Files
klubhaus-doorbell/libraries/audio-tools/examples/examples-dsp/examples-maximilian/20-FFT/20-FFT.ino
2026-02-16 19:05:11 -08:00

50 lines
1.1 KiB
C++

// 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();
}