diff --git a/src/main/java/device/UsbPlayer.java b/src/main/java/device/UsbPlayer.java
index dc2b8d4..c3bca62 100644
--- a/src/main/java/device/UsbPlayer.java
+++ b/src/main/java/device/UsbPlayer.java
@@ -25,7 +25,11 @@ public class UsbPlayer implements Device {
 
     @Override
     public void quieter() {
-
+        if(Lautstaerke > 0) {
+            Lautstaerke -= 1;
+        } else {
+            Lautstaerke = 0;
+        }
     }
 
     @Override