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Re: [chuck-users] MidiIn/MidiMsg expansion
by Mario Buoninfante 20 Jan '21

20 Jan '21

Hi, I suppose one solution could be to have a new dedicate class (ie SysexMsg) with a getSysex() method, and then tweak the various bits that deal with receiving MIDI so that if the incoming msg is a sysex we can use a SysexMsg object instead of a MidiMsg one. The end result could be something along this line: MidiIn min; MidiMsg msg; SysexMsg sysex; ... ... while (true) { min => now; while (min.recv(sysex)) do something while (min.recv(msg) do something else } cheers, Mario

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MidiIn/MidiMsg expansion
by Mario Buoninfante 20 Jan '21

20 Jan '21

Hi all, As you know I was trying to add sysex support to ChucK, and there are some progress there. I managed to let sysex msg through, and I can get the first 3 bytes using the data1, data2 and data3 member variables (MidiMsg). But of course sysex messages can have any length, so I was trying to find a way to return an array containing the received sysex. It's easy enough to internally store the sysex message received (ie tweaking the MIDI callback and MidiIn and increasing the array used to store incoming MIDI msg), but then when it's time to retrieve this array, well I'm a bit lost tbh. MidiMsg in midiio_rtmidi.cpp appears to be a union, and this makes things a bit trickier since I was thinking about having a member method that returns the sysex array (ie similar to SerialIO.getytes()). Does anyone have any idea about the best way to proceed here? Any help is really appreciated :) cheers, Mario

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Try out this VST instrument/effect chugin
by David Braun 11 Jan '21

11 Jan '21

I created a chugin for Windows that does VST effects and instruments all in one. https://github.com/ccrma/chugins/pull/47 Sample code: VST vst => dac; vst.loadPlugin("C:/VSTPlugIns/Serum_x64.dll"); <<< "num parameters: ", vst.getNumParameters() >>>; <<< "parameter 0 is named: ", vst.getParameterName(0) >>>; vst.loadPreset("serum_preset.fxp"); vst.setParameter(0, vst.getParameter(0)); while(true) { vst.noteOn(60, 1.); 200::ms => now; vst.noteOff(60, 0.); 250::ms => now; } Please checkout the branch (literally) and try it out! David

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Does a Std.system call block concurrency?
by federico lopez 01 Jan '21

01 Jan '21

Hi, Is the ChucK thread disrupted by the execution time of a Std.system script call? In the code below, sporking a fast script, e.g. Std.system("sleep 0"), there is no noticeable disruption, but sporking a time consuming version e.g. Std.system("sleep 3") there is a disruption in the other sporks. I'm trying to call R scripts using ChucK concurrency. // test code, run with --caution-to-the-wind command-line flag Noise n => Envelope e => dac; fun void metro() { while(true) { e.keyOn(); 10::ms => now; e.keyOff(); 990::ms => now; <<< now, "samples" >>>; } } fun void callSystem() { while(true) { Std.system("sleep 0"); // comment this to test //Std.system("sleep 3"); // uncomment this to test 1000::ms => now; } } spork~ metro(); spork~ callSystem(); while(true){10::ms => now;} // end test code

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Fifo with Chuck?
by Forrest Curo 28 Dec '20

28 Dec '20

This is a built-in feature in csound on linux, that you can send score lines to a fifo that csound -L will pick up and execute. With chuck, I can open a fifo as a file, read it, send it a line of numbers -- but as soon as chuck has read the last number, it reads the eof and stops working. Is there a way to halt just short of the eof? I suppose I could add a dummy value at the end... but is there something less clumsy available?

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64-bit Chugins on Windows?
by David Braun 01 Dec '20

01 Dec '20

I'm seeking help getting Chuck 1.4.0.1 to recognize a chugin that I've compiled with CMake. I've compiled chuck.exe from source and confirmed that it's 64-bit with chuck --version. I've also compiled the chugin as 64-bit. When I do all those steps as 32-bit, the chugin works. However, for 64-bit, chuck can't load the chugin. I've tested with miniaudicle and from command line. I'm using CMake on Windows to make the chugin. Hopefully a missing compile flag etc isn't causing the issue. More details are here: https://github.com/ccrma/chugins/issues/45 Thank you!

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MidiFileIn class
by David Loberg Code 24 Oct '20

24 Oct '20

Can anyone point me to documentation on the use of the MidiFileIn class? I know that it has member functions such as .open(), .read(), .rewind(), etc., but am looking for examples of how you would use it to read and play a MIDI file in ChucK. Santé, davd ----------------- David Loberg Code School of Music Western Michigan code(a)wmich.edu any pronouns

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Ambisonics library
by mario buoninfante 24 Oct '20

24 Oct '20

Hi all, Does anybody know of an Ambisonics library for ChucK (ie chugins)? I'm particularly interested in the /decoder/ side of the thing :) Cheers, Mario -- electronic musician, sound artist, creative coder, QA engineer https://vimeo.com/creativecodingsalerno http://mbuoninfante.tumblr.com/ https://github.com/mariobuoninfante

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miniAudicle ADC not working?
by Eddie Ludema 20 Oct '20

20 Oct '20

Hi! I’m taking my first foray into ChucK with a little background with RTcmix, and am excited to see how many times I can accidently blow out my eardrums! I’m hoping to start up a LORK, and am wondering if ChucK would work for our situation – or at least part of the project. ADC… It works great in the terminal (MacOS Catalina). I just have a little throughput signal: adc => dac; while (true) { 100::ms => now; } In the terminal, it works great. No problems. In miniAudicle, I get nothing. The dac works in miniAudicle, but nothing is coming in through my mic (Scarlett 2i2). I hooked up a blackhole (adc => Gain g => blackhole) to monitor the adc input, but it just reports 0.0. I’ve checked my prefs, and my Scarlett is chosen. I’ve closed and reopened miniAudicle, and shut down and restarted the Virtual Machine. No ADC input. When I try to probe my devices, I get: System error: (CoreAudio unknown error) getting sample rate info… Then nada. I’ve also “allowed mic access” in Security/Privacy. Any suggestions? Is this a “Catalina breaks lots of stuff” bug? THANKS! Eddie

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spork~ () => foo => bar;
by federico lopez 09 Oct '20

09 Oct '20

Hi, >From the manual today I learn that functions can be called in a row with: () => foo => bar; I would like directly spork functions in a row, is there a way to do something like: spork~ () => foo => bar; I can spork an extra function to make the call Thanks, federico Sample code: // ==== 200::ms => dur beat; [8, 4] @=> int parts[]; fun void foo() { <<< "playing foo" >>>; parts[0] * beat => now; } fun void bar() { <<< "playing bar" >>>; parts[1] * beat => now; } // spork~ () => foo => bar; // "only function calls can be sporked" error // extra function to make the call fun void testPlay() { () => foo => bar; } spork~ testPlay(); while(true) 200::ms => now;

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