diff --git a/src/fenrirscreenreader/core/fenrirManager.py b/src/fenrirscreenreader/core/fenrirManager.py
index e519fe4b..281788c2 100644
--- a/src/fenrirscreenreader/core/fenrirManager.py
+++ b/src/fenrirscreenreader/core/fenrirManager.py
@@ -23,7 +23,10 @@ class fenrirManager():
                 raise RuntimeError('Cannot Initialize. Maybe the configfile is not available or not parseable')
         except RuntimeError:
             raise
-        self.environment['runtime']['outputManager'].playFrequence(500, 1, interrupt=True)
+        for m in range(1, 280):
+            if m % 4 ==0:
+                self.environment['runtime']['outputManager'].playFrequence(m * 40, 0.2, interrupt=True)
+                time.sleep(0.3)
         #self.environment['runtime']['outputManager'].presentText(_("Start Fenrir"), soundIcon='ScreenReaderOn', interrupt=True)
         signal.signal(signal.SIGINT, self.captureSignal)
         signal.signal(signal.SIGTERM, self.captureSignal)
diff --git a/src/fenrirscreenreader/core/outputManager.py b/src/fenrirscreenreader/core/outputManager.py
index bf1ce254..618923cb 100644
--- a/src/fenrirscreenreader/core/outputManager.py
+++ b/src/fenrirscreenreader/core/outputManager.py
@@ -310,9 +310,16 @@ class outputManager():
             self.env['runtime']['soundDriver'].setVolume(self.env['runtime']['settingsManager'].getSettingAsFloat('sound', 'volume'))
         except Exception as e:
             self.env['runtime']['debug'].writeDebugOut("outputManager.playSoundIcon::setVolume: " + str(e),debug.debugLevel.ERROR)
+        adjustVolume = 0.0
+        try:
+            adjustVolume = 1.0 - (frequence / 20000)
+        except:
+            pass
+        if adjustVolume > 9.0:
+            adjustVolume = 9.0
 
         try:
-            self.env['runtime']['soundDriver'].playFrequence(frequence, duration, interrupt)
+            self.env['runtime']['soundDriver'].playFrequence(frequence, duration, adjustVolume, interrupt)
             return True
         except Exception as e:
             self.env['runtime']['debug'].writeDebugOut("outputManager.playSoundIcon::playSoundFile: " + str(e),debug.debugLevel.ERROR)
diff --git a/src/fenrirscreenreader/core/soundDriver.py b/src/fenrirscreenreader/core/soundDriver.py
index 5427d559..b281ae82 100644
--- a/src/fenrirscreenreader/core/soundDriver.py
+++ b/src/fenrirscreenreader/core/soundDriver.py
@@ -21,7 +21,7 @@ class soundDriver():
         self.cancel()
         self._isInitialized = False
 
-    def playFrequence(self, frequence, duration, adjustVolume = 0, interrupt=True):
+    def playFrequence(self, frequence, duration, adjustVolume = 0.0, interrupt=True):
         if not self._initialized:
             return
         if interrupt:
diff --git a/src/fenrirscreenreader/soundDriver/debugDriver.py b/src/fenrirscreenreader/soundDriver/debugDriver.py
index 56c95a70..394bb7ab 100644
--- a/src/fenrirscreenreader/soundDriver/debugDriver.py
+++ b/src/fenrirscreenreader/soundDriver/debugDriver.py
@@ -23,7 +23,7 @@ class driver(soundDriver):
         self._initialized = False
         print('Sound Debug Driver: Shutdown')
 
-    def playFrequence(self, frequence, duration, adjustVolume = 0, interrupt=True):
+    def playFrequence(self, frequence, duration, adjustVolume = 0.0, interrupt=True):
         if not self._initialized:
             return    
         if interrupt:
diff --git a/src/fenrirscreenreader/soundDriver/genericDriver.py b/src/fenrirscreenreader/soundDriver/genericDriver.py
index 543359c4..e159fba3 100644
--- a/src/fenrirscreenreader/soundDriver/genericDriver.py
+++ b/src/fenrirscreenreader/soundDriver/genericDriver.py
@@ -26,19 +26,17 @@ class driver(soundDriver):
             self.frequenceCommand = 'play -q -v fenrirVolume -n -c1 synth fenrirDuration sine fenrirFrequence'
         self._initialized = True
 
-    def playFrequence(self, frequence, duration,  adjustVolume = 0, interrupt=True):
-        print('drin')
+    def playFrequence(self, frequence, duration,  adjustVolume = 0.0, interrupt=True):
         if not self._initialized:
             return
         if interrupt:
             self.cancel()
         popenFrequenceCommand = shlex.split(self.frequenceCommand)
         for idx, word in enumerate(popenFrequenceCommand):
-            word = word.replace('fenrirVolume', str(self.volume))
+            word = word.replace('fenrirVolume', str(self.volume * adjustVolume))
             word = word.replace('fenrirDuration', str(duration))
             word = word.replace('fenrirFrequence', str(frequence))
             popenFrequenceCommand[idx] = word
-        print(popenFrequenceCommand)
         self.proc = subprocess.Popen(popenFrequenceCommand, stdin=None, stdout=None, stderr=None, shell=False)
         self.soundType = 'frequence'
     def playSoundFile(self, filePath, interrupt = True):
diff --git a/src/fenrirscreenreader/soundDriver/gstreamerDriver.py b/src/fenrirscreenreader/soundDriver/gstreamerDriver.py
index 4a2ce2f7..6e6b1c37 100644
--- a/src/fenrirscreenreader/soundDriver/gstreamerDriver.py
+++ b/src/fenrirscreenreader/soundDriver/gstreamerDriver.py
@@ -92,13 +92,13 @@ class driver(soundDriver):
         self._player.set_property('uri', 'file://%s' % fileName)
         self._player.set_state(Gst.State.PLAYING)
 
-    def playFrequence(self, frequence, duration, adjustVolume = 0, interrupt=True):
+    def playFrequence(self, frequence, duration, adjustVolume = 0.0, interrupt=True):
         if not self._initialized:
             return
         if interrupt:
             self.cancel()
         duration = duration * 1000
-        self._source.set_property('volume', self.volume - adjustVolume)
+        self._source.set_property('volume', self.volume * adjustVolume)
         self._source.set_property('freq', frequence)
         self._pipeline.set_state(Gst.State.PLAYING)
         GLib.timeout_add(duration, self._onTimeout, self._pipeline)