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

[Fixed] emacs mode indention problem
by Atte André Jensen 19 Aug '06

19 Aug '06

Hi I solved the mystery of why the emacs mode would indent randomly upon loading a file: tabs! If I change this: (setq default-tab-width 4) to (setq default-tab-width 4) (setq-default indent-tabs-mode nil) everything works well (espcially after getting rid of all tabs in all files and re-indenting them)... For completeness I attach the complete emacs mode... -- peace, love & harmony Atte http://www.atte.dk | quartet: http://www.anagrammer.dk http://www.atte.dk/gps | compositions: http://www.atte.dk/compositions

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updated MIDIsender wrapper class
by Bruce Murphy 31 Jul '06

31 Jul '06

I've been playing with the midiwrapper class I sent in yesterday and I'm convinced that it's getting to the useful stage. At least I was able to get ChucK noodling away on several modules while I worked :) With great embarassment I also finally noticed that string comparisons are already there so I can implement this: MIDIsender m; m.open("JD990"); Only works on Mac OS X for the moment, becuase we've got AudioMIDI setup to keep track of where things are plugged in. The interface is there for other platforms if you can identify ports somehow. The latest code for the class, fledgling documentation on how to use it and several examples showing useful functionality are at: http://www.rattus.net/~packrat/audio/ChucK/ I have several other things I want to do, but some of them are waiting on better string handling. A written note (C#3) to midinote converter is pretty high on that list. It might be easier to put into the std library, or should there be a MIDI library? B> -- Packrat (BSc/BE;COSO;Wombat Implementor) Nihil illegitemi carbovndvm

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MIDI sending, small messages
by Bruce Murphy 31 Jul '06

31 Jul '06

I haven't been able to figure this out either from the documentation or the code (although I must admit that I'm still a little fuzzy on how the underlying functions get exported with typing to ChucK programs) How do I send short (2 byte) MIDI messages? I know that in theory spurious bytes won't matter, but since I use older MIDI kit, I don't want to take the chance of confusing it. If I'm missing documentation on how this works, I'd love to hear about it so I can just pull what I need out of the code :) (Or even documentation on the how Chuck VM -> underlying implementation code works) B> -- Packrat (BSc/BE;COSO;Wombat Implementor) Nihil illegitemi carbovndvm

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Re: [chuck-users] [chuck] miniAudicle-0.1.3.3 release (mac + linux + win)
by Atte André Jensen 30 Jul '06

30 Jul '06

Spencer Salazar wrote: > This is the first miniAudicle version for which (experimental, but > generally usable) [Windows and] Linux versions are available. Great!!!!! I tried to build it (debian/linux), I followed everything except "2. Build the Styled Text Control (STC) wxWidgets contrib library." Since I couldn't find the directory build-gtk). When I try to make I get: [atte@aarhus miniAudicle-0.1.3.3]$ make linux-alsa make -f makefile.alsa make[1]: Entering directory `/home/atte/software/chuck/miniAudicle-0.1.3.3' gcc -o wxw/mAParentFrame.o -D__LINUX_ALSA__ -D__LINUX__ -D__MA_WXWIDGETS__ `wx-config --cppflags` -O3 -c -D__CK_SNDFILE_NATIVE__ -Ichuck/src -Iwxw -I/home/atte/software/chuck/miniAudicle-0.1.3.3 wxw/mAParentFrame.cpp wxw/mAParentFrame.cpp: In constructor ` mAParentFrame::mAParentFrame(miniAudicle*, wxDocManager*, wxFrame*, const wxString&, const wxPoint&, const wxSize&, long int)': wxw/mAParentFrame.cpp:369: error: no matching function for call to `wxString:: Printf(const char[], const char[], const char[])' /usr/include/wx-2.6/wx/string.h:1080: error: candidates are: int wxString::Printf(const wxChar*, ...) make[1]: *** [wxw/mAParentFrame.o] Error 1 make[1]: Leaving directory `/home/atte/software/chuck/miniAudicle-0.1.3.3' make: [linux-alsa] Error 2 (ignored) Is this because I skipped step 2? If so a little more explanation regarding where I find the directory and/or which package I might be missing would be appreciated. Really looking forward to get this running! -- peace, love & harmony Atte http://www.atte.dk | quartet: http://www.anagrammer.dk http://www.atte.dk/gps | compositions: http://www.atte.dk/compositions

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chuck MIDI handling
by Bruce Murphy 30 Jul '06

30 Jul '06

Just a question, before I run off and duplicate anything. I use a lot of outboard MIDI stuff and am very interested in using chuck for glue and MIDI generation. As far as I can see, MIDI handling in chuck is fairly clumsy, particularly for MIDI generation. Is anyone currently working on developing a more friendly interface for this or is it worth taking some time over. Also, is the general push for this sort of thing to be put in core ChucK or to sit off to one side? B> -- Packrat (BSc/BE;COSO;Wombat Implementor) Nihil illegitemi carbovndvm

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clearing arrays quickly
by Bruce Murphy 30 Jul '06

30 Jul '06

If I've got n array of say, ints, either 1 or two dimensional, is there a fast way to clear the array (or set it some constant value of my choice). Can this be done for array slices, or an entire column or row of a multi-d array? Thanks, B> -- Packrat (BSc/BE;COSO;Wombat Implementor) Nihil illegitemi carbovndvm

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midiaudicle editor wishlist
by Bruce Murphy 30 Jul '06

30 Jul '06

Realistically, how much functionality would we expect to see in the midi audicle editor? A few things I'd like ot see included. 1. Autoindent, at least to the point of indenting the same as the line preceding 2. Syntax highlighting understanding hex literals. Haven't touched the source, so I don't know if this is an area of active concern or how difficult ti woudl be. B> -- Packrat (BSc/BE;COSO;Wombat Implementor) Nihil illegitemi carbovndvm

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Feature request: compression
by Ollie Glass 30 Jul '06

30 Jul '06

I'd love a compression effect in ChucK. Any chance of adding one as an object, or can anyone make one with a script? Ollie

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OneZero example
by Atte André Jensen 28 Jul '06

28 Jul '06

Hi Ok, I'm interested in getting some basic filtering going, first maybe just a simple low pass filter. So I received my copy of "Real Sound Synthesis". Section 3.9 suggests a low pass filter could be realized with a one-zero filter with "a" set between 0 and 1. Looking at http://chuck.cs.princeton.edu/doc/program/ugen_full.html#OneZero I don't see any "a", and where in the book can I read about b0 and b1. Moreover I wasn't able to locate any example code using OneZero, so if someone could provide me with a (couple of) simple example(s), I'd really appreciate it... -- peace, love & harmony Atte http://www.atte.dk | quartet: http://www.anagrammer.dk http://www.atte.dk/gps | compositions: http://www.atte.dk/compositions

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Re: [chuck-users] Stopping and restart shreds
by Ollie Glass 28 Jul '06

28 Jul '06

> >> I'd like to use functions to stop and restart shreds. Is this the >> right way to do it? It doesn't seem to be working properly - I get >> errors from some shreds when I thought they'd all stopped. >> >> Shred shredA, shredB; >> >> fun void sporkAll() { >> spork ~ funA() @=> shredA; >> spork ~ funB() @=> shredB; >> me.yield(); >> } >> >> fun void killAllShreds() { >> shredA.exit(); >> shredB.exit(); >> me.yield(); >> } >> > > In previous versions of chuck invoking 'exit' on shred didn't seem to > work (for me). Instead I was killing shreds in this way: > > shredA.id => machine.remove; > > But in 1.2.0.6 'exit' seems to work properly. > > Another significant note: the shred which is calling these functions > must not exit. Otherwise those functions won't work for some reason. > > Developers, please correct me if I'm wrong :) The ideas about a join method sound great for the future, but I currently have threads I can't stop with either the shred.exit() machine.remove techniques. Is there any kind of kill function I can use as a workaround for now? Ollie

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