March 2008 - chuck-users - lists.cs.princeton.edu

typecasting
by Jeremy Hunt 10 Mar '08

10 Mar '08

Hi all, is there a way to typecast dur such that I could do something like this? now => float t; Or is there a work around? Thanks in advance. cheers, -jrmy

3 2

Bay Area Computer Music Technology Group, Thursday March 6th @ Songbird
by Noah Thorp 03 Mar '08

03 Mar '08

The Bay Area Computer Music Technology Group Thursday, March 6th, 7:30 - 9:30pm @ Songbird (http://www.songbirdnest.com/) 585 Howard Street, Second Floor, SF RSVP Here: http://electronicmusic.meetup.com/152/calendar/6921804/ Thanks to Songbird for hosting our event this month and for providing refreshments! Please RSVP here so we know you are coming: http://electronicmusic.meetup.com/152/calendar/6921804/ Our presentations this month will be: - Andy Schmeder (UC Berkeley CNMAT) on the Open Sound Control (OSC) protocol. Other CNMAT OSC contributors will be in attendance to contribute to the talk and field various questions. http://opensoundcontrol.org/ - Jonas Norberg will present on his Open Source analogue synth VST plugin - Helix. Learn more and hear some great samples at: http://www.audjoo.com/Helix.html - Peter Nyober on the Livid instruments OHM controller: http://www.lividinstruments.com/hardware_ohm.php - Presentation by The Pioneer's of the Inevitable on extending their Mozilla based Songbird music media platform: http://www.songbirdnest.com/ - A lightning talk by you? (5 minute presentation - come with your laptop) OSC Presentation Since it's introduction in 1997 by CNMAT researchers Matt Wright and Adrian Freed, the Open Sound Control (OSC) protocol has been successfully integrated into dozens of hardware and software products, and used in thousands of performances and installations. OSC goes beyond MIDI by addressing needs specific to musical performance with new electronic instruments such as high-bandwidth connectivity, precise temporal semantics and temporal regularization, extensibility and rich type support, human readability and state-free operation. The OSC protocol itself has a simple structure making it easy to integrate into new applications, but an appreciation for the underlying design principles is necessary to leverage its full capabilities. This talk will cover the basics of using and programming OSC with demonstrations of hardware and software implementations. We will then dive into the details and discuss best-practices for creating OSC implementations that relate to issues in musical control, with an emphasis on temporal semantics and related algorithms. The conclusion will include an overview of recent research and anticipated future developments. Additional talks by Jonas, Peter, and Songbird should be quite interesting as well although there is less verbiage for them at this time. All the best, Noah Thorp Bay Area Computer Music Technology Group Organizer BIOS Andrew (Andy) Water Schmeder was born on November 26 1978 at home in Point Richmond, California. He received a BA in Mathematics from UC Berkeley (2002) and now works as a research programmer at the Center for New Music and Audio Technologies, UC Berkeley. His favorite programming language is Mathematica, and his favorite fruit is the avocado. His heros are Spiderman and Marvin the Depressed Android. Songbird is developed by a band of experienced, dedicated software developers and designers called the Pioneers of the Inevitable. Their previous hatchlings include Winamp and the Yahoo! Music Engine. They support the Mozilla Foundation's mission to preserve innovation and choice on the Internet. Their mission is to incubate Songbird, the first Web player, to catalyze and champion a diverse, open Media Web. Peter Nyober is Director of Software at Livid and manages all software programming, design, and production. After years of audio manipulation, Peter started to dive into the world of real-time video manipulation in 1999 when he designed a four screen video sampler for San Francisco's Recombinant Media Labs to be used in that year's Ars Electronica performance showcase. He has continued to create real-time interactive software for audio and video manipulation, and has independently produced a number of programs prior to working with Livid, including of the first hybrid DJ/VJ software called Yowstar. He has also assisted in a number of custom softwares, installations, and performances for a number of artists, including Mix Master Mike, Ikue Mori, Thomas Dolby, DJ Sasha, and Bob Ostertag. He graduated from UC Santa Cruz with a degree in Applied Mathematics and has continued to apply them in code, performance, and daily life. Jonas Norberg was born in Hudiksvall, Sweden in 1977. After studying music in Highschool he switched to Computing Science for University. In the days (and some nights) he works as a software engineer at Lucasarts. In his free time he develops a free software synthesizer and takes weekly voice lessons.

