November 2014 - chuck-users - lists.cs.princeton.edu

Mesh2D chugin: problem with setting .xpos/.ypos
by Jean Menezes da Rocha 30 Nov '14

30 Nov '14

Hello, I am trying to get Mesh2D into an useful thing. However, even though I assign arbitrary float values to .xpos or .ypos, they always return zero regardless of my explicit declaration. When I run, for instance, the example mesh-help.ck from the repo and ask ChucK to print all values, I get always zero for .xpos and .ypos: Mesh2D mesh1 => dac.left; Mesh2D mesh2 => dac.right; 0.5 => mesh1.gain => mesh2.gain; while (true) { Math.random2(2,12) => mesh1.x; Math.random2(2,12) => mesh1.y; Math.randomf() => mesh1.xpos; Math.randomf() => mesh1.ypos; 1 => mesh1.noteOn; 250::ms => now; Math.random2(2,12) => mesh2.x; Math.random2(2,12) => mesh2.y; Math.randomf() => mesh2.xpos; Math.randomf() => mesh2.ypos; 1 => mesh2.noteOn; 250::ms => now; <<<mesh1.x(), mesh1.y(), mesh1.xpos(), mesh1.ypos()>>>; <<<mesh2.x(), mesh2.y(), mesh2.xpos(), mesh2.ypos()>>>; } # chuck mesh-help.ck 11 9 0.000000 0.000000 4 5 0.000000 0.000000 4 9 0.000000 0.000000 10 11 0.000000 0.000000 6 5 0.000000 0.000000 2 3 0.000000 0.000000 5 6 0.000000 0.000000 2 6 0.000000 0.000000 3 7 0.000000 0.000000 10 2 0.000000 0.000000 ...and so on. What do you think about it? Best regards! -- Jean Menezes da Rocha Compositor Professor -- Faculdades Est Mestre e Doutorando em Composição pela Universidade Federal da Bahia

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chugins won't compile
by Jean Menezes da Rocha 28 Nov '14

28 Nov '14

Hello, fellow ChucKers, I cloned the ccrma/chugins repo from github. When I try to "make linux", the following error log appears: CHUCK_STRICT=1 make -C ABSaturator/ linux > make[1]: Entering directory '/home/jean/sandbox/chugins/ABSaturator' > g++ -D__LINUX_ALSA__ -I../chuck/include/ -fPIC -O3 -Werror -c -o > ABSaturator.o ABSaturator.cpp > In file included from ../chuck/include/chuck_oo.h:43:0, > from ../chuck/include/chuck_dl.h:41, > from ABSaturator.cpp:27: > ../chuck/include/util_thread.h:81:17: error: ‘THREAD_FUNCTION’ has not > been declared > bool start( THREAD_FUNCTION routine, void * ptr = NULL ); > ^ > ../chuck/include/util_thread.h:94:5: error: ‘THREAD_HANDLE’ does not name > a type > THREAD_HANDLE thread; > ^ > ../chuck/include/util_thread.h: In member function ‘void XThread::clear()’: > ../chuck/include/util_thread.h:91:20: error: ‘thread’ was not declared in > this scope > void clear() { thread = 0; } > ^ > ../chuck/include/util_thread.h: At global scope: > ../chuck/include/util_thread.h:115:5: error: ‘MUTEX’ does not name a type > MUTEX mutex; > ^ > In file included from ../chuck/include/chuck_dl.h:41:0, > from ABSaturator.cpp:27: > ../chuck/include/chuck_oo.h:485:28: error: ‘THREAD_TYPE’ has not been > declared > static THREAD_RETURN ( THREAD_TYPE writeStr_thread ) ( void *data ); > ^ > ../chuck/include/chuck_oo.h:485:71: error: ISO C++ forbids declaration of > ‘THREAD_RETURN’ with no type [-fpermissive] > static THREAD_RETURN ( THREAD_TYPE writeStr_thread ) ( void *data ); > ^ > ../chuck/include/chuck_oo.h:485:71: error: ‘THREAD_RETURN’ declared as > function returning a function > ../chuck/include/chuck_oo.h:486:28: error: ‘THREAD_TYPE’ has not been > declared > static THREAD_RETURN ( THREAD_TYPE writeInt_thread ) ( void *data ); > ^ > ../chuck/include/chuck_oo.h:486:71: error: ISO C++ forbids declaration of > ‘THREAD_RETURN’ with no type [-fpermissive] > static THREAD_RETURN ( THREAD_TYPE writeInt_thread ) ( void *data ); > ^ > ../chuck/include/chuck_oo.h:486:71: error: ‘THREAD_RETURN’ declared as > function returning a function > ../chuck/include/chuck_oo.h:487:28: error: ‘THREAD_TYPE’ has not been > declared > static THREAD_RETURN ( THREAD_TYPE writeFloat_thread ) ( void *data ); > ^ > ../chuck/include/chuck_oo.h:487:73: error: ISO C++ forbids declaration of > ‘THREAD_RETURN’ with no type [-fpermissive] > static THREAD_RETURN ( THREAD_TYPE writeFloat_thread ) ( void *data ); > ^ > ../chuck/include/chuck_oo.h:487:73: error: ‘THREAD_RETURN’ declared as > function returning a function > makefile:102: recipe for target 'ABSaturator.o' failed > make[1]: *** [ABSaturator.o] Error 1 > make[1]: Leaving directory '/home/jean/sandbox/chugins/ABSaturator' > makefile:30: recipe for target 'ABSaturator/ABSaturator.chug' failed > make: *** [ABSaturator/ABSaturator.chug] Error 2 What do you think? Best regards! -- Jean Menezes da Rocha Compositor Professor -- Faculdades Est Mestre e Doutorando em Composição pela Universidade Federal da Bahia

