diff -r e347c3508f95 -r 0e3bf53dfe47 share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua
--- a/share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua	Sun Sep 15 15:54:43 2019 +0200
+++ b/share/hedgewars/Data/Scripts/Multiplayer/TechRacer.lua	Sun Sep 15 16:04:11 2019 +0200
@@ -949,6 +949,10 @@
 
 function onNewTurn()
 
+	SetSoundMask(sndStupid, false)
+	SetSoundMask(sndDrat, false)
+	SetSoundMask(sndBugger, false)
+
 	CheckForNewRound()
 	TryRepositionHogs()
 
@@ -1089,7 +1093,11 @@
 
 				AddCaption(string.format(loc("Time: %.1fs"), (trackTime/1000)), GetClanColor(GetHogClan(CurrentHedgehog)),capgrpMessage2)
 
+				-- Track completed, all waypoints touched!
 				if (CheckWaypoints() == true) then
+					SetSoundMask(sndStupid, true)
+					SetSoundMask(sndDrat, true)
+					SetSoundMask(sndBugger, true)
 					AdjustScores()
 					DisableTumbler()
 				end