diff --git a/internal_alarm.dfpwm b/internal_alarm.dfpwm
new file mode 100644
index 0000000..99d97b7
Binary files /dev/null and b/internal_alarm.dfpwm differ
diff --git a/pairity_main.lua b/pairity_main.lua
index 0ffed92..b5e51be 100644
--- a/pairity_main.lua
+++ b/pairity_main.lua
@@ -12,6 +12,9 @@ end
 
 local function startup()
   speakerDriver.startup()
+  speakerDriver.playControlRoomAlarm(controlRoomSpeakers)
+  speakerDriver.playExternalAlarm(controlRoomSpeakers)
+  speakerDriver.playInternalAlarm(controlRoomSpeakers)
 end
 
 local function run()
diff --git a/speaker_driver.lua b/speaker_driver.lua
index 3e27040..c07436a 100644
--- a/speaker_driver.lua
+++ b/speaker_driver.lua
@@ -29,6 +29,9 @@ end
 local function playExternalAlarm(speakers)
     playSound(speakers,"external_alarm")
 end
+local function playInternalAlarm(speakers)
+    playSound(speakers,"internal_alarm")
+end
 
 local function createSoundFile(fileName)
 
@@ -58,7 +61,8 @@ end
 local function startup()
         local sounds = {
         { fileName = "short_control_alarm" },
-        { fileName = "external_alarm" }
+        { fileName = "external_alarm" },
+        { fileName = "internal_alarm" }
     }
 
     for i, item in ipairs(sounds) do