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Daniel: Convolution
by Perry Cook 27 Nov '14

27 Nov '14

Hey, check out my FIR Chugin: https://github.com/ccrma/chugins/tree/master/FIR In the examples folder there's a convolution example. Not super efficient (circular buffers would be required for that), but direct from the definition. Most efficient would be FFT based. If there's no example of that. I'll make one. Standby. Enjoy!! Prc Sent from my iPhone > On Nov 25, 2014, at 9:00 AM, chuck-users-request(a)lists.cs.princeton.edu wrote: > > End of chuck-users Digest, Vol 112, Issue 8 > *******************************************

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real-time convolution in Chuck
by Daniel Chapiro 24 Nov '14

24 Nov '14

Hi - I have a performance problem, and I wonder if anyone has already solved this. I want to do a time-domain convolution of a real time signal (generated with a MIDI controller) and an IR of a cello body (a short .wav file). TIME DOMAIN: I tried first doing it brute-force, in the time domain: (1) I pre-loaded the IR wav file (with SndBuf) into an array (truncated to N elements), and normalized the values (divided by the sum of the abs values) (2) using .last() I kept grabbing each music sample (and keeping the last N values in a circular buffer) (3) for each new music input value, I convolved the last N with the IR, and then stuffed the output into the dac (using an Impulse UGen) Surprisingly, it worked. Not surprisingly it ran out of steam with N > 50… ;-) Has anybody coded this as a Chugin, and made it work with reasonable-size IRs? FREQUENCY DOMAIN: Would this go much faster if instead of the above, I pre-computed the DFT of the IR, and then went in block fashion doing FFTs of the music, multiplying by the IR spectrum, doing the iFFT, and overlap-summation to get the time domain signal? Has anybody coded this in Chuck or as a Chugin? SC: Or is this the kind of application for which I should go with SuperCollider instead, to get the required real-time performance? Thanks, Daniel

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check if a shred exited
by Jean Menezes da Rocha 12 Nov '14

12 Nov '14

Hello, ChucKers, I want to know if I can check whether a shred has finished running or not. For instance, lets say I run: chuck foo.ck bar.ck and bar.ck must exit immediately after foo.ck exits. Can it be done? Thanks in advance! -- Jean Menezes da Rocha Compositor Professor -- Faculdades Est Mestre e Doutorando em Composição pela Universidade Federal da Bahia

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Access super-classes' methods from subclass
by Will Hardwick-Smith 05 Nov '14

05 Nov '14

Is there a way to do something like this in ChucK? class A extends B { // override B's method public void doSomething(){ super.doSomething(); // do other things too } }

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Compare strings?
by Will Hardwick-Smith 04 Nov '14

04 Nov '14

There were some posts from 2005 about the fact that this wasn't implemented yet. Is it possible now?

