diff --git a/public/js/app.js b/public/js/app.js
index 10adefd..62e70b5 100755
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -4705,14 +4705,9 @@ class SoundManager {
         audioObject.timeOffset = Helper.nonNull(options.timeOffset, audioObject.timeOffset, 0);
         this.channels[channel] = audioObject;
 
-        console.log(options);
-
         if (audioObject.muted){
             this.stop(channel);
         }
-        else if (Helper.isNotNull(options.muted) && options.muted === false){
-            // this.play(channel);
-        }
 
         return this.channels[channel];
     }
@@ -4731,7 +4726,6 @@ class SoundManager {
         this.stop(channel);
         this.set(audioOrOptions, channel);
 
-        console.log(this.channels[channel]);
         if (!this.channels[channel].muted) {
             let buffer = await this.channels[channel].loadedPromise;
             let source = this.context.createBufferSource();
@@ -4741,6 +4735,10 @@ class SoundManager {
             source.loop = this.channels[channel].loop;
             gain.gain.value = this.channels[channel].volume;
 
+            //to prevent gap in mp3-files
+            source.loopStart = 0.3;
+            source.loopEnd = buffer.duration-0.3;
+
             source.connect(gain);
             gain.connect(this.context.destination);
             source.start(0);
@@ -6341,7 +6339,7 @@ InitPromise.resolve(app).then(function(){
     let settingsManager = SettingsManager.getInstance();
 
     let soundManager = SoundManager.getInstance();
-    soundManager.play(SoundManager.CHANNELS.MUSIC, {audio: "sound/brightAndBeautifull__.wav", loop: true, volume: 0.6, muted: !settingsManager.getSetting("play-music", true)});
+    soundManager.play(SoundManager.CHANNELS.MUSIC, {audio: "sound/brightAndBeautifull__.mp3", loop: true, volume: 0.6, muted: !settingsManager.getSetting("play-music", true)});
 
     app.start(SynchronizeSite);
     Translator.setLanguage("de");
diff --git a/public/sound/brightAndBeautifull__.mp3 b/public/sound/brightAndBeautifull__.mp3
new file mode 100644
index 0000000..bc93faa
Binary files /dev/null and b/public/sound/brightAndBeautifull__.mp3 differ
diff --git a/src/js/init.js b/src/js/init.js
index b597655..0823aa4 100755
--- a/src/js/init.js
+++ b/src/js/init.js
@@ -61,7 +61,7 @@ InitPromise.resolve(app).then(function(){
     let settingsManager = SettingsManager.getInstance();
 
     let soundManager = SoundManager.getInstance();
-    soundManager.play(SoundManager.CHANNELS.MUSIC, {audio: "sound/brightAndBeautifull__.wav", loop: true, volume: 0.6, muted: !settingsManager.getSetting("play-music", true)});
+    soundManager.play(SoundManager.CHANNELS.MUSIC, {audio: "sound/brightAndBeautifull__.mp3", loop: true, volume: 0.6, muted: !settingsManager.getSetting("play-music", true)});
 
     app.start(SynchronizeSite);
     Translator.setLanguage("de");
diff --git a/src/js/lib/pwa-assets.js b/src/js/lib/pwa-assets.js
index 1f071c8..9a36f61 100755
--- a/src/js/lib/pwa-assets.js
+++ b/src/js/lib/pwa-assets.js
@@ -141,14 +141,9 @@ class SoundManager {
         audioObject.timeOffset = Helper.nonNull(options.timeOffset, audioObject.timeOffset, 0);
         this.channels[channel] = audioObject;
 
-        console.log(options);
-
         if (audioObject.muted){
             this.stop(channel);
         }
-        else if (Helper.isNotNull(options.muted) && options.muted === false){
-            // this.play(channel);
-        }
 
         return this.channels[channel];
     }
@@ -167,7 +162,6 @@ class SoundManager {
         this.stop(channel);
         this.set(audioOrOptions, channel);
 
-        console.log(this.channels[channel]);
         if (!this.channels[channel].muted) {
             let buffer = await this.channels[channel].loadedPromise;
             let source = this.context.createBufferSource();
@@ -177,6 +171,10 @@ class SoundManager {
             source.loop = this.channels[channel].loop;
             gain.gain.value = this.channels[channel].volume;
 
+            //to prevent gap in mp3-files
+            source.loopStart = 0.3;
+            source.loopEnd = buffer.duration-0.3;
+
             source.connect(gain);
             gain.connect(this.context.destination);
             source.start(0);
diff --git a/public/sound/brightAndBeautifull__.wav b/src/sound/brightAndBeautifull__.wav
similarity index 100%
rename from public/sound/brightAndBeautifull__.wav
rename to src/sound/brightAndBeautifull__.wav