audio sensor

const int soundPin = A4;

int highest = 0;

int previous = 0;

void setup() {

  // put your setup code here, to run once:

  Serial.begin(9600);

  pinMode(soundPin, INPUT);

}
void loop()
{

  int runningTotal = 0;

  for(int i = 0; i < 100; i++){

     runningTotal += analogRead(soundPin);
 delay(5);

  }

  int averageSound = runningTotal / 100;

  Serial.println(averageSound);



  if(averageSound > highest){

    highest = averageSound;

    previous = averageSound;

    Serial.println("Highest sound recorded!");

    return;

  }
if(averageSound > previous){

    Serial.println("Higer than last time");

  }else if(averageSound < previous){

    Serial.println("Lower than last time");

  } else{

    Serial.println("Same as last time");

  }
  previous = averageSound;
}