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chuck --probe crashes (SEGV)
by Stefan Blixt 04 Nov '14

04 Nov '14

Lately chuck --probe has started crashing consistently on my OSX computer. I just ran it with all midi and audio devices unplugged, and it still crashed. Any ideas? I switch midi devices a lot, and it's a bit cumbersome to have to use trial-and-error to find the right midi device... -------------------------------------------- chestnut:~ stefanblixt$ uname -a Darwin chestnut.local 13.4.0 Darwin Kernel Version 13.4.0: Sun Aug 17 19:50:11 PDT 2014; root:xnu-2422.115.4~1/RELEASE_X86_64 x86_64 chestnut:~ stefanblixt$ chuck --version chuck version: 1.3.4.0 (chimera) mac os x : intel : 64-bit http://chuck.cs.princeton.edu/ http://chuck.stanford.edu/ chestnut:~ stefanblixt$ chuck --probe [chuck]: found 3 device(s) ... [chuck]: ------( audio device: 1 )--------------- [chuck]: device name = "Apple Inc.: Built-in Microphone" [chuck]: probe [success] ... [chuck]: # output channels = 0 [chuck]: # input channels = 2 [chuck]: # duplex Channels = 0 [chuck]: default output = NO [chuck]: default input = YES [chuck]: natively supported data formats: [chuck]: 32-bit float [chuck]: supported sample rates: [chuck]: 8000 Hz [chuck]: 9600 Hz [chuck]: 11025 Hz [chuck]: 16000 Hz [chuck]: 22050 Hz [chuck]: 32000 Hz [chuck]: 44100 Hz [chuck]: 48000 Hz [chuck]: 88200 Hz [chuck]: 96000 Hz [chuck]: [chuck]: ------( audio device: 2 )--------------- [chuck]: device name = "Apple Inc.: Built-in Input" [chuck]: probe [success] ... [chuck]: # output channels = 0 [chuck]: # input channels = 2 [chuck]: # duplex Channels = 0 [chuck]: default output = NO [chuck]: default input = NO [chuck]: natively supported data formats: [chuck]: 32-bit float [chuck]: supported sample rates: [oA]: 8000 Hz Segmentation fault: 11 chestnut:~ stefanblixt$ --------------------------------------------

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Re: [chuck-users] chuck --probe crashes
by Perry R Cook 04 Nov '14

04 Nov '14

Spencer said he's working on a Yosemite fix (different from the chuck --probe issue), and I think that fix should include the fix to probe and some other issues dealt with as well. PRC ----- Original Message ----- Send chuck-users mailing list submissions to chuck-users(a)lists.cs.princeton.edu To subscribe or unsubscribe via the World Wide Web, visit https://lists.cs.princeton.edu/mailman/listinfo/chuck-users or, via email, send a message with subject or body 'help' to chuck-users-request(a)lists.cs.princeton.edu You can reach the person managing the list at chuck-users-owner(a)lists.cs.princeton.edu When replying, please edit your Subject line so it is more specific than "Re: Contents of chuck-users digest..." Today's Topics: 1. Re: chuck --probe crashes (SEGV) (Rich Caloggero) 2. Re: chuck --probe crashes (SEGV) (Michael Heuer) 3. Re: chuck --probe crashes (SEGV) (Stefan Blixt)

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Re: [chuck-users] Attempt to exit a sporked shred
by Casper Schipper 01 Nov '14

