling for Gumstix
by David Michael 24 Dec '06

24 Dec '06

Hello I am in the process of attempting a compilation of Chuck for the Gumstix platform (Linux). My question is this: If I am able to successfully cross-compile Chuck, will I also need to have any of Chuck's dependencies on the target platform (or are they just used in the compilation process)? The answer might be obvious, just not yet to me. Thanks, David

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error on linux laptop
by altern 20 Dec '06

20 Dec '06

hi i am getting this error when running some of the examples on my thinkpad x24, with the built in sound card. I am using Debian unstable with fluxbox. I compiled ChucK from source couple of weeks ago. [chuck]: (via rtaudio): no devices found for given stream parameters: ... RtApiAlsa: pcm device (hw:I82801CAICH3,0) won't open: Device or resource busy. ... RtApiAlsa: pcm device (hw:I82801CAICH3,1) won't open: No such file or directory. [chuck]: cannot initialize audio device (try using --silent/-s) any ideas? I am not running any other sound device as far as i can see but i dont know much on audio and linux. thanks enrike

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Re: [chuck-users] chuck-users Digest, Vol 17, Issue 11
by kijjasak triyanond 18 Dec '06

18 Dec '06

Oh.. yes yes & yes! this is the OOP idea i'm not familiar with. so this is how it works.. wow. new item.. and new @ variable.. wow. i was always trying to do something like this with other stuffs. but i didn't use @ for a new pointer variable.. i had no idea hahah.. thanks Scott. this is so clear. and it gives me a lot of new ideas & a breakthrough for more things i can do in ChucK! - kij > Well, or naturally you can write your own stack. Here's a simple > integer stack: > > class IntStack > { > class Item > { > 0 => int value; > Item @ below; > } > > new Item @=> Item @ bottom; > bottom @=> Item top; > > fun void push(int value) > { > new Item @=> Item @ item; > value => item.value; > top @=> item.below; > item @=> top; > } > > fun int pop() > { > top.value => int value; > > if(top != bottom) > { > top.below @=> top; > } > > return value; > } > > fun int isEmpty() > { > return top == bottom; > } > } > > Then the following code: > > IntStack stack; > > stack.push(1); > stack.push(2); > stack.push(3); > stack.push(4); > stack.push(5); > > while(!stack.isEmpty()) > { > <<< stack.pop() >>>; > } > > Produces: > > 5 :(int) > 4 :(int) > 3 :(int) > 2 :(int) > 1 :(int) > > -Scott

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generating a stack
by kijjasak triyanond 12 Dec '06

12 Dec '06

hello all, great to see you all here so active. it's my first time writing in here. is there a way to create a Stack? or still no? I might wanna hold some sets of values for later use on a stack-style system but if there are still no such thing in ChucK (and probably, not suitable for its programming style), i might consider using an Array (with limited size) for the task instead. thanks & take care all. - kij

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Writing to text files? Visualization?
by David Michael 12 Dec '06

12 Dec '06

Hello list Can someone please tell me if it is possible to write text files, or any other files for that matter that are not audio files? I would like to store a sequence of values that im generating someplace outside of ChucK so I can graph it or log it. Any ideas? Thanks David

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strings via osc and more..
by tazumi 11 Dec '06

11 Dec '06

Hi List, hello to everybody.. i am new to this list.. i have got a question about sending strings with the osc class.. ist this possible? The manual says that the osc object has 2 member functions (addInt / addFloat).. so is there a way to send (or revieve) other data types? another question is about System Information from within chuck.. are there functions that for example return information about all available midi ports - as a list, an array or something similar? (like the VM option --probe) Currently i am working on a kind of chuck user interface.. i want the UI and chuck to communicate over OSC - so a way to get Information about the current Environment (from within chuck and send them to the UI) would really be great... thanks -- tazumi

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User Action Capturing
by jason burnside 07 Dec '06

07 Dec '06

Hey Ge, Let's say I'm using a program like joy-noise.ck (under chuck/examples/hid), and I want to capture the input from the controller for later use, or looping, or whatever. Is there a way to do this in Chuck? If not, can Chuck write control data (midi note integers, joystick positions, etc.) to a .txt file, then read from the file later? Also, I went to your seminar at Tulane. It was very good. Thanks, Steve --------------------------------- Want to start your own business? Learn how on Yahoo! Small Business.

