So i tested on Android, which is galaxy S2. i found this error messages in the log viewer :
[LOG] I/trace ( 7497): Script.hx:1875: No channels available to play sound
[LOG] I/trace ( 7497): Script.hx:1898: No channels available to loop sound
LOG] I/trace ( 7497): Script.hx:1875: No channels available to play sound
All the sounds were missing after a few minutes playing. Can someone help me?