June 2006 - chuck-users - lists.cs.princeton.edu

MidiOut
by Ollie Glass 12 Jun '06

12 Jun '06

Is there any documentation available for the MidiOut object? Thanks, Ollie

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Question on Shred Scheduling
by Mike McGonagle 12 Jun '06

12 Jun '06

I am working on a complete rewrite of my Masking package (the original was too bulky and dependant on creating hundreds of shreds), and was wondering just how something is scheduled in ChucK. Basically, I am trying to create a single shred that handles the updating of various parameters (as opposed to the original which had a shred for each parameter), and in doing so, I would like to create a "locking" mechanism around an array used to control which parameters get updated, and when. On one shred, there is the code that controlls the updating of parameters, this shred runs for the life of the program (or some portion of). On the second shred (most likely the main shred), the array containing the references to the parameters to be updated needs to be locked to prevent having a new reference added while the first shred is actually updating the parameters. (Does this make sense?) So, what I would like to know is how the following code would execute. now + 0::ms => now; Would this push the execution of the code to follow to the end of the current time slice? Or is this functionality undefined, and would it execute these shreds in an arbitrary fashion? In a nut shell, this is the code from the updating shred that locks the array... (this is embedded in an object) false => int locked; false => int keepGoing; MController @ controllers[]; // this gets initialized to match the number of controlled parameters fun void helper(....) { true => keepGoing; while(keepGoing) { while(locked) { now + 0::ms => now; } true => locked; for(0 => int i; i < controllers.cap(); i++) { if (controllers[i] != null) { <<< "do something with this controller", "" >>>; } } false => locked; } } The variable 'locked' controlls the access to the 'for' loop, and the variable 'keepGoing' controlls the outer loop. 'keepGoing' is set to true at the top of this code, but will be set to false by another shred to force the 'helper' function to exit as needed. The array 'controllers' is accessed by both this shred, as well as the main shred to add -- Help the Environment, Plant a Bush back in Texas!

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hail to all!
by biotechisgodzilla.wifebeater 10 Jun '06

10 Jun '06

Greetings to everyone i've just subscribe this list and wish to scream at u ... OMFG IT'S YEARS THAT I'M LOOKING TO A SOFTWARE LIKE THAT!!!!! i reach that project because it's a dependancy of that tool: http://www.blackholeprojector.com/index.html (Breakage) [which i still have not tested] {now i'm too busy with playing with chuck} which was notified today on freshmeat i've just build the binary of crunch, run some example and read some docs on the site i'm definitely already in love with this piece of art tnx to all developers .mike p.s.: running on debian sarge on an AMD laptop @ 800Mhz with --bufsize2048, works like a charm with no glitches

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Re: [chuck-users] AI drum machine
by Ollie Glass 09 Jun '06

09 Jun '06

> Wow - that looks REALLY interesting! Thank you :-) > I managed to get it up and running on my (Windows) PC - but I had > to change the chuck file (not the midi one) so that the default > samples were loaded. It was looking in the 'data' folder rather > than 'samples' - also the closed hat and open hat are ch.wav and > oh.wav. Thanks for these comments, I've fixed these bugs in the new release. > Would it be possible to add note length at some point? Although > this is probably moving away from the drum machine approach. At the moment the samples play for their 'natural' length. I can see how note length could be done if the sequence sent MIDI out events but not with samples. How would you do this? > > Can't wait to try it out with more channels and my own samples. > > Thanks a tonne! > > rikrak > >> On 6/8/06, Ollie Glass <ollieglaskovik(a)gmail.com> wrote: >> I've released an artificially intelligent drum machine using ChucK at >> www.blackholeprojector.com >> >> Hope you enjoy it. The two scripts for the step sequencer could be >> useful to people doing related things. >> >> Thanks to everyone who made ChucK, answered my questions on this list >> and made my app possible! >> >> Ollie >> _______________________________________________ >> chuck-users mailing list >> chuck-users(a)lists.cs.princeton.edu >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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What about "delayp"
by Jim Hinds 08 Jun '06

08 Jun '06

I'm looking at the documentation for the unit generator 'delayp' Too cryptic for me. The source code isn't very helpful either. And the delayp.ck example prog seems to have gone missing. Can anyone enlighten me about the adjustable write window and what that is supposed to do? Jim Hinds jahbini(a)jahbini.org http://www.celarien.com/ http://www.jahbini.info/

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AI drum machine
by Ollie Glass 08 Jun '06

08 Jun '06

I've released an artificially intelligent drum machine using ChucK at www.blackholeprojector.com Hope you enjoy it. The two scripts for the step sequencer could be useful to people doing related things. Thanks to everyone who made ChucK, answered my questions on this list and made my app possible! Ollie

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setenv?
by Kassen 01 Jun '06

01 Jun '06

Hi list, Is there a known issue with std.setenv() ? For me on XP sp1 std.setenv("foo", "bar"); Returns a zero and doesn't actually set anything. What I want to acomplish is the following; I want to have one shred that calls in a set of other shreds that all sync in the style of the otf examples but I'd like to set a environment variable that tells them what our bpm will be. Also; do I understand correctly that the only way of turning a string into a int or float is by abusing the acii numbers? Even if I happen to know the string is a number? As I type this I just realised it might be a lot more practical to stop postponing reading up on global classes, still it looks like std.setenv() is malfuctioning. Yours, kas.

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