The up-to-date MIDI documentation is here: 
https://faustdoc.grame.fr/manual/midi/

HTH,

Stéphane 

> Le 24 sept. 2020 à 04:06, Thadeus Reed <t...@creativecontrol.cc> a écrit :
> 
> Hi Bob,
> 
> I'm not sure what your development setup is but I found it very helpful to 
> use the Web IDE when developing https://faust.grame.fr/ide/ . This has a 
> dropdown menu that lets you choose the MIDI input that controls your .dsp. I 
> believe this only works in Chrome because of the WebMIDI implementation. 
> 
> If you look at the tutorial 
> https://faust.grame.fr/doc/tutorials/#adding-an-envelope-generator it shows 
> the basic setup for a MIDI controlled synthesizer. The "gate", "freq", and 
> "gain" variables will be connected automatically to incoming MIDI "gate", 
> "midinote", and "velocity" respectively.
> 
> If you are outside of the IDE I believe you have to have MIDI enabled with 
> declare options "[midi:on]";
> and if you need polyphony
> declare options "[nvoices:12]";
> at the top of your .dsp file. There are more options explained in 
> https://faust.grame.fr/doc/manual/#midi-and-polyphony-support .
> 
> How you connect different MIDI controllers outside of the Web IDE will depend 
> a lot on which platform you are compiling the DSP for.
> 
> I hope that helps,
> Thadeus
> 
> http://www.creativecontrol.cc
> 
> 
> On Wed, Sep 23, 2020 at 5:43 PM Bob Bobsled <thebobbobs...@gmail.com> wrote:
> How does one play a .dsp instrument using an external usb midi keyboard?
> I would like to play the midi keyboard keys and hear the frequency associated 
> with the
> midi key being played.  Not a virtual keyboard, not a smartphone, but an 
> external usb keyboard.
> 
> I have tried various faust2scripts, but nothing seems to work.  I thought 
> perhaps faust doesn't do it; since the gate button is ubiquitous, and there 
> is next to nothing available for help using an external midi keyboard to 
> trigger frequencies.  A simple .dsp example would suffice, if someone is 
> willing to share.
> 
> 
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