I don't know why the sound in my code isn't working.

This is my code. I don't know why the sound isn't working

keyPressed = function() {
background(151, 244, 247);
//these are the variables
var y = -200;
var x = 200;
var speed = 10;
//this draws the code inside of it over and over   
draw = function() {
    background(151, 244, 247);
    fill(255, 0, 0);
    ellipse(x, y, 70, 70);
    fill(255, 200, 0);
    ellipse(x - 15, y - 15, 10, 10);
    ellipse(x + 15, y - 15, 10, 10);  
    line( x - 15, y + 15, x + 15, y + 15);
    ellipse (x, y - 32, 70, 30);
    fill ( 255, 200, 0);
    ellipse ( x - 15, y + 30, 20, 20);
    ellipse ( x - 0, y + 30, 20, 20);
    ellipse ( x + 15, y + 30, 20, 20);
    ellipse ( x + 10, y + 40, 20, 20);
    ellipse ( x - 10, y + 40, 20, 20);
    ellipse ( x + 2, y + 50, 20, 20);
//this makes is move  
if(y > 350) {
   speed = -10;
  playSound(getSound ("rpg/hit-thud"));
}
if ( y < 50) { 
speed = 10;
playSound(getSound ("rpg/hit-thud"));
}

y = y + speed;

if(x > 350) { 
   speed = -10;
   playSound(getSound ("rpg/hit-thud"));
}
if ( x < 50) { 
speed = 10;
playSound(getSound ("rpg/hit-thud"));
}

x = x + speed;
};
};