1 0

extending Event and the order of files
by Kassen 03 Mar '08

03 Mar '08

Fellow ChucKists. This has a issue (class 'Trigger' has no member 'broadcast'); =====================- Trigger trig; trig.broadcast(); class Trigger extends Event { int target; } ====================== Yet this is fine; =================- class Trigger extends Event { int target; } Trigger trig; trig.broadcast(); ================= This is quite odd. In general defining classes at the bottom of the file is ok these days, the problem seems to be in extending Event. I believe this to be wrong and will add it to the WiKi's list of bugs. Yours, Kas.

2 1

delay times of STK delays seem to be 1 sample off?
by volker böhm 03 Mar '08

03 Mar '08

hi, i was running some simple tests to hear the difference between allpass vs linear interpolating delay lines when i noticed that there is obviously a little bug in how the delay time is calculated in the delay UGens from STK. the following example feeds an impulse into a DelayA with high feedback and compares the tuning to a TriOsc. can't i trust my ears or is the tuning only correct if i add 1 to deltime before calculating the frequency for TriOsc? thanks, volker. Impulse imp => Gain out => dac; out => DelayA delay => out; TriOsc tri => dac; // test oscillator 44100.0 => float sr; // sampling rate // delay time in samples 150.5 => float deltime; deltime::samp => delay.delay; // calc tri freq from delay time // have to add 1 to deltime to get correct tuning sr / (deltime) => tri.freq; // set feedback level 0.999 => delay.gain; 0.3 => tri.gain; while(true) { 1 => imp.next; 6::second => now; }

3 9

Re: [chuck-users] is there a way to bundle mini audicle with different version of chuck?
by pibsid＠suomi24.fi 03 Mar '08

03 Mar '08

According to http://audicle.cs.princeton.edu/mini/release/README.linux It would indeed be possible to compile miniAudicle with a different source for ChucK. quote: Tips ---- miniAudicle binds directly to the ChucK source code to provide an internal ChucK compiler and virtual machine. Thus, to compile the miniAudicle requires a copy of the ChucK source code distribution. miniAudicle includes the latest stable release of the ChucK source code in its own distribution, and provides a symlink to this ChucK source called 'chuck'. To bind to a different version of the ChucK source (version 1.2.0.5 or greater), unlink 'chuck' and recreate it, linking to the root directory of the desired source distribution (i. e., the directory enclosing src/, not src/ itself). >----Alkuperäinen viesti---- >Lähettäjä: vboehm(a)gmx.ch >Päivämäärä: 01.03.2008 19:08 >Vastaanottaja: "ChucK Users Mailing List"<chuck-users(a)lists.cs. princeton.edu> >Aihe: [chuck-users] is there a way to bundle mini audicle with different version of chuck? > >sorry if this has come up before, but a quick search didn't reveal >anything useful. >mini audicle comes with a pre built version of chuck. >right now i am playing around with chuck's source code and compiling >different versions. >is there an easy way to tell mini audicle what version of chuck to >use instead of the one which is included? > >thanks, >volker. > >_______________________________________________ >chuck-users mailing list >chuck-users(a)lists.cs.princeton.edu >https://lists.cs.princeton.edu/mailman/listinfo/chuck-users >

4 3

is there a way to bundle mini audicle with different version of chuck?
by volker böhm 01 Mar '08

01 Mar '08

sorry if this has come up before, but a quick search didn't reveal anything useful. mini audicle comes with a pre built version of chuck. right now i am playing around with chuck's source code and compiling different versions. is there an easy way to tell mini audicle what version of chuck to use instead of the one which is included? thanks, volker.

2 1