August 2009 - chuck-users - lists.cs.princeton.edu

Re: [chuck-users] One thing that ChucK *really* needs
by David Rush 27 Aug '09

27 Aug '09

Sorry about this. I had forgotten about the isomorphism between chucking and function calls...Nothing to see here folks...move along :P 2009/8/27 David Rush <kumoyuki(a)gmail.com>: > Is attribute propagation when chucking values. e.g. > > class A > { > B used; > } > > class B > { > float freq; > } > > A a; > > 440.0 => a.used.freq; // ICK! > > It would be really lovely to have some way to just write > > 440.0 => a.freq; > > Now this probably means some way of defining synthetic attributes > (along the lines of what is in C#), but I think that this would > greatly improve usability for programming geek ChucKists as well as > musical ChucKists. At the very least, it allows code that uses a class > to be unaware of it's implementation details. This is an actual > problem for me as my algorithmic composition framework grows. > > Just $0.02 worth > > david rush > -- > GPG Public key at http://cyber-rush.org/drr/gpg-public-key.txt > -- GPG Public key at http://cyber-rush.org/drr/gpg-public-key.txt

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ChucK a day + php syntax highlighter
by Scott Hewitt 26 Aug '09

26 Aug '09

hi, Hope this is appropriate here. After dipping in and out of Chuck for the last couple of years I have decided to dive in so have been doing my own ChucK a day thing you can see it at www.ablelemon.co.uk/chuckaday. If any one has any suggestions as to things to try please let me know. As part of the processes I have been building a chuck php syntax highlighter. At the moment it is a bit of a mess but am working to clean it up for release. happy ChucKer Scott

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The ChucK Gong Show
by Les Hall 24 Aug '09

24 Aug '09

OK, news: The ChucK Show has degenerated into The Gong Show with both reckless joy and disgrace, ah well. We're going to do a "Name - that - tune" style show next friday at 7pm EST on www.electro-music.com and it will also be like "The Gong Show". Everyone in the chatroom gets one gong. We try to name that tune but if someone gets sick of the song they can gong it with their one and only gong. Of course, once someone has gonged we are all free to commence gonging until the hosts notice or whatever. So gong only once yet gong at will. Aside from that points will be tallied up for who first mentions the artist, title, and instrument of the song. So you can win up to three points per song. The judging will be randomly and haphazardly done by whoever is appointed plus me at the moment. So join us, and I also have a request... I need game show sounds in ChucK to add to my controller program for the show. A big old gong would be nice, plus maybe some buzzers or whatever. If you would like to contribute to the show's sound effects please post your code to this list or to the forum. Thanks, Comically yours, Les

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Re: [chuck-users] Playing with fire
by Les Hall 23 Aug '09

23 Aug '09

Kas, You win the most esoteric joke of the year award for that one. Only a subset of a specific type of programmer will get the joke, and I barely do myself. Nice work, now you can move up to ziggy cartoons. :) Les

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TextMate bundle
by Thomas Friese 23 Aug '09

23 Aug '09

Hi TextMate users, the ChucK.tmbundle is now avaiable from GitHub <http://tasmo.github.com/ChucK.tmbundle/>. Collaborative workers are very welcome! The source is on <http://github.com/tasmo/ChucK.tmbundle/tree/master>. Cheers Tom

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Re: [chuck-users] spline envelopes
by Bozelos Dimitris 23 Aug '09

