February 2011 - chuck-users - lists.cs.princeton.edu

Scale & diatonic
by Hans Aberg 12 Oct '11

12 Oct '11

I have made a program, scale.ck, that admits one to work with scales, including tuning stretch, céleste tremulant, retune them, and then save to a file, with a line of code that can be pasted back into the source, available at next program startup. Scale tunings can be put into tuning banks, and otherwise defined by your favorite method. Details in the file. I have also updated my program for diatonic tuning systems, diatonic.ck. Just a few changes: adding some common tunings, fixing typos. The files are available here: http://www.math.su.se/~haberg/tuning_systems/ Hans

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clearing a delay line
by Casper Schipper 14 Mar '11

14 Mar '11

I wondered if there is any method to clear the internal buffer of a Delay ugen (since I did find such a function in the STK-kit). cheers, Casper

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Machine.add/ .remove
by Timothy Leonido 22 Feb '11

22 Feb '11

Would someone offer a good patch example using Machine.add, .remove, .replace? I am following the manual, yet receiving "in declaration" errors— I'm confused. Thank you, Tim

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Re: [chuck-users] float arguments from command line
by Perry Cook 19 Feb '11

19 Feb '11

Obviously what I posted works, but the extra cast isn't necessary. So all that's really needed is: Std.atof(me.arg(2)) => float MAX_TIME; PRC

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Re: [chuck-users] float arguments form command line
by Perry Cook 18 Feb '11

18 Feb '11

Wolfgang, args come in as strings, so convert using: Std.atof(me.arg(2)) $ float => float MAX_TIME;

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ChucK LiveCoding and Git
by Scott Hewitt 18 Feb '11

18 Feb '11

hi, Finally had time to implement an idea i had been looking at of using git versioning to track my actions while live coding in chuck. Have placed the versioning at https://github.com/witt0191/Chuck-Live-Coding-Record And have a blog post detailing use http://www.ablelemon.co.uk/comments.php?y=11&m=02&entry=entry110218-122224 Wonder if anyone would be interested is trying some sort of jam using the git repository as a place to exchange code? Scott

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Using biquad...
by Wolfgang Gil 18 Feb '11

18 Feb '11

Hey guys i'm working on a sampler that uses a simple equation system to determine parameters of reverb, volume and pitch filtering. The goal is to emulate 'depth' using the idea that if a sound's source moves away from our ears, we will perceive it as quieter and more diffused, with its high-pitch content less present. Motivated by this, I started to read about the biquad ugen, but i haven't figured out how to deal with its coefficients so I can make something interesting out of it. My question is, how can i make a high cut filter that gradually reduces the high-pitched content of the sound signal's spectrum, based on an input of 0-100? (0 = no filtering, 100 = no high-pitch content) thanks!

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float arguments form command line
by Wolfgang Gil 17 Feb '11

17 Feb '11

Hey again! does anybody knows how to get float arguments from the command line window? I tried: if( me.args() ) //0: filename,1: min_time,2: max_time { me.arg(0) => string filename; me.arg(1) $ float => float MIN_TIME; me.arg(2) $ float => float MAX_TIME; } but I'm getting "line(4): invalid cast to 'float' from 'string'"

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ChucK emacs mode
by Scott Hewitt 16 Feb '11

16 Feb '11

hi, Just wondering if it is possible to get the vm status, especially how many shreds are running, when running ChucK from within the emacs mode? Scott

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Fibonacci/φ controlled experiment.
by Anthony Bowyer-Lowe 14 Feb '11

14 Feb '11

I knocked together a quick sonic experiment in Chuck last night that uses the Fibonacci sequence and φ to determine each note's pitch, duration, and vibrato settings. I haven't done much with Chuck in quite a while but was highly pleased how easily the experiment converged (about 15 minutes all told). You can listen to the output here if you're interested: http://lowbroweye.com/post/3284637463/fibonacci-fiddlings And here's the code: http://cdn.lowbroweye.com/misc/fibonacci.ck A.

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