diff --git a/Moose Development/Moose/Core/SoundFile.lua b/Moose Development/Moose/Core/SoundFile.lua
deleted file mode 100644
index 85e7745ac..000000000
--- a/Moose Development/Moose/Core/SoundFile.lua	
+++ /dev/null
@@ -1,110 +0,0 @@
---- **Core** - Sound file
---
--- ===
--- 
--- ## Features:
--- 
---   * Add a sound file to the 
--- 
--- ===
--- 
--- ### Author: **funkyfranky**
--- 
--- ===
--- 
--- @module Core.UserFlag
--- @image Core_Userflag.JPG
--- 
-
-do -- Sound File
-
-  --- @type SOUNDFILE
-  -- @field #string ClassName Name of the class
-  -- @field #string Name Name of the flag.
-  -- @extends Core.Base#BASE
-
-
-  --- Management of DCS User Flags.
-  -- 
-  -- # 1. USERFLAG constructor
-  --   
-  --   * @{#USERFLAG.New}(): Creates a new USERFLAG object.
-  -- 
-  -- @field #SOUNDFILE
-  SOUNDFILE={
-    ClassName = "SOUNDFILE",
-    Name      = nil,
-  }
-  
-  --- Constructor.
-  -- @param #SOUNDFILE self
-  -- @param #string UserFlagName The name of the userflag, which is a free text string.
-  -- @return #SOUNDFILE
-  function SOUNDFILE:New( UserFlagName ) --R2.3
-  
-    local self=BASE:Inherit(self, BASE:New()) -- #SOUNDFILE
-
-    self.UserFlagName = UserFlagName
-
-    return self
-  end
-
-  --- Get the userflag name.
-  -- @param #USERFLAG self
-  -- @return #string Name of the user flag.
-  function USERFLAG:GetName()    
-    return self.UserFlagName
-  end  
-
-  --- Set the userflag to a given Number.
-  -- @param #USERFLAG self
-  -- @param #number Number The number value to be checked if it is the same as the userflag.
-  -- @param #number Delay Delay in seconds, before the flag is set.
-  -- @return #USERFLAG The userflag instance.
-  -- @usage
-  --   local BlueVictory = USERFLAG:New( "VictoryBlue" )
-  --   BlueVictory:Set( 100 ) -- Set the UserFlag VictoryBlue to 100.
-  --   
-  function USERFLAG:Set( Number, Delay ) --R2.3
-  
-    if Delay and Delay>0 then
-      self:ScheduleOnce(Delay, USERFLAG.Set, self, Number)
-    else
-      --env.info(string.format("Setting flag \"%s\" to %d at T=%.1f", self.UserFlagName, Number, timer.getTime()))
-      trigger.action.setUserFlag( self.UserFlagName, Number )
-    end
-    
-    return self
-  end  
-
-  
-  --- Get the userflag Number.
-  -- @param #USERFLAG self
-  -- @return #number Number The number value to be checked if it is the same as the userflag.
-  -- @usage
-  --   local BlueVictory = USERFLAG:New( "VictoryBlue" )
-  --   local BlueVictoryValue = BlueVictory:Get() -- Get the UserFlag VictoryBlue value.
-  --   
-  function USERFLAG:Get() --R2.3
-    
-    return trigger.misc.getUserFlag( self.UserFlagName )
-  end  
-
-  
-  
-  --- Check if the userflag has a value of Number.
-  -- @param #USERFLAG self
-  -- @param #number Number The number value to be checked if it is the same as the userflag.
-  -- @return #boolean true if the Number is the value of the userflag.
-  -- @usage
-  --   local BlueVictory = USERFLAG:New( "VictoryBlue" )
-  --   if BlueVictory:Is( 1 ) then
-  --     return "Blue has won"
-  --   end
-  function USERFLAG:Is( Number ) --R2.3
-    
-    return trigger.misc.getUserFlag( self.UserFlagName ) == Number
-    
-  end  
-
-end
\ No newline at end of file
diff --git a/Moose Development/Moose/Modules.lua b/Moose Development/Moose/Modules.lua
index c4bb9eb87..06f53d723 100644
--- a/Moose Development/Moose/Modules.lua	
+++ b/Moose Development/Moose/Modules.lua	
@@ -6,7 +6,6 @@ __Moose.Include( 'Scripts/Moose/Utilities/Templates.lua' )
 
