diff --git a/android-sources/AndroidManifest.xml b/android-sources/AndroidManifest.xml
index 0413764..d4da551 100644
--- a/android-sources/AndroidManifest.xml
+++ b/android-sources/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<manifest package="com.itsblue.SpeedClimbingReactionTrainer" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="1.0" android:versionCode="1" android:installLocation="auto">
+<manifest package="com.itsblue.SpeedClimbingReactionTrainer" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="1.1" android:versionCode="3" android:installLocation="auto">
     <application android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:label="SpeedClimbingReactionTrainer" android:icon="@drawable/icon">
         <activity android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation" android:name="org.qtproject.qt5.android.bindings.QtActivity" android:label="SpeedClimbingReactionTrainer" android:screenOrientation="unspecified" android:launchMode="singleTop">
             <intent-filter>
diff --git a/qml/main.qml b/qml/main.qml
index 7856f4d..4be7fb2 100644
--- a/qml/main.qml
+++ b/qml/main.qml
@@ -19,7 +19,7 @@
 import QtQuick 2.9
 import QtQuick.Window 2.2
 import QtQuick.Controls 2.4
-import QtMultimedia 5.0
+import QtMultimedia 5.4
 import QtGraphicalEffects 1.0
 import QtQuick.Controls.Styles 1.4
 
@@ -58,29 +58,32 @@ Window {
         Item {
             id: soundsItm
 
-            SoundEffect {
+            MediaPlayer {
                 id: readySe
 
+                property bool playing: readySe.status === 6
+
                 source: "qrc:/sounds/ready_1.wav"
 
                 muted: app.state === "WAITING"
 
-                onPlayingChanged: {
-                    if(!playing && app.state === "RUNNING"){
+                onStopped: {
+                    if(app.state === "RUNNING"){
                         startSe.play()
                     }
                 }
             }
 
-            SoundEffect {
+            MediaPlayer {
                 id: startSe
 
+                property bool playing: startSe.status === 6
+
                 source: "qrc:/sounds/IFSC_STARTSIGNAL_SINE.wav"
 
                 muted: app.state === "WAITING"
 
-                onPlayingChanged: {
-                    if(!playing){
+                onStopped: {
                         app.startTime = new Date().getTime()
                         console.log("offset: ", new Date().getTime() - app.startTime)
 
@@ -89,11 +92,14 @@ Window {
                             app.state = "STOPPED"
                         }
                     }
-                }
+
             }
 
-            SoundEffect {
+            MediaPlayer {
                 id: failedSe
+
+                property bool playing: failedSe.status === 6
+
                 source: "qrc:/sounds/IFSC frequenzy conform false start sound.wav"
             }