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SndBuf functions - valueAt ??
by Laurie Hollander 04 Dec '06

04 Dec '06

I see the following functions in the Chuck manual, for SndBuf: .read - (string, WRITE only) - loads file for reading .chunks - (int, READ/WRITE) - size of chunk (# of frames) to read on-demand; 0 implies entire file, default; must be set before reading to take effect. .write - (string, WRITE only) - loads a file for writing (or not) .pos - (int, READ/WRITE) - set position (0 <p <.samples) .valueAt - (int, READ only) - returns the value at sample index .loop - (int, READ/WRITE) - toggle looping .interp - (int, READ/WRITE) - set interpolation (0=drop, 1=linear, 2=sinc) .rate - (float, READ/WRITE) - playback rate (relative to the file's natural speed) .play - (float, READ/WRITE) - play (same as rate) .freq - (float, READ/WRITE) - playback rate (file loops/second) .phase - (float, READ/WRITE) - set phase position (0-1) .channel - (int, READ/WRITE) - select channel (0 <x <.channels) .phaseOffset - (float, READ/WRITE) - set a phase offset .samples - (int, READ only) - fetch number of samples .length - (float, READ only) - fetch length in seconds .channels - (int, READ only) - fetch number of channels I am now trying to use the .valueAt function, but am getting errors. The program is something like.... SndBuf a ; ...etc I read a soundfile into sndbuf a and play it - that much works.... int samp_pos ; float samp_val ; for (0 => int j ; j < 10000 ; j++) { j => a.pos ; j => samp_pos ; a.valueAt() => samp_val ; // <<<a.pos() >>> ; // <<< samp_pos, samp_val >>> ; } Here's the error message: [trigplay2calc.ck]:line(151): arguments type(s) do not match: [trigplay2calc.ck]:line(151): ... for function 'SndBuf.valueAt(...)' ... [trigplay2calc.ck]:line(151): ...(please check the argument types) When I change the type of samp_val to int, I get the same message. When I leave out the parentheses, it complains that it's a function. Does the .valueAt function work? Thank you! -Laurie

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figuring out what causes a crash
by Atte André Jensen 02 Dec '06

02 Dec '06

Hi While playing with my setup tonight chuck crashed (seg fault) on me a couple of times, and I'm very interested in finding out why. Instead of crawling through my 18000+ lines of chuck code I'd like chuck to be a little more outspoken when it crashes. Now it just gives me the line where I call chuck from a bash startup script. I tried the verbose setting, and although I haven't made it crash yet, I don't really need all the debugging info when running, so I suspect I'm looking for something slightly different. Is there anything I can do (a hack in the source, a switch I should try, any suggestions) to investigate a bit further? BTW: I'm pretty sure it's my code and not chuck that's to blame, although one must never say never:-) -- peace, love & harmony Atte http://www.atte.dk | quintet: http://www.anagrammer.dk | compositions: http://www.atte.dk/compositions

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miniAudicle problems
by Atte André Jensen 01 Dec '06

01 Dec '06

Hi Just installed miniAudicle 0.1.3.6 (and the included chuck) on my debian/unstable laptop. Something seems wrong with miniAudicle, since some examples (just tried a few under basic) make no sound. Here's what I tried that makes sound in both chuck and miniAudicle: fm2, fm3, curly++ And the following only make sound in chuck: blit, moe, moe++, chirp, chirp2, larry, larry++ However the ones actually sounding in miniAudicle, only sound in one channel (left)... Both miniAudicle and chuck are compiled using make linux-alsa. Any idea what could be the cause of this? Did I miss something? -- peace, love & harmony Atte http://www.atte.dk | quintet: http://www.anagrammer.dk | compositions: http://www.atte.dk/composition

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