April 2012 - chuck-users - lists.cs.princeton.edu

ChucK on the web: NodeJS / HTML5
by Matt Diamond 20 Apr '12

20 Apr '12

Has anyone had any experience with using ChucK in a web context? For example, two things I'd be interested in as a web developer: 1) streaming ChucK audio output from a NodeJS server to the browser 2) a javascript client-side ChucK implementation utilizing the Web Audio API Has there been any work on either of these? Matt Diamond

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esp.beat - cybernetic orchestra CD
by David Ogborn 19 Apr '12

19 Apr '12

Hello friends, The debut album "esp.beat" from the Cybernetic Orchestra here at McMaster was released in a special CD release event ("Resonant") at the Factory Media Arts Centre during Hamilton's monthly James Street N art crawl last Friday (April 13 2012). We distributed just over 200 CDs to an enthusiastic audience of just over 300 people - it was quite a blast! I'm sure we'll do it again soon... The entire album is available online via soundcloud - here's the link: http://soundcloud.com/cyberneticorchestra/sets/esp-beat The album has been made available under a Creative Commons Attribution Non-commercial Share-a-like license (CC BY-NC-SA). How is the orchestra performing this music you may ask? A lot of it is live coding using Chuck and the miniAudicle. Some of it is some MaxMSP instruments created by orchestra members. Behind the scenes we are using rough prototypes of the espTools software (forthcoming) for communication and beat sharing. We'll be posting some more improv recordings (including some from the CD release party) shortly, and some video footage collected over the past 14 months throughout April and May. But in the meantime we hope you enjoy this acousmatic edition of our music! Yours truly, David, on behalf of the Cybernetic Orchestra ------------------------------------------------------------------- Dr. David Ogborn, Assistant Professor Communication Studies & Multimedia Director, Cybernetic Orchestra & ESP Studio McMaster University, Hamilton, Canada ogbornd --at-- mcmaster.ca http://davidogborn.net http://twitter.com/ogbornd http://esp.mcmaster.ca (Cybernetic Orchestra) 1-905-525-9140 ext 27603

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Gedit Plugin for ChucK?
by [chriswicks] 18 Apr '12

18 Apr '12

Does anyone know of a plugin for gedit that contains syntax/keyword highlighting/etc. for editing ChucK programs? I really want to like the miniAudicle, and it has a lot of potential, but I have issues saving files if I instantiate the program via the terminal. Issues meaning that it won't save any changes that I make to a file if I instantiate miniAudicle from the terminal, at least on the Linux version (Ubuntu 32-bit, miniAudicle built from most recent source). Thanks for any info!

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different classes and files talking to each other
by henrique matias 18 Apr '12

18 Apr '12

Hello folks, hope everything is great over there! ( : Am new to chuck, needless to say am impressed! Am a bit confused how to share and control different classes and files from a central "machine". The first idea was to create a static Event var and put every class listening to this event, but unfortunately we still can't instantiate non-native objects as static. Would someone please point me to some basic structure/example? Thanks a lot! Happy chucking!

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SndBuf problem
by giulio 16 Apr '12

16 Apr '12

Hello, I'm searching information about SndBuff and WvOut (and WvIn?) In the same project I want to record and play sounds but I have some problems... To explain: adc => Gain g => WvOut wOut => blackhole; .5 => g.gain; SndBuf buf => dac; "/.../blablabla.wav" => string filename; filename => wOut.wavFilename; 5::second => now; wOut.closeFile; //5::second => now; //filename => buf.read; //5::second => now; me.exit(); ...No problem... adc => Gain g => WvOut wOut => blackhole; .5 => g.gain; SndBuf buf => dac; "/.../blablabla.wav" => string filename; //filename => wOut.wavFilename; //5::second => now; //wOut.closeFile; //5::second => now; filename => buf.read; 5::second => now; me.exit(); ...No problem... But adc => Gain g => WvOut wOut => blackhole; .5 => g.gain; SndBuf buf => dac; "/.../blablabla.wav" => string filename; filename => wOut.wavFilename; 5::second => now; wOut.closeFile; 5::second => now; filename => buf.read; 5::second => now; me.exit(); ...Return: chuck: ugen_xxx.cpp:2637: void sndbuf_ctrl_read(Chuck_Object*, void*, Chuck_DL_Return*, Chuck_VM_Shred*): Assertion `d->fd == __null' failed. Why? Thanck you, Giulio.

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Beginner question about audio artifacts
by Chris Wicks 15 Apr '12

15 Apr '12

Hello! I'm relatively new to programming and to ChucK in particular. I have an issue in which, whenever a new shred is introduced to the virtual machine (chuck --loop running in a terminal....also happens on miniAudicle) I get significant artifacts. I've tried using the command line option for increasing buffer size to no avail. I'm running ChucK on Windows 7 Pro 64-bit. Audio drivers are Realtek (may not be the latest version). I get the same issue on mu laptop running Windows 7 Home Premium 64-bit. Do I need to bite the bullet and shell out for a dedicated sound card? Could it potentially be a driver issue? I'm at a bit of a loss. Thanks for any help!

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Re: [chuck-users] Most recent Chuck for Lion?
by Anthony Bowyer-Lowe 09 Apr '12

09 Apr '12

> > I've been running Chuck on a MacPro with a Cinema Display, and I notice > that the audio device switching isn't handled well by either the > hardware/OS, or other audio apps. Often I have to diddle around with the > Sound Preferences output to get Amadeus or Reaper to play to my headphones, > or the display audio, instead of the internal speaker. So perhaps this has > something to do with it. > I can't promise this will help, but I'm a fan of running Rogue Amoeba's free Sound Source app on OS X which makes selecting the machine's audio output really quick and simple: http://rogueamoeba.com/freebies/ (bottom of page) It overrides the Mac's automatic device switching so just may be a fix. I don't know if it works on Lion - it's a bit old - but it functions great on Snow Leopard. Anthony.

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