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MIDI program change causes event parsing error
by Ken Restivo 15 Apr '07

15 Apr '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The following code causes an "event parsing error!" whenever a 2-byte MIDI message such as a program change is sent: // the midi event MidiIn min; MidiOut mout[3]; // the message for retrieving data MidiMsg msg; // open the device if( !min.open( 0 ) ) me.exit(); <<< "MIDI in device:", min.num(), " <- ", min.name() >>>; for(0 => int i; i < mout.cap(); i++){ if( !mout[i].open( i + 1 ) ) me.exit(); <<< "MIDI out device:", mout[i].num(), " -> ", mout[i].name() >>>; } int eventnum; // TODO: subclass MidiMsg and stick these in there int channel; int command; while( true ) { // wait on the event 'min' min => now; // get the message(s) while( min.recv(msg) ) { msg.data1 & 0x0F => channel; msg.data1 & 0xF0 => command; // print out midi message <<< eventnum, "(", msg.data1, ")", channel, command, msg.data2, msg.data3 >>>; eventnum++; // note, controllers (not bank!!), or pitchbend if (command == 144 || (command == 176 && (msg.data2 != 0 && msg.data2 != 32)) || command == 224) { mout[0].send (msg); } else { // XXX program changes are 2 bytes! // how to make MidiMsg handle those?? mout[1].send(msg); } } } The exact error message is: "RtMidiOut::sendMessage: event parsing error!". How does one cajole MidiMsg into sending a 2-byte Program Change? It's a pretty standard, um, MIDI message. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGIe3We8HF+6xeOIcRAgKJAKDTJiuNklwhUD8NLAC+4TEJEif04ACdF1VU ZVfLQqAbb5m0zW9t4FGUWO4= =2CHt -----END PGP SIGNATURE-----

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Getting the channel of a MidiMsg?
by Ken Restivo 15 Apr '07

15 Apr '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm looking through the ChucK docs and source code, and I can't figure out how to get the MIDI *channel* from a MidiMsg event. Sure, there's data1 (the command), data2, and data3, but... no channel. Thanks. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGIdkMe8HF+6xeOIcRAqp/AKDhn2NVd0TIiSakwwS3PEB4i5XKSgCeL8e9 cl93uMfs609o02c9l0gzbW0= =LZsX -----END PGP SIGNATURE-----

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MIDI channel -- solved
by Ken Restivo 15 Apr '07

15 Apr '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Looks like I just have to OR the data1 with 0xF to split out the channel and command. Sorry for the noise. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGIeRge8HF+6xeOIcRAuzyAKDFFA8M5df7RM7yCLD7JrAb/doLMQCeMpWS bJKb7uNGLYUzcby/HK0rxMQ= =p/PL -----END PGP SIGNATURE-----

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Strange Behavior
by Piero B. Contezini 13 Apr '07

13 Apr '07

Hello, I don't know if this is the right place to put this on but, this code is crashing randomly on my tests: MAUI_View window; MAUI_Slider knob_0; window.size(300,300); window.name("Test"); window.position(0,100); knob_0.range(0,127); knob_0.size(150,knob_0.height()); //cut_knob_0.position(0,0); knob_0.name("Knob 0"); knob_0.displayFormat(MAUI_Slider.integerFormat); // impulse to filter to dac Impulse i => BiQuad f => Pan2 p => dac; // set the filter's pole radius .99 => f.prad; // set equal gain zeros 1 => f.eqzs; // set filter gain .5 => f.gain; window.addElement(knob_0); window.display(); 1 => int device; MidiIn min; MidiMsg msg; if( !min.open( device ) ) { <<< "erro ao iniciar device:" , device >>> ; } else { <<< "device inicializado:" , min.num() , " -> " , min.name() >>>; } public void controlKnob_0() { while(true) { while ( min.recv(msg) ) { msg.data1 => int msg_1; msg.data2 => int msg_2; msg.data3 => int msg_3; if(msg_2 == 3) { knob_0.value(msg_3); } } min => now; } } public void Distortion() { while(knob_0.value()) { knob_0.value() => float value; value * 39 => f.pfreq; // value => i.next; } min => now; } spork ~ controlKnob_0(); spork ~ Distortion(); while ( true ) { 1.0 => i.next; // Std.rand2f( 250, 5000 ) => f.pfreq; Std.rand2f( -1, 1 ) => p.pan; 100::ms => now; } What i'm doing is mapping one knob of my bcd2000 to a MAUI Slider, to see on the screen the position of the knob, as i've posted here before, the midi itself is hanging up using this controller, but I think it might be something i'm doing wrong, anyone can point me out a clue on what could be it? Thanks Piero

