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

TXLF
by Brian Sorahan 24 Apr '13

24 Apr '13

Calling all Texas ChucKists! http://2013.texaslinuxfest.org/content/audio-synthesis-chuck

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LiSa => anything but dac?
by Joel Matthys 09 Apr '13

09 Apr '13

Hi all. I'm not able to get sound from LiSa unless it connects directly to the dac. This simple example gives me nothing but silence: Noise n => LiSa lisa => Chorus c => dac; // lisa => dac works 0.1 => n.gain; 2::second => lisa.duration; 1 => lisa.record; 2::second => now; 0 => lisa.record; 1 => lisa.play; 2::second => now; Is there something I'm overlooking here? Thanks, Joel

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Columbia University Composition/Production Workshop, 4/14/13
by Brad Garton 08 Apr '13

08 Apr '13

Hey chucksters -- For those of you in/around NYC this weekend, this might be of interest: ---------------------------- Composition/Production a workshop on the sound of music The Columbia University Computer Music Center is hosting a day-long workshop on issues arising from 'production': the impact of contemporary recording studio and digital-signal processing tools in crafting the sonic presentation of music. We will be especially focussing on the use of these tools, how they influence our musical creativity and the role recording technologies play in shaping the work we do. Towards that end, we have invited a group of musicians and researchers involved in music technology to help lead a community discussion of these issues. All are welcome to participate in this event. Sunday, April 14, 2013; 10:00 AM - 5:00 PM Computer Music Center, Columbia University Prentis Hall; 632 W. 125th Street, NY with: Ted Coffey, UVa Luke DuBois, NYU Tom Erbe, UCSD Brad Garton, CMC Darwin Grosse, Cycling '74 Terry Pender, CMC Todd Reynolds, MSM Gregory Taylor, Cycling '74 contact: garton(a)columbia.edu free and open to the public

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my first chuck program
by Rustom Mody 28 Mar '13

28 Mar '13

Ive just written a chuck program (my first!) to demo harmonics If there is some way I could write the code better, Id like to know. Also from the audio POV can I do better? Basically I want to show that as I change N from 1 upto 6 the pure sine wave moves from sounding very mathematical/electrical to sounding more musical Any ideas to make it more convincing? Code -------- 8 => int N; SinOsc s[N]; [.45,.3,.2,.1,.05,.03,.02,.01] @=> float gains[]; 440.0 => float freq; for (0 => int i; i < N;i++) { s[i] => dac; freq => s[i].freq; gains[i] => s[i].gain; 440.0 +=> freq; } 1.5::second => now;

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Re: [chuck-users] Synth for use with guitar hex pickup
by Julius Smith 24 Mar '13

24 Mar '13

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Synth for use with guitar hex pickup
by Stefan Blixt 24 Mar '13

24 Mar '13

This is pretty basic stuff, but it still worked well enough that I think it may be worth posting, for any ChucK addict with a hex pickup and hex/MIDI converter (yeah, maybe not that many) hasn't tried this yet. Also to anyone is making polyponic synths: include an omni mode that supports this kind of setup! So basically this is a simple polyphonic synth using a single BlitSaw for sound. It listen on six channels, treating each channel as its own mono synth, which suits the output from my Roland VG99 perfectly. /Stefan

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1. Re: Synth for use with guitar hex pickup (Stefan Blixt)
by Perry Cook 24 Mar '13

24 Mar '13

I don't know about Gossett, but Dex and I did this on our Cook-Morrill trumpet interface, and I think the CNMAT/Gibson/Zeta project did this as well. On ours, we fired a noisy attack on one MIDI channel as soon as we detected playing over a threshold. Then we waited a fixed time (like 100 ms) and collected pitch info from many sources (valve info, lip tension, and acoustic features from two mics). Then we fired a best- guess pitched noteon on a different channel, and updated that with bend messages. We sent a note off on the attack channel. There was no perceived latency, but there was occasional monkey business on the pitch update side. Prc Ref: http://quod.lib.umich.edu/cgi/p/pod/dod-idx/midi-control-and-performance-sy… Sent from my iPad :-) On Mar 24, 2013, at 9:00 AM, chuck-users-request(a)lists.cs.princeton.edu wrote:

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retrieving shred id when calling chuck from command line
by Szabolcs Horvát 15 Mar '13

15 Mar '13

Hello, I am a chuck novice, so please be gentle :-) (actually just started learning today) I would like to call chuck from another program and add/remove shreds, as well as control some parameters. Adding shreds is easy, just chuck + shed.ck, but to remove them I need the shred id. So the first question is, how can I retrieve the shred id when adding new shreds? I know that the listener process prints the shred id, but to parse the output of the listener, weed out errors, and catch the shred id only is very messy. Is there a better way? How does miniAudicle do this (since it has to do practically the same thing)? The other question is about how to control all shreds with global parameters. I found a way, but since I'm new to ChucK, I'm looking for some reassurance that this is the correct and the simplest way. I created a class like this: public class MyState { static int freq; } 500 => MyState.freq; Then I read/set the parameter MyState.freq from various shreds. Is this the correct way? Thank you for any help in advance, Szabolcs

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Funded PhD studentship at University of Brighton
by thor 15 Mar '13

15 Mar '13

Hi all This might be of interest to some members of this list: The doctoral college at the University of Brighton is offering PhD studentships for eight set projects starting next academic year. Full details can be found at: http://www.brighton.ac.uk/researchstudy/2013studentships/arts-and-humanitie… Feel free to contact me off list on my Brighton addresse if you have any questions. Best Thor Magnusson

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escaped backslash in string
by Joel Matthys 09 Mar '13

09 Mar '13

Hi all. I'm working on a project that requires me to send a backslash character via OSC. This construct is typical of C family languages: "\\hello" -------> prints: \hello but ChucK doesn't seem to let me escape a backslash. Instead I get [unrecognized escape sequence: '\h']. Same when I try to use octal: "\134hello" Setting aside the crazy fact that I have to send a backslash over OSC (it's for Guido music notation in InScore), does anyone know how to get a backslash in a ChucK string? Thanks, Joel

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