 __Moose.Include( 'Scripts/Moose/Core/Base.lua' )
 __Moose.Include( 'Scripts/Moose/Core/UserFlag.lua' )
-__Moose.Include( 'Scripts/Moose/Core/UserSound.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Report.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Scheduler.lua' )
 __Moose.Include( 'Scripts/Moose/Core/ScheduleDispatcher.lua' )
@@ -21,9 +20,6 @@ __Moose.Include( 'Scripts/Moose/Core/Point.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Velocity.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Message.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Fsm.lua' )
-__Moose.Include( 'Scripts/Moose/Core/Radio.lua' )
-__Moose.Include( 'Scripts/Moose/Core/RadioQueue.lua' )
-__Moose.Include( 'Scripts/Moose/Core/RadioSpeech.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Spawn.lua' )
 __Moose.Include( 'Scripts/Moose/Core/SpawnStatic.lua' )
 __Moose.Include( 'Scripts/Moose/Core/Timer.lua' )
@@ -113,6 +109,13 @@ __Moose.Include( 'Scripts/Moose/Actions/Act_Route.lua' )
 __Moose.Include( 'Scripts/Moose/Actions/Act_Account.lua' )
 __Moose.Include( 'Scripts/Moose/Actions/Act_Assist.lua' )
 
+__Moose.Include( 'Scripts/Moose/Sound/UserSound.lua' )
+__Moose.Include( 'Scripts/Moose/Sound/SoundFile.lua' )
+__Moose.Include( 'Scripts/Moose/Sound/Radio.lua' )
+__Moose.Include( 'Scripts/Moose/Sound/RadioQueue.lua' )
+__Moose.Include( 'Scripts/Moose/Sound/RadioSpeech.lua' )
+__Moose.Include( 'Scripts/Moose/Sound/SRS.lua' )
+
 __Moose.Include( 'Scripts/Moose/Tasking/CommandCenter.lua' )
 __Moose.Include( 'Scripts/Moose/Tasking/Mission.lua' )
 __Moose.Include( 'Scripts/Moose/Tasking/Task.lua' )
diff --git a/Moose Development/Moose/Core/Radio.lua b/Moose Development/Moose/Sound/Radio.lua
similarity index 100%
rename from Moose Development/Moose/Core/Radio.lua
rename to Moose Development/Moose/Sound/Radio.lua
diff --git a/Moose Development/Moose/Core/RadioQueue.lua b/Moose Development/Moose/Sound/RadioQueue.lua
similarity index 93%
rename from Moose Development/Moose/Core/RadioQueue.lua
rename to Moose Development/Moose/Sound/RadioQueue.lua
index a63677a98..3e6afcd51 100644
--- a/Moose Development/Moose/Core/RadioQueue.lua	
+++ b/Moose Development/Moose/Sound/RadioQueue.lua	
@@ -1,4 +1,4 @@
---- **Core** - Queues Radio Transmissions.
+--- **Sound** - Queues Radio Transmissions.
 -- 
 -- ===
 -- 
@@ -10,8 +10,8 @@
 --
 -- ### Authors: funkyfranky
 --
--- @module Core.RadioQueue
--- @image Core_Radio.JPG
+-- @module Sound.RadioQueue
+-- @image Sound_Radio.JPG
 
 --- Manages radio transmissions.
 -- 
@@ -125,9 +125,9 @@ function RADIOQUEUE:Start(delay, dt)
 
