Code - LED Strip - Dim on noise

#define LEDstrip

void setup()
{
  pinMode(A1,INPUT); //SparkFun Electret Microphone Breakout connected to Analog Pin 7
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);

}

//this function will make the LED dim once the SparkFun Electret Microphone Breakout sends a 1 signal, and then returns to to recorded brightness.
void loop()
{
  boolean soundstate = digitalRead(A1);
  if (soundstate == 1) {
         analogWrite(11, 188);
         analogWrite(12, 255);
         analogWrite(13, 255);

         delay(10);
  }
  else{

    analogWrite(11,0);
    analogWrite(12,0);
    analogWrite(13,0);
  }
}