// WARNNG: This sketch is too big to fit on an ESP32 w/o PSRAM ! #include "AudioTools.h" #include "AudioTools/AudioLibs/MaximilianDSP.h" #include "libs/maxim.h" // Define Arduino output I2SStream out; Maximilian maximilian(out); // Maximilian maxiOsc mySine, myPhasor; // This is the oscillator we will use to generate the test tone maxiFFT myFFT; void setup() { // setup logging Serial.begin(115200); AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info); // setup audio output auto cfg = out.defaultConfig(TX_MODE); out.begin(cfg); maximilian.begin(cfg); // setup maximilian myFFT.setup(512, 512, 256); } void play(float *output) { float myOut=mySine.sinewave(myPhasor.phasorBetween(0.2,100,5000)); //output[0] is the left output. output[1] is the right output if (myFFT.process(myOut)) { //if you want you can mess with FFT frame values in here } output[0]=myOut;//simple as that! output[1]=output[0]; } // Arduino loop void loop() { maximilian.copy(); }