   -- Start Scheduler.
   if self.schedonce then
-    self:_CheckRadioQueueDelayed(delay)
+    self:_CheckRadioQueueDelayed(self.delay)
   else
-    self.RQid=self.scheduler:Schedule(nil, RADIOQUEUE._CheckRadioQueue, {self}, delay, dt)
+    self.RQid=self.scheduler:Schedule(nil, RADIOQUEUE._CheckRadioQueue, {self}, self.delay, self.dt)
   end
   
   return self
@@ -202,7 +202,7 @@ end
 --- Add a transmission to the radio queue.
 -- @param #RADIOQUEUE self
 -- @param #RADIOQUEUE.Transmission transmission The transmission data table. 
--- @return #RADIOQUEUE self The RADIOQUEUE object.
+-- @return #RADIOQUEUE self
 function RADIOQUEUE:AddTransmission(transmission)
   self:F({transmission=transmission})
   
@@ -221,7 +221,7 @@ function RADIOQUEUE:AddTransmission(transmission)
   return self
 end
 
---- Add a transmission to the radio queue.
+--- Create a new transmission and add it to the radio queue.
 -- @param #RADIOQUEUE self
 -- @param #string filename Name of the sound file. Usually an ogg or wav file type.
 -- @param #number duration Duration in seconds the file lasts.
@@ -233,6 +233,8 @@ end
 -- @return #RADIOQUEUE self The RADIOQUEUE object.
 function RADIOQUEUE:NewTransmission(filename, duration, path, tstart, interval, subtitle, subduration)
 
+  env.info("FF new transmission.")
+
   -- Sanity checks.
   if not filename then
     self:E(self.lid.."ERROR: No filename specified.")
@@ -272,6 +274,19 @@ function RADIOQUEUE:NewTransmission(filename, duration, path, tstart, interval,
   return self
 end
 
+--- Create a new transmission and add it to the radio queue.
+-- @param #RADIOQUEUE self
+-- @param Sound.SoundFile#SOUNDFILE soundfile Sound file object to be added.
+-- @param #number tstart Start time (abs) seconds. Default now.
+-- @param #number interval Interval in seconds after the last transmission finished.
+-- @return #RADIOQUEUE self
+function RADIOQUEUE:AddSoundfile(soundfile, tstart, interval)
+  env.info(string.format("FF add soundfile: name=%s%s", soundfile:GetPath(), soundfile:GetFileName()))
+  self:NewTransmission(soundfile:GetFileName(), soundfile.duration, soundfile:GetPath(), tstart, interval, soundfile.subtitle, soundfile.subduration)
+
+  return self
+end
+
 --- Convert a number (as string) into a radio transmission.
 -- E.g. for board number or headings.
 -- @param #RADIOQUEUE self
@@ -292,7 +307,7 @@ function RADIOQUEUE:Number2Transmission(number, delay, interval)
   end
   
   -- Split string into characters.
-  local numbers=_split(number)
+  local numbers=UTILS.GetCharacters(number) --l_split(number)
 
   local wait=0    
   for i=1,#numbers do
@@ -547,7 +562,7 @@ function RADIOQUEUE:_GetRadioSender()
   return nil
 end
 
