Why can I not hear the sound

Hello. In the unity3D Car tutorial, I can’t hear the motor sounds of the car, the crash sound when I git something I can here… WHY? What can I do to fix this?
In the unity3D Editor I hear every sounds of the car but when I build it in webplayer and start it, I can not hear