December 2005 - chuck-users - lists.cs.princeton.edu

fun dur GetT() rises to invalid type
by eduard 18 Dec '05

18 Dec '05

Hi there, I have a osc meta-instrument wich has a function to get the unit_time to advance. Something like: public class oscInstrument { // some members here // .... fun dur GetT(){ return T_}; } It compiles fine, but when used in the following manner: oscInstrument myInstrument; while(true) { //do_something //... noteDuration::myInstrument.GetT() => now } it rises the following error: invalid type 'oscInstrument' in postfix of dur expression... (must be of type 'dur') . However if I do the following: dur T; while(true) { //do_something myInstrument.GetT() => T; noteDuration::T=> now } everything works fine. Any ideas? Thanks, Eduard

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sinosc and phase_offset
by michael breitenbach 18 Dec '05

18 Dec '05

hi, this code: 60 => std.mtof => float freq; sinosc m1 => sinosc c1 => dac; freq => m1.sfreq; freq => c1.sfreq; while (1) { m1.last() => c1.phase_offset; 1::samp => now; } causes this error: operation failed (sorry)...(reason: line(10): class 'sinosc' has no member 'phase_offset') why??? - in the doc is a input for phase_offset in sinosc micha

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performance under linux
by Atte André Jensen 18 Dec '05

18 Dec '05

Hi I retested my midi setup stuff (http://www.atte.dk/midi.tgz) with the latest/greatest under linux, and there seems to be a quite large latency. About maybe 100ms at least way too large to be playable. However it seems that cpu usage is more relazed. Am I wrong in expecting improvements in the new release under linux, or am I missing something? Looking forward to any response... -- peace, love & harmony Atte http://www.atte.dk

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sporking member functions
by Atte André Jensen 18 Dec '05

18 Dec '05

Hi I tried the attached old (in other aspects not-working) code in the latest/greatest, but it seems that sporking a member function is still causing an exception. Am I right? Any plans on changing this? -- peace, love & harmony Atte http://www.atte.dk

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make linux-jack fails
by Atte André Jensen 17 Dec '05

17 Dec '05

Hi Just grabbed the latest/greatest, but make linux-jack fails: [atte@aarhus src]$ make linux-jack make -f makefile.jack make[1]: Entering directory `/data/atte/software/chuck/chuck-1.2.0.4/src' bison -dv -b chuck chuck.y gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck.tab.c flex -ochuck.yy.c chuck.lex gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck.yy.c gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_absyn.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_parse.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_errmsg.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_frame.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_symbol.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_table.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_utils.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_vm.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_instr.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_scan.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_type.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_emit.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_compile.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_dl.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_oo.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_lang.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_ugen.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_main.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_otf.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_stats.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_bbq.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_shell.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ chuck_console.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ digiio_rtaudio.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ midiio_rtmidi.cpp gcc -D__LINUX_JACK__ -O3 -c -D__CK_SNDFILE_NATIVE__ rtaudio.cpp rtaudio.cpp: In function 'int jackCallbackHandler(jack_nframes_t, void*)': rtaudio.cpp:2868: error: expected `;' before ':' token make[1]: *** [rtaudio.o] Error 1 make[1]: Leaving directory `/data/atte/software/chuck/chuck-1.2.0.4/src' make: [linux-jack] Error 2 (ignored) However make linux-alsa seems to work, so at least I have something to try out, but if comeone could help me with the jack stuff, I'd really appreciate it... -- peace, love & harmony Atte http://www.atte.dk

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Re: 2 questions (Adam Tindale)
by michael breitenbach 16 Dec '05

16 Dec '05

hi, this: sinosc a => dac; a.last => float x; was also my first idea - but it doesnt work. a error occurs: cannot resolve operator '=>' on types '[function]' and 'float'... (i have installed chuck 1.2.0.4.) micha

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icons for upcoming Chuck IDE?
by Spencer Salazar 16 Dec '05

16 Dec '05

Hello, I have been working on a free GPLed integrated development environment ("IDE") program designed specifically for development in ChucK, called miniAudicle. It is planned to be released for Mac OS X, Win32, and Linux. I was hoping to design some pretty-looking icons to represent the "add," "remove," "replace," "remove all," and "remove last" on-the-fly programming commands within the miniAudicle. Unfortunately, my graphic design skills leave much to be desired. So i ask of the ChucK community at large: would anybody like to contribute their icon design talents for use within the miniAudicle? The only characteristics im really looking for are that the icons be 48x48 pixels or larger, that they have a transparent background, and that, to some degree, they can be intuitively associated with the corresponding ChucK OTF commands. Here is a screenshot of the icons currently in use: http:// www.princeton.edu/~ssalazar/miniaudicle.png they work well enough, but they were designed for a web browser, so some of the icons dont really match up as well with the corresponding functionality as they could. Also, due to some licensing issues im not sure if I would be able to distribute them in any case. please let me know if youd be willing to help with this. also if anyone has any pointers to any good repositories of decent looking icons which could be easily used in this project, that would also be very helpful and probably involve less redundant labor. thanks spencer

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Re: [chuck-users] Segmentation fault
by Ollie Glass 15 Dec '05

15 Dec '05

Hi Ge, >> Sometimes I get a segmentation fault when loading a new sample >> into a sample buffer that's already playing. Sometimes it doesn't >> seem to cause a problem. Is there anything I can do to prevent >> these crashes? > > We just checked in a fix for sndbuf.read which now correctly > (hopefully) closes the file handles (which it wasn't doing) and > also resets a state variable. It is now in CVS, and will be part > of 1.2.0.4, which should be released by tomorrow. Please let us > know if this indeed remedies the problem. Also, which platform is > this crash on? Yes, 1.2.0.4 fixes the problem. I am on OS X 10.4.3. Thank you, Ollie

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warning: the use of 'tmpnam' is dangerous, better use 'mkstemp'
by Tyler Gillies 15 Dec '05

15 Dec '05

chuckas, Just built and tested 1.2.0.4 on linux-alsa. Work great (BLITs! Yes!). When I built, I was given this message: warning: the use of 'tmpnam' is dangerous, better use 'mkstemp' dangerous?? - Tyler Gillies

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2 questions
by michael breitenbach 15 Dec '05

15 Dec '05

hi, 1. is it possible to create a event from a audiosignal (for example a pulse force a event)? 2. and is it possible to use a audiosignal as a float value in chuck code - like a snapshot function? sinosc a => float x => dac; // this doesn't work micha

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