July 2019 - chuck-users - lists.cs.princeton.edu

Expanding MIDI support
by Mario Buoninfante 05 Jul '19

05 Jul '19

Hi everybody, One month ago I got started with an Open Source project whose goal is to support some hardware on various platforms/environments/programming languages (Pd, SC, Processing, Lua, Python, JS, etc.) and of course my goal is to have ChucK on board as well (hopefully I'll share more info about the project in the next months). The only issue I've got at the moment is that I need to talk SysEx with these gears, and as you know ChucK doesn't deal with SysEx. I really care a lot about this project, mainly because it's open source and because will involve different communities (Pd, SC, JS, etc.) and would really love to include ChucK in this since is the tool I'm mainly using to experiment and make music and I truly believe has got something more than other languages/environments. Thus, since I'm not a C++ person, I decided I'll ask a colleague of mine (a C++ programmer) to help out with this, also because he'll get involved in the project for other reasons anyway. But before doing this I wanted to ask the developers and all those who are involved in maintaining ChucK, if there's any particular reason why SysEx messages are not currently supported. >From what I can see in the code (and after running few experiments) with the current architecture SysEx messages could be sent out (3 bytes at time though) but with a lot of limitations (didn't manage to receive SysEx messages though). Also, I think RtMidi doesn't gate us from doing that (there's just a flag used to 'turn on/off' SysEx communication). But it seems like there's nothing in place that allows to deal with MIDI messages bigger than 3 bytes and, from a "non-C++ person", it seems one way to fix this could potentially be to add a SysExIn/SysExOut and a SysExMsg classes that deal with these kind of MIDI messages. Of course there could be a lot of things I'm missing here, and that's why I'm asking you for some help, even before asking for other help :) Just to make sure there's nothing that prevents people from adding this functionality. Then, last but not the least, ChucK is an open source project and I love it. There are a lot of people working with it, and I was wondering whether or not this would be a feature people are after. Basically I'd like to hear from the community before even getting started with this. I hope this makes sense. Looking forward to hearing from you guys :) Cheers, Mario

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how to use MIDI clock in ChucK
by Michael Heuer 02 Jul '19

02 Jul '19

All, I'm curious how to use MIDI clock effectively in ChucK, in two main use cases: From a sample-rate-based timer in ChucK, how should I send out MIDI clock? while (true) { 10::ms => now; // send MIDI clock } or TimeSignature.common(120) @=> TimeSignature ts; while (true) { ts.e => now; // send MIDI clock } or (this one allows the caller to modify the tempo later) TimeSignature.common(120) @=> TimeSignature ts; ts.eighthProvider() @=> EighthProvider e; while (true) { e.evaluate() => now; // send MIDI clock } From receiving MIDI clock messages from an external source, how should one adjust the BPM in ChucK? MidiIn min; MidiMsg msg; TimeSignature.common(120) @=> TimeSignature ts; while (min.recv(msg)) { // if is clock … { /* new BPM */ => ts.tempo; } } I would imagine I would want to window over the last n clock messages to average? Thanks in advance, michael

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Looking for people from BR and South America
by Ana Paula Kelm Soares 02 Jul '19

02 Jul '19

Hi My name is Ana Paula, I'm from Brazil, and i just finished the kadenze course (in which I want to congratulate who made it, it's amazing). I'm an engineer but now I'm studying music production, and I'm really interested in using chuck. I'd like to ask if there are brasilians arround that use chuck, or even people from south america that have interest in making contact. People can e-mail me directly by anapaula.ksoares(a)gmail.com Thanks

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showing your screen during live coding
by Charlie 01 Jul '19

01 Jul '19

hey there, for those of you performing live, how do you show your screens? do you just project the screen with the audible? grateful for any tips! Charlie (NorthWoods) NorthWoods on Facebook <https://www.facebook.com/NorthWoods-live-codingelectronicaambient-230770441…>

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