 void print_peaks(){ 
     Serial.println("3dB Bandwidth:");
     for(int i = 0 ; i < FFT_N/2; i++){
-      Serial.print(dB3[i]);
+      Serial.print(peak_power[i]);
       Serial.print(",");
     }
     Serial.println("");


//peak finding variables
const int number_of_peaks = 5;
const int noise_floor = 50;
int biggest_peaks[number_of_peaks];
int dB3[FFT_N/2];

//State Data
boolean is_microphone = true;
int down_sampling_rate = 5;

void setup() {
    // declare the ledPin as an OUTPUT:


  //Initialize peak arrays
    for (int i = 0; i<FFT_N/2;i++){
    peak_power[i] = 0;
  }
  
  for (int i = 1; i < FFT_N/2-1; i++){
