diff -r 7ebf49d0aec3 -r cbaeb0721138 AbstractOperatingSystem.st
--- a/AbstractOperatingSystem.st	Sat May 19 13:40:27 2018 +0200
+++ b/AbstractOperatingSystem.st	Sat May 19 14:04:29 2018 +0200
@@ -6592,9 +6592,7 @@
 !
 
 playSound:fileName mode:modeInteger
-    "unsupported - simply stay silent"
-
-    ^ self.
+    self playSound:fileName
 !
 
 speak:aString