01 Nov '14

Hi Will, Try use machine.remove(shred.id()) instead of shred.exit() : See examples/shred/spork2.ck: // define function fun void foo() { while( true ) { <<< "hi" >>>; .2::second => now; } } // spork the function, remember the shred reference spork ~ foo() @=> Shred @ s; // wait for 2 seconds 2::second => now; // remove by id Machine.remove( s.id() ); // wait a little more 2::second => now; Happy chucking! Casper > On 1 nov. 2014, at 08:42, chuck-users-request(a)lists.cs.princeton.edu wrote: > > Send chuck-users mailing list submissions to > chuck-users(a)lists.cs.princeton.edu > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > or, via email, send a message with subject or body 'help' to > chuck-users-request(a)lists.cs.princeton.edu > > You can reach the person managing the list at > chuck-users-owner(a)lists.cs.princeton.edu > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of chuck-users digest..." > Today's Topics: > > 1. re Instanceof in ChucK (Casper Schipper) > 2. Re: re Instanceof in ChucK (Casper Schipper) > 3. Attempt to exit a sporked shred. (Will Hardwick-Smith) > 4. Un-chuck something? (Will Hardwick-Smith) > > From: Casper Schipper <casper.schipper(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Date: 31 oktober 2014 17:09:00 CET > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Subject: [chuck-users] re Instanceof in ChucK > > > Try .toString(): it's the closest thing. > > SinOsc foo; > Object bar; > > class MyClass { > float value; > } > > MyClass myInstance; > > <<<foo.toString()>>>; > <<<bar.toString()>>>; > <<<myInstance.toString()>>>; > > > "SinOsc:10061d9a0" : (string) > "Object:61000009e190" : (string) > "MyClass:61000009e140" : (string) > > Best, > Casper > > >> >> 1. Instanceof in ChucK (Will Hardwick-Smith) >> >> From: Will Hardwick-Smith <whardwicksmith(a)gmail.com <mailto:whardwicksmith@gmail.com>> >> To: chuck-users(a)lists.cs.princeton.edu <mailto:chuck-users@lists.cs.princeton.edu> >> Date: 30 oktober 2014 23:34:57 CET >> Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu <mailto:chuck-users@lists.cs.princeton.edu>> >> Subject: [chuck-users] Instanceof in ChucK >> >> >> Say I have Object o, and I want to see if it is an instance of UGen or a sub-class of UGen. >> Is there a way to check this in ChucK? >> >> >> _______________________________________________ >> chuck-users mailing list >> chuck-users(a)lists.cs.princeton.edu <mailto:chuck-users@lists.cs.princeton.edu> >> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users > > > > > From: Casper Schipper <casper.schipper(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Date: 31 oktober 2014 17:24:33 CET > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Subject: Re: [chuck-users] re Instanceof in ChucK > > > Ah sorry Will, I misread your question. > > I am afraid that there is no built-in way in ChucK to check what is the super-class of an object. > > However, you could take a look at this earlier discussion which discusses the same problem: > https://lists.cs.princeton.edu/pipermail/chuck-users/2013-January/007223.ht… <https://lists.cs.princeton.edu/pipermail/chuck-users/2013-January/007223.ht…> > > best, > Casper > >> On 31 okt. 2014, at 17:09, Casper Schipper <casper.schipper(a)gmail.com <mailto:casper.schipper@gmail.com>> wrote: >> >> Try .toString(): it's the closest thing. >> >> SinOsc foo; >> Object bar; >> >> class MyClass { >> float value; >> } >> >> MyClass myInstance; >> >> <<<foo.toString()>>>; >> <<<bar.toString()>>>; >> <<<myInstance.toString()>>>; >> >> >> "SinOsc:10061d9a0" : (string) >> "Object:61000009e190" : (string) >> "MyClass:61000009e140" : (string) >> >> Best, >> Casper >> >> >>> >>> 1. Instanceof in ChucK (Will Hardwick-Smith) >>> >>> From: Will Hardwick-Smith <whardwicksmith(a)gmail.com <mailto:whardwicksmith@gmail.com>> >>> To: chuck-users(a)lists.cs.princeton.edu <mailto:chuck-users@lists.cs.princeton.edu> >>> Date: 30 oktober 2014 23:34:57 CET >>> Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu <mailto:chuck-users@lists.cs.princeton.edu>> >>> Subject: [chuck-users] Instanceof in ChucK >>> >>> >>> Say I have Object o, and I want to see if it is an instance of UGen or a sub-class of UGen. >>> Is there a way to check this in ChucK? >>> >>> >>> _______________________________________________ >>> chuck-users mailing list >>> chuck-users(a)lists.cs.princeton.edu <mailto:chuck-users@lists.cs.princeton.edu> >>> https://lists.cs.princeton.edu/mailman/listinfo/chuck-users <https://lists.cs.princeton.edu/mailman/listinfo/chuck-users> >> > > > > > From: Will Hardwick-Smith <whardwicksmith(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Date: 1 november 2014 06:47:05 CET > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Subject: [chuck-users] Attempt to exit a sporked shred. > > > I want to end/exit/destroy a sporked shred. > > In this example code, I attempt to exit a sporked function. When executed, the shred doesn't stop as I'd expect. > > fun void foo(){ > 1::week => now; > } > spork ~ foo() @=> Shred shred; > 2::second => now; > shred.exit(); > 1::week => now; > > How can I exit the sporked shred? > > > > From: Will Hardwick-Smith <whardwicksmith(a)gmail.com> > To: chuck-users(a)lists.cs.princeton.edu > Date: 1 november 2014 08:42:15 CET > Reply-To: ChucK Users Mailing List <chuck-users(a)lists.cs.princeton.edu> > Subject: [chuck-users] Un-chuck something? > > > Is there a way to un-chuck something? > If this code is executed: > SinOsc sine => dac; > Is there a way to make it so sine is no longer being chucked to dac? > > > _______________________________________________ > chuck-users mailing list > chuck-users(a)lists.cs.princeton.edu > https://lists.cs.princeton.edu/mailman/listinfo/chuck-users

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