3 4

More music including ChucK sample code
by Ken Restivo 13 Apr '07

13 Apr '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Here's another one. http://www.restivo.org/blog/archives/92 I promise I'll actually write and post code and/or music written in ChucK, instead of just making up jams using the sample code. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGHxwTe8HF+6xeOIcRAifVAJ4pSIcIDsURtTaozlO7BTgKrcwtJwCgr+zU +BYP0fGDsrulxBnY3026ckM= =odps -----END PGP SIGNATURE-----

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hi-res pic of the chuck logo?
by Leuthold Dominik 12 Apr '07

12 Apr '07

hello i'll celebrate my first concert with chuck (miniAudicle ;-) this friday. i thought it will be nice if i can show the chuck logo on a big screen before/after the concert. so is there anywhere an image with a reasonable Resolution available? thanks /moudi

3 5

ctrl vs mfun
by Lukas Degener 10 Apr '07

10 Apr '07

Hi List, I am writing my own ugen. Are there any situations when I should NOT define something as ctrl/cget and use mfun instead? Hoping for enlightment :-), --lu

2 1

BCD2000 and Mini-Audicle Crash Report
by Piero B. Contezini 09 Apr '07

09 Apr '07

Hello, This is the crash report for the problem i've reported last friday. Do you need the chuck code to see if there is something wrong? Piero Date/Time: 2007-04-09 12:21:40.236 -0300 OS Version: 10.4.9 (Build 8P2137) Report Version: 4 Command: miniAudicle Path: /Applications/miniAudicle.app/Contents/MacOS/miniAudicle Parent: WindowServer [71] Version: ??? (0.1.3.7) PID: 1022 Thread: 5 Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000004 Thread 0: 0 libSystem.B.dylib 0x90009bf7 mach_msg_trap + 7 1 com.apple.CoreFoundation 0x9082e2b3 CFRunLoopRunSpecific + 2014 2 com.apple.CoreFoundation 0x9082dace CFRunLoopRunInMode + 61 3 com.apple.HIToolbox 0x92de98d8 RunCurrentEventLoopInMode + 285 4 com.apple.HIToolbox 0x92de8fe2 ReceiveNextEventCommon + 385 5 com.apple.HIToolbox 0x92de8e39 BlockUntilNextEventMatchingListInMode + 81 6 com.apple.AppKit 0x9328f465 _DPSNextEvent + 572 7 com.apple.AppKit 0x9328f056 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 137 8 com.apple.AppKit 0x93288ddb -[NSApplication run] + 512 9 com.apple.AppKit 0x9327cd2f NSApplicationMain + 573 10 org.miniAudicle.miniAudicle 0x00002a2e _start + 216 11 org.miniAudicle.miniAudicle 0x00002955 start + 41 Thread 1: 0 libSystem.B.dylib 0x9001a0ec select + 12 1 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 2: 0 libSystem.B.dylib 0x90009bf7 mach_msg_trap + 7 1 com.apple.CoreFoundation 0x9082e2b3 CFRunLoopRunSpecific + 2014 2 com.apple.CoreFoundation 0x9082dace CFRunLoopRunInMode + 61 3 com.apple.audio.CoreAudio 0x9146841e HALRunLoop::OwnThread(void*) + 158 4 com.apple.audio.CoreAudio 0x91468239 CAPThread::Entry(CAPThread*) + 93 5 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 3: 0 libSystem.B.dylib 0x9000ff0c read + 12 1 libSystem.B.dylib 0x900164ce __srefill + 289 2 libSystem.B.dylib 0x900260fd fgets + 109 3 org.miniAudicle.miniAudicle 0x0000d818 miniAudicle_Shell_UI::next_command(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::basic_string<char, std::char_traits<char>, std::allocator<char> >&) + 80 4 org.miniAudicle.miniAudicle 0x000850ba Chuck_Shell::run() + 182 5 org.miniAudicle.miniAudicle 0x00085214 shell_cb(void*) + 50 6 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 4: 0 libSystem.B.dylib 0x9001a0ec select + 12 1 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 5 Crashed: 0 org.miniAudicle.miniAudicle 0x00108295 CBufferSimple::put(void*, unsigned long) + 25 1 org.miniAudicle.miniAudicle 0x000324cb Chuck_VM::queue_event(Chuck_Event*, int) + 47 2 org.miniAudicle.miniAudicle 0x000730b5 Chuck_Event::queue_broadcast() + 75 3 org.miniAudicle.miniAudicle 0x0010869f CBufferAdvance::put(void*, unsigned long) + 159 4 org.miniAudicle.miniAudicle 0x0008c74b MidiInManager::cb_midi_input(double, std::vector<unsigned char, std::allocator<unsigned char> >*, void*) + 95 5 org.miniAudicle.miniAudicle 0x000984b4 midiInputCallback(MIDIPacketList const*, void*, void*) + 926 6 com.apple.audio.midi.CoreMIDI 0x96676645 LocalMIDIReceiverList::HandleMIDIIn(void*, void*, MIDIPacketList*) + 195 7 com.apple.audio.midi.CoreMIDI 0x96651f11 MIDIInPortThread::Run() + 245 8 com.apple.audio.midi.CoreMIDI 0x96652b6d XThread::RunHelper(void*) + 17 9 com.apple.audio.midi.CoreMIDI 0x9665a4ad CAPThread::Entry(CAPThread*) + 93 10 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 6: 0 libSystem.B.dylib 0x90037a57 mach_wait_until + 7 