23 Aug '09

Hi, thanks everyone for the replies. Gen[n] and CurveTable are useful I will give them a try. If i'm not mistaken the curves generated this way pass through the intermediate points, so I was thinking of bezier curves because they pass in between the intermediate points and meet only the edges and they are smoother. Thanks for the code Mike! I looked at your technique and I have a couple of observations/questions. I guess you disconnect the envelope to save cpu when not needed. But you have the phasor in ( .op() == 0 ) - probably for the same reason - which I haven't verified it but according to the manual should still be active but giving output of 0 - so it wastes cpu, no? And shouldn't be needed to block the input since you use the multiplier's gain for it, no? I usually use the passthru status ( .op() == -1 ) which shouldn't use any cpu. I post part of my envelope class in case anybody would be interested in this way. Maybe too much for just an envelope but in long complicated code I find it really time saving to use this kind of 'secure' code: public class XEnvelope { Envelope envelope; UGen @ inputRef; UGen @ outputRef; // default status: passthru -1 => envelope.op; int isChucked; // 1 if connected both ways (left-right) int isOn; // 1 if envelope.op() == 1 int isRunning; // 1 while envelope is running 5 => int isBlocked; // if( isBlocked == 5 ) it is not blocked // otherwise it indicates the op status before blocked // connect input // if already connected, disconnect and connect the new one fun void leftChuck( UGen input ) { if( inputRef != NULL ) { leftUnchuck(); } input => envelope; input @=> inputRef; if( outputRef != NULL ) { 1 => isChucked; } } // connect to output // if already connected, disconnect and connect the new one fun void rightChuck( UGen output ) { if( outputRef != NULL ) { rightUnchuck(); } envelope => output; output @=> outputRef; if( inputRef != NULL ) { 1 => isChucked; } } // disconnect input fun void leftUnchuck() { if( inputRef != NULL ) { inputRef =< envelope; NULL @=> inputRef; 0 => isChucked; } } // disconnect output fun void rightUnchuck() { if( outputRef != NULL ) { envelope =< outputRef; NULL @=> outputRef; 0 => isChucked; } } // when blocking the envelope be careful not to change envelope.op // elsewhere. security will be enhanced in the future fun void block() { if( isBlocked == 5 ) { envelope.op() => isBlocked; 0 => envelope.op; } } fun void unblock() { if( isBlocked != 5 ) { isBlocked => envelope.op; 5 => isBlocked; } } // being OFF, turn on, run and hold // needs to be turned off in the end with 'off' fun void on( float start, float target, int milliseconds ) { if( isChucked && !isOn ) { 1 => isRunning => isOn => envelope.op; milliseconds::ms => envelope.duration; start => envelope.value; target => envelope.target; milliseconds::ms => now; 0 => isRunning; } else if( !isChucked ) { <<< "ERROR: can't turn the envelope on - not connected" >>>; } else if( isOn ) { <<< "ERROR: can't turn the envelope on - already on" >>>; } } // being OFF, turn on, run and hold // needs to be turned off in the end with 'off' fun void on( float start, float target, int milliseconds ) { if( isChucked && !isOn ) { 1 => isRunning => isOn => envelope.op; milliseconds::ms => envelope.duration; start => envelope.value; target => envelope.target; milliseconds::ms => now; 0 => isRunning; } else if( !isChucked ) { <<< "ERROR: can't turn the envelope on - not connected" >>>; } else if( isOn ) { <<< "ERROR: can't turn the envelope on - already on" >>>; } } // being ON, run to target and turn off fun void off( float target, int milliseconds ) { if( isOn && !isRunning ) { 1 => isRunning; milliseconds::ms => envelope.duration; target => envelope.target; milliseconds::ms => now; 0 => isRunning; -1 => envelope.op; 0 => isOn; } else if( !isOn ) { <<< "ERROR: can't turn the envelope off - already off" >>>; } else if( isRunning ) { <<< "ERROR: can't turn the envelope off - running" >>>; } } // being ON, move to next target fun void to( float target, int milliseconds ) { if( isOn && !isRunning ) { 1 => isRunning; milliseconds::ms => envelope.duration; target => envelope.target; milliseconds::ms => now; 0 => isRunning; } else if( !isOn ) { <<< "ERROR: can't move the envelope - envelope off" >>>; } else if( isRunning ) { <<< "ERROR: can't move the envelope - running" >>>; } } // being OFF, turn on, run and turn off fun void onOff( float start, float target, int milliseconds ) { if( isChucked && !isOn ) { 1 => isRunning => isOn => envelope.op; milliseconds::ms => envelope.duration; start => envelope.value; target => envelope.target; milliseconds::ms => now; -1 => envelope.op; 0 => isOn; 0 => isRunning; } else if( !isChucked ) { <<< "ERROR: can't turn the envelope on/off - not connected" >>>; } else if( isOn ) { <<< "ERROR: can't turn the envelope on/off - already on" >>>; } } } ___________________________________________________________ Χρησιμοποιείτε Yahoo!; Βαρεθήκατε τα ενοχλητικά μηνύματα (spam); Το Yahoo! 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Re: [chuck-users] The ChucK Show
by Les Hall 21 Aug '09

21 Aug '09

Also, the recordings of previous shows are available in this thread on the second and third pages: http://electro-music.com/forum/viewtopic.php?t=33404 Les

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The ChucK Show
by Les Hall 21 Aug '09

21 Aug '09

Last week on the ChucK show we had a great time with PLOrk and beans, and we have enough material left over for a second PLOrk and beans show which will happen next week (Plork and Beans leftovers, mmmm). This week, today in about seven hours in fact, we will have a Nord Modular show. It's mostly very mellow, relaxing stuff with some tenser moments plus some really upbeat happy music too. If you miss it there will be a recording available along with all the previous shows. Les

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Playing with fire
by Kassen 21 Aug '09

21 Aug '09

Fellow ChucKists, Yesterday I posted this to the forum and I thought people here might be amused as well. I suppose it's "code art" but working from the idea that some art can be ugly. It might also be a bit like a toddler who discovers he *can* stuff beads up his nose and doesn't stop to pause whether he *should* do so... I'm sorry, Kas. UGen top; fun UGen foo(int n) { if (n <= 0) { return dac; } else { ([new SinOsc, new TriOsc, new SawOsc, new SqrOsc])[ Std.rand2(0, 3)] @=> UGen bar; 1.0 / n => (bar $ Phasor).phase; (n%3) + 1 => (bar $ PulseOsc).sync; (75 * (n-1)) + 1 => bar.gain; (5 * n) => (bar $ Shakers).freq; if (n == 1) bar @=> top; bar => foo(n - 1); return bar; } } Step stp => Envelope e; true => stp.next; 6::second => dur loop => e.duration; while (1) { top =< dac; !(e.value() $ int ) * 10000 => e.target; e => foo(([1, 4, 7, 10, 13])[Std.rand2(0,4)]); loop => now; }

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Gary Go on iPhone
by Hans Aberg 18 Aug '09

18 Aug '09

Illustration and perhaps inspiration of some musical software on the iPhone: http://link.brightcove.com/services/player/bcpid33571408001 http://www.keyboardmag.com/article/gary-go-gives/aug-09/99553 Hans

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