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

feature requests: included directories and .chuckrc
by Graham Percival 20 Oct '05

20 Oct '05

Since you guys are implementing neat little features so quickly, here's another -- the ability to include directories to search for patches. ie $ chuck -I ~/chucklibs/ foo.ck rec.ck This searches the current dir for foo.ck and rec.ck; if it doesn't find it, then it searches in ~/chucklibs/ This is much easier than doing $ chuck foo.ck ~/src/chuck-1.2.0.2/examples/basic/rec.ck It would also be great if chuck could get configuration details from ~/.chuckrc (such as sample rate and included directories :) Cheers, - Graham

1 0

ChucKML
by Nelson Ferraz 19 Oct '05

19 Oct '05

Hi! I wanted to use ChucK to play some wave files in sequence, so I wrote a small script to read a XML file and generate the ChucK code for me. I called it "ChucKML". Here's a sample ChucKML file: <chuckml> <wave src="wav/snd1.wav" repeat_every="3::second"/> <wave src="wav/snd2.wav" start_after="12::second" repeat_every="6::second"/> <wave src="wav/snd3.wav" start_after="36::second" repeat_every="12::second"/> </chuckml> Sample usage: $ chuckml sample.xml > sample.ck $ chuck sample.ck (The first command generates a .ck file, and the second command plays it.) This is a simple prototype, but I thought someone will find it useful. Perhaps it could be used to introduce ChucK to anyone who can write HTML? Nelson -- Nelson Ferraz GNU BIS - www.gnubis.com.br

1 0

feature request: including files
by Graham Percival 19 Oct '05

19 Oct '05

It would be great if ChucK could include other .ck files. I know you can do machine.add("foo.ck"), but it would be great if we could do it with non-shreds as well. For example, I could have a bunch of functions which I could then include in other projects. You can't machine.add a fun float changevalue ( float foo ) { ... return bar; } Technically speaking, whatever.include("foo.ck"); would simply insert the contents of foo.ck into the original file at the place where whatever.include() was called. Cheers, - Graham

3 2

Heartbeat
by Nelson Ferraz 19 Oct '05

19 Oct '05

I was wondering if it would be possible to use ChucK to script wave files, and I found the answer in one of the "towers of annoy" example -- yes, it's possible. Here's my first ChucK program, which I called "hello_wav.ck": // the sound samples sndbuf my_sample; // load files "wav/Heartbeat Bass.wav" => my_sample.read; // set gain .5 => my_sample.gain; // play my_sample => dac; 3::second => now; It worked just fine. Now, I'd like to play the heartbeat sound "ad infinitum"... I tried this, but it doesn't work: while (1) { my_sample => dac; 3::second => now; } Any ideas?

2 2

audicle
by James Baker 19 Oct '05

19 Oct '05

whats the current status of this project? i understand the 'read when its ready' motto, but how about some info. sorry to hassle but im eager to try it out ;) oh and the 1.2.0.1 release of chuck is very neat. cheers, james

4 6

Help with arrays?
by Vassili Slessarenko 18 Oct '05

18 Oct '05

Nobody really uses jankyteeth/soup anymore. SO i figured I'd ask here: I can still not quite figure out how to do random choice wihtout replacement... I seem to have gotten one of the ways of doing it, but need help to make it not crash the spork. Here is the actual code. After all the effects it tries to randomly select pieces out of a sound file and then plays them at random speeds, etc. so you get a very weird reconstructed sound... feed it any sound file that the soundbuf class understands. The main part I'm having trouble with is the main while(true) loop. Could someone help me out to make this thing work without crashing chuck? click here: http://urbanplexus.net/reconstructor.ck

2 1

int/float conversion oddity (48.0000 = 47)
by Graham Percival 11 Oct '05

11 Oct '05

std.mtof(std.ftom(48)) => float foo; <<< foo >>>; foo $ int => int bar; <<< bar >>>; std.mtof(std.ftom(48)) $ int => int baz; <<< baz >>>; On OSX 10.3.9, using chuck 1.2.0.1, this results in: 48.000000 :(float) 47 :(int) 47 :(int) Cheers, - Graham

2 1

system calls
by Graham Percival 06 Oct '05

06 Oct '05

Greetings, ChucK is awesome! I only discovered it slightly a week ago, and I'm a total convert now. I can write programs much more elegantly in chuck than I ever could in pd, and it is _such_ a pleasure to do everything in text. Dev team: you guys rock! I'm working on a chuck->lilypond[1] translator (well, a chuck program that generates lilypond code, gets lilypond to compile it, and then displays the sheet music). I was talking about this with Adam Tindale[2], and he said that ChucK could do system calls. In the source code for chuck, I saw a reference to "std.ck", which is supposed to demonstrate this, but evidently this example file was removed before 1.2 came out. Could anybody shed more light on this? [1] GNU/LilyPond is a notation program that generates beautiful music from (text) input files; I'm their Documentation Editor. http://lilypond.org [2] I'm a music undergraduate student at UVic; Adam is the TA for one of my courses. Ideally I'd like to be able to output strings to a file and run shell commands (ie "lilypond foo.ly" and "open foo.pdf" -- maybe also "ls foo.pdf" to check if lilypond has finished). I could do this in pd via the textedit and "shell" external object, but I'd much much rather use chuck. :) Cheers, - Graham Percival

2 2

No stereo WvOut?
by Tyler Gillies 04 Oct '05

04 Oct '05

ChucKas, I'm running 1.2.0.2-pre and trying to write to stereo WAV file like this: dac => WvOut w => blackhole; "foo.wav" => w.wavFilename; However, foo.wav gets written as a mono file. What to do? Thanks, Tyler Gillies

4 5

compiling chuck for Linux
by Kassen 04 Oct '05

04 Oct '05

ChucKers, I seem to be having a problem trying to compile ChucK for Linux (DeMuDi). I'm fairly certain I installed GCC and G++ correctly since the required Libsndfile library seemed to compile without any obvious complaints. However, when I type "make linux-jack" I get a reply that the command "bison" is not found. I'm not sure what to do about this or where to find "bison". I'm sure this is very stupid question but I'm a bit of Linux n00b. I tried looking in the Faq and so on but no help there. Any pointers would be greatly apreceated. Yours, Kas.

1 1