1 libSystem.B.dylib 0x9003a122 usleep + 82 2 org.miniAudicle.miniAudicle 0x00101fd0 kb_loop(void*) + 94 3 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 7: 0 libSystem.B.dylib 0x90037a57 mach_wait_until + 7 1 libSystem.B.dylib 0x9003a122 usleep + 82 2 org.miniAudicle.miniAudicle 0x00036766 Chuck_VM::run() + 312 3 org.miniAudicle.miniAudicle 0x0000510b vm_cb(void*) + 69 4 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 8: 0 libSystem.B.dylib 0x90048e07 semaphore_timedwait_signal_trap + 7 1 com.apple.audio.CoreAudio 0x9147565c CAGuard::WaitFor(unsigned long long) + 212 2 com.apple.audio.CoreAudio 0x9147557e CAGuard::WaitUntil(unsigned long long) + 66 3 com.apple.audio.CoreAudio 0x91473efa HP_IOThread::WorkLoop() + 690 4 com.apple.audio.CoreAudio 0x91473c43 HP_IOThread::ThreadEntry(HP_IOThread*) + 17 5 com.apple.audio.CoreAudio 0x91468239 CAPThread::Entry(CAPThread*) + 93 6 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 9: 0 libSystem.B.dylib 0x90048e07 semaphore_timedwait_signal_trap + 7 1 com.apple.audio.CoreAudio 0x9147565c CAGuard::WaitFor(unsigned long long) + 212 2 com.apple.audio.CoreAudio 0x9147557e CAGuard::WaitUntil(unsigned long long) + 66 3 com.apple.audio.CoreAudio 0x91473efa HP_IOThread::WorkLoop() + 690 4 com.apple.audio.CoreAudio 0x91473c43 HP_IOThread::ThreadEntry(HP_IOThread*) + 17 5 com.apple.audio.CoreAudio 0x91468239 CAPThread::Entry(CAPThread*) + 93 6 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 10: 0 libSystem.B.dylib 0x90037a57 mach_wait_until + 7 1 libSystem.B.dylib 0x9003a122 usleep + 82 2 org.miniAudicle.miniAudicle 0x00088e77 watch_dog(void*) + 315 3 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 11: 0 libSystem.B.dylib 0x9001a0ec select + 12 1 libSystem.B.dylib 0x90024147 _pthread_body + 84 Thread 5 crashed with X86 Thread State (32-bit): eax: 0x00000000 ebx: 0x000324a8 ecx: 0x1657f0c0 edx: 0x14b89620 edi: 0x1657f0bc esi: 0x1657f070 ebp: 0xb06cfcb8 esp: 0xb06cfca8 ss: 0x0000001f efl: 0x00010202 eip: 0x00108295 cs: 0x00000017 ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037 Binary Images Description: 0x1000 - 0x1cffff org.miniAudicle.miniAudicle ??? 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0x9392efff com.apple.AppKit 6.4.8 (824.42) /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit 0x93caf000 - 0x93d2afff com.apple.CoreData 91 (92.1) /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData 0x93d63000 - 0x93e1dfff com.apple.audio.toolbox.AudioToolbox 1.4.5 /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox 0x93e60000 - 0x93e60fff com.apple.audio.units.AudioUnit 1.4.2 /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit 0x93e62000 - 0x94023fff com.apple.QuartzCore 1.4.12 /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore 0x94069000 - 0x940aafff libsqlite3.0.dylib /usr/lib/libsqlite3.0.dylib 0x940b2000 - 0x940ecfff libGLImage.dylib /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib 0x940f1000 - 0x94102fff com.apple.CoreVideo 1.4 /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo 0x94293000 - 0x942a2fff libCGATS.A.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCGATS.A.dylib 0x942a9000 - 0x942b4fff libCSync.A.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib 0x94300000 - 0x9431afff libRIP.A.dylib /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib 0x9664d000 - 0x96683fff com.apple.audio.midi.CoreMIDI 1.5.1 (41) /System/Library/Frameworks/CoreMIDI.framework/Versions/A/CoreMIDI Model: MacBookPro2,2, BootROM MBP22.00A5.B00, 2 processors, Intel Core 2 Duo, 2.33 GHz, 2 GB Graphics: ATI Radeon X1600, ATY,RadeonX1600, PCIe, 256 MB Memory Module: BANK 0/DIMM0, 1 GB, DDR2 SDRAM, 667 MHz Memory Module: BANK 1/DIMM1, 1 GB, DDR2 SDRAM, 667 MHz AirPort: AirPort Extreme, 1.0.47 Bluetooth: Version 1.7.14f14, 2 service, 1 devices, 1 incoming serial ports Network Service: Ethernet Integrada, Ethernet, en0 Network Service: AirPort, AirPort, en1 Network Service: Parallels Host-Guest, Ethernet, en2 Network Service: Parallels NAT, Ethernet, en3 Serial ATA Device: Hitachi HTS541612J9SA00, 111.79 GB Parallel ATA Device: MATSHITADVD-R UJ-857D, 4.09 GB USB Device: Built-in iSight, Micron, Up to 480 Mb/sec, 500 mA USB Device: BCD2000, Behringer, Up to 12 Mb/sec, 500 mA USB Device: Bluetooth HCI, Up to 12 Mb/sec, 500 mA USB Device: Apple Internal Keyboard / Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA USB Device: Microsoft Wireless Optical Mouse(r) 1.00, Microsoft, Up to 1.5Mb/sec, 500 mA USB Device: IR Receiver, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA

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A few random ChucK questions
by Ken Restivo 08 Apr '07

08 Apr '07

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 A couple random ChucK questions: 1) Is there a tutorial or example code recipe somewhere specifically showing how to sync ChucK with JACK Transport? I want to use ChucK to supplement other tools that are sync'ed together using JACK (i.e. Hydrogen, Ardour, Rosegarden). I saw a thread that said, basically "use OSC", but I don't see any ChucK sample code that shows how to use OSC for syncing ChucK's clock with an external OSC-based source, i.e. like JACK transport. 2) A related but possibly off-topic question is: how do I translate JACK transport into OSC so that it can be sent to ChucK? Ardour and Rosegarden can send timestamps via MIDI, so that's one possible solution. Perhaps ChucK can accept MIDI sync, eliminating the OSC middleman? 3) The polyfony and gomidi examples are great, but they seem to want to initiate a connection. That doesn't work too well: I start up synths (ChucK being used as a synth) and then connect my keyboard or sequencer to them using aconnect or qjackctl. So I guess what I'm looking for is a code snippet of a loop that'll have ChucK sit around waiting for an incoming MIDI connection, rather than trying to initiate one. Likewise, better if the shred doesn't die or become unresponsive to MIDI if the connection is closed and then opened again, i.e. from a different keyboard or sequencer. 4) I'm really new to ChucK, but I didn't see any way to release a note. The sample code sounds like it stops the note hard at receipt of a note off message, or after 100ms, but reading the code, it doesn't seem to deal with note off at all! Most instruments need a release time, so I'd need a way to receive a note off, then start the note's release envelope, and I'm too new to ChucK yet to see how to do that. Questions #1 and #2 are related to using ChucK as a sequencer or beatbox. Questions #3 and #4 are related to using ChucK as a softsynth. The latter is a higher priority for me than the former, though I'm intrigued by both possibilities. If there's a ChucK script somewhere that expands on the midi examples, to provide something that behaves like any ordinary JACK softsynth (connect/disconnect via ALSA MIDI), then I would probably use that a lot. I could then change the code of the handler() function to experiment with different instruments, or add code to switch instruments based on MIDI program change events, etc. The built-in Ugens have lots of interesting parameters that seem to be already hard-coded to MIDI controller events, which I'd love to play with using real knobs on my keyboard controller. It seems like ChucK could be a very expressive softsynth, with parameters controlled not through a software GUI, but through real rotary controllers and buttons on a MIDI keyboard-- nice for performance purposes. The "plumbing" code I'd need (or need a lot of help writing), is the skeleton to handle waiting for incoming MIDI connnections instead of trying to open() them, and to handle note off events with some kind of decay envelope. From there, I think I can figure out the program change and controller change stuff myself. My apologies if I'm the only person out there trying to use ChucK as basically a GUI-less softsynth controlled by MIDI. - -ken -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFGFcg2e8HF+6xeOIcRAg0mAKCgfZtKFeb7ZK6TL8QCSiUT8XU61QCgxLSc HgJhYAcWcp1gN63rxuq24EQ= =EbUv -----END PGP SIGNATURE-----

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Re: [chuck-users] chuck-users Digest, Vol 21, Issue 5
by Perry R Cook 06 Apr '07

06 Apr '07

Kas. This is great. Press is press, even it's short, wrong, or whatever. Keep up the ChucK!! PRC

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