diff --git a/index.js b/index.js
index 3eb6d34..e782490 100644
--- a/index.js
+++ b/index.js
@@ -8,10 +8,16 @@ const farts = [
 
 function playFart(fart) {
     fart.currentTime = 0;
+    fart.playbackRate = randomPlaybackRate();
+    fart.preservesPitch = false;
     fart.play();
     shaking = true;
 }
 
+function randomPlaybackRate(min = 0.98, max = 1.02) {
+    return Math.random() * (max - min) + min;
+}
+
 const eventsTable = [
     {
         onCount: 0,