miselaytes-anton / faust-echo

Simple echo effect using Faust on ESP32 board.

Faust echo

Simple echo effect using Faust on ESP32 board.

Set up

Follow this tutorial.

Build

1. First lets convert FaustEcho.dsp to FaustEcho.cpp

./faust.sh

2. Now we need a manual step. In FaustEcho.cpp we need to movefRec8 from mydsp class to the global scope, make it static and add EXT_RAM_ATTR to it, so that it becomes:

static float fRec8[262144] EXT_RAM_ATTR;

class mydsp : public dsp {
   // ...
}

3. Flash the micro controller:

./flash

Links

• https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/index.html
• espressif/arduino-esp32#595 (comment)

Todo

• possibly add a pot or use buttons to control volume