---- Get unit from which we want to transmit a radio message. This has to be an aircraft for subtitles to work.
+--- Get unit from which we want to transmit a radio message. This has to be an aircraft or ground unit for subtitles to work.
 -- @param #RADIOQUEUE self
 -- @return DCS#Vec3 Vector 3D.
 function RADIOQUEUE:_GetRadioSenderCoord()
diff --git a/Moose Development/Moose/Core/RadioSpeech.lua b/Moose Development/Moose/Sound/RadioSpeech.lua
similarity index 100%
rename from Moose Development/Moose/Core/RadioSpeech.lua
rename to Moose Development/Moose/Sound/RadioSpeech.lua
diff --git a/Moose Development/Moose/AddOns/SRS.lua b/Moose Development/Moose/Sound/SRS.lua
similarity index 100%
rename from Moose Development/Moose/AddOns/SRS.lua
rename to Moose Development/Moose/Sound/SRS.lua
diff --git a/Moose Development/Moose/Sound/SoundFile.lua b/Moose Development/Moose/Sound/SoundFile.lua
new file mode 100644
index 000000000..f1a759cbb
--- /dev/null
+++ b/Moose Development/Moose/Sound/SoundFile.lua	
@@ -0,0 +1,138 @@
+--- **Sound** - Sound file management.
+--
+-- ===
+-- 
+-- ## Features:
+-- 
+--   * Add a sound file to the 
+-- 
+-- ===
+-- 
+-- ### Author: **funkyfranky**
+-- 
+-- ===
+-- 
+-- @module Sound.Soundfile
+-- @image Sound_Soundfile.png
+-- 
+
+do -- Sound File
+
+  --- @type SOUNDFILE
+  -- @field #string ClassName Name of the class
+  -- @field #string filename Name of the flag.
+  -- @field #string path Directory path, where the sound file is located.
+  -- @field #string duration Duration of the sound file in seconds.
+  -- @field #string subtitle Subtitle of the transmission.
+  -- @field #number subduration Duration in seconds how long the subtitle is displayed.
+  -- @field #boolean insideMiz If true (default), the sound file is located inside the mission .miz file.
+  -- @extends Core.Base#BASE
+
+
+  --- Sound files used by other classes.
+  -- 
+  -- # 1. USERFLAG constructor
+  --   
+  --   * @{#USERFLAG.New}(): Creates a new USERFLAG object.
+  -- 
+  -- @field #SOUNDFILE
+  SOUNDFILE={
+    ClassName   = "SOUNDFILE",
+    filename    =  nil,
+    path        = "l10n/DEFAULT",
+    duration    =    3,
+    subtitle    =   nil,
+    subduration =   0,
+    insideMiz   = true,
+  }
+  
+  --- Constructor to create a new SOUNDFILE object.
+  -- @param #SOUNDFILE self
+  -- @param #string filename The name of the sound file, e.g. "Hello World.ogg".
+  -- @param #string Path The path of the directory, where the sound file is located. Default is "l10n/DEFAULT/" within the miz file.
+  -- @param #number Duration Duration in seconds, how long it takes to play the sound file. Default is 3 seconds.
+  -- @return #SOUNDFILE self
+  function SOUNDFILE:New(filename, Path, Duration)
+  
+    -- Inherit BASE.
+    local self=BASE:Inherit(self, BASE:New()) -- #SOUNDFILE
+
+    -- Set file name.
+    self.filename=filename or "Hallo World.ogg"
+    
+    -- Set path
+    self.path=Path or "l10n/DEFAULT/"
+    
+    self.duration=Duration or 3
+    
+    -- Debug info:
+    self:I(string.format("New SOUNDFILE: file name=%s, path=%s", self.filename, self.path))
+
+    return self
+  end
+  
+  --- Set path, where the .
+  -- @param #SOUNDFILE self
+  -- @param #string Path Path to the directory, where the sound file is located.
+  -- @return self
+  function SOUNDFILE:SetPath(Path)
+    
+    self.path=Path or "l10n/DEFAULT/"
+    
+    while self.path:sub(-1)=="/" or self.path:sub(-1)=="\\" do
+      self.path=self.path:sub(1,-1)
+    end
+    
+    return self
+  end  
+  
+
+  --- Get the sound file name.
+  -- @param #SOUNDFILE self
+  -- @return #string Name of the soud file. This does *not* include its path.
+  function SOUNDFILE:GetFileName()    
+    return self.filename
+  end
+  
+  --- Get path of the directory, where the sound file is located.
+  -- @param #SOUNDFILE self
+  -- @return #string Path.
+  function SOUNDFILE:GetPath()
+    local path=self.path or "l10n/DEFAULT"
+    path=path.."/"    
+    return path
+  end
+
+  --- Get the complete sound file name inlcuding its path.
+  -- @param #SOUNDFILE self
+  -- @return #string Name of the sound file.
+  function SOUNDFILE:GetName()
+    local filename=self:GetFileName()
+    local path=self:GetPath()
+    local name=string.format("%s/%s", path, filename)
+    return name
+  end
+  
+
+  --- Set the userflag to a given Number.
+  -- @param #SOUNDFILE self
+  -- @param #number Number The number value to be checked if it is the same as the userflag.
+  -- @param #number Delay Delay in seconds, before the flag is set.
+  -- @return #SOUNDFILE self
+  -- @usage
+  --   local BlueVictory = USERFLAG:New( "VictoryBlue" )
+  --   BlueVictory:Set( 100 ) -- Set the UserFlag VictoryBlue to 100.
+  --   
+  function SOUNDFILE:Set( Number, Delay ) --R2.3
+  
+    if Delay and Delay>0 then
+      self:ScheduleOnce(Delay, USERFLAG.Set, self, Number)
+    else
+      --env.info(string.format("Setting flag \"%s\" to %d at T=%.1f", self.UserFlagName, Number, timer.getTime()))
+      trigger.action.setUserFlag( self.UserFlagName, Number )
+    end
+    
+    return self
+  end
+  
+end
\ No newline at end of file
diff --git a/Moose Development/Moose/Core/UserSound.lua b/Moose Development/Moose/Sound/UserSound.lua
similarity index 100%
rename from Moose Development/Moose/Core/UserSound.lua
rename to Moose Development/Moose/Sound/UserSound.lua
diff --git a/Moose Development/Moose/Utilities/Utils.lua b/Moose Development/Moose/Utilities/Utils.lua
index 3fd6e9482..af7642406 100644
--- a/Moose Development/Moose/Utilities/Utils.lua	
+++ b/Moose Development/Moose/Utilities/Utils.lua	
@@ -682,7 +682,10 @@ function UTILS.IsInSphere( InVec3, Vec3, Radius )
   return InSphere
 end
 
--- Beaufort scale: returns Beaufort number and wind description as a function of wind speed in m/s.
+--- Beaufort scale: returns Beaufort number and wind description as a function of wind speed in m/s.
+-- @param #number speed Wind speed in m/s.
+-- @return #number Beaufort number.
+-- @return #string Beauford wind description.
 function UTILS.BeaufortScale(speed)
   local bn=nil
   local bd=nil
@@ -742,6 +745,21 @@ function UTILS.Split(str, sep)
   return result
 end
 
+--- Get a table of all characters in a string.
+-- @param #string str Sting.
+-- @return #table Individual characters.
+function UTILS.GetCharacters(str)
+
+  local chars={}
+  
+  for i=1,#str do
+    local c=str:sub(i,i)
+    table.insert(chars, c)
+  end
+  
+  return chars
+end
+
 --- Convert time in seconds to hours, minutes and seconds.
 -- @param #number seconds Time in seconds, e.g. from timer.getAbsTime() function.
 -- @param #boolean short (Optional) If true, use short output, i.e. (HH:)MM:SS without day.
diff --git a/Moose Setup/Moose.files b/Moose Setup/Moose.files
index 79c9b120e..939bf7770 100644
--- a/Moose Setup/Moose.files	
+++ b/Moose Setup/Moose.files	
@@ -7,7 +7,6 @@ Utilities/Templates.lua
 
 Core/Base.lua
 Core/UserFlag.lua
-Core/UserSound.lua
 Core/Report.lua
 Core/Scheduler.lua
 Core/ScheduleDispatcher.lua
@@ -22,9 +21,6 @@ Core/Point.lua
 Core/Velocity.lua
 Core/Message.lua
 Core/Fsm.lua
-Core/Radio.lua
-Core/RadioQueue.lua
-Core/RadioSpeech.lua
 Core/Spawn.lua
 Core/SpawnStatic.lua
 Core/Timer.lua
@@ -114,6 +110,13 @@ Actions/Act_Route.lua
 Actions/Act_Account.lua
 Actions/Act_Assist.lua
 
+Sound/UserSound.lua
+Sound/SoundFile.lua
+Sound/Radio.lua
+Sound/RadioQueue.lua
+Sound/RadioSpeech.lua
+Sound/SRS.lua
+
 Tasking/CommandCenter.lua
 Tasking/Mission.lua
 Tasking/Task.lua