Compiling Faust code on Bela¶

We currently have beta support for Faust on Bela. Sorry, we do not have much documentation at the moment, but the below should be fine to get you started, whether or not you are familiar with Faust.

Go to http://faust.grame.fr/faustplayground and find some example patches in the BIBLIO and drop them on the playground, connect the audio output to preview in the browser, hit export->select Bela->exporter to build and then "telecharger" to download the compiled binary. This is also available through the online compiler http://faust.grame.fr/onlinecompiler/goto_codeC.php, from where you can also download the Bela architecture file created by Oli Larkin and Stéphane Letz.

To interface Bela's analog and digital in, you need to click the edit button on a patch to edit it. Unfortunately because of a bug you need to save the edited text to a .dsp file and then drag and drop it back on the playground page.

See the attached file as an example. You need to use the [BELA:ANALOG_0] or [BELA:DIGITAL_0] label , as in :

freq = hslider("[1]Frequency[BELA:ANALOG_0]", 440,460,1500,1):smooth(0.999);
pressure = hslider("[2]Pressure[style:knob][BELA:ANALOG_4]", 0.96, 0.2, 2.0, 0.01):smooth(0.999):min(0.99):max(0.2);
gate = hslider("[0]ON/OFF (ASR Envelope)[BELA:DIGITAL_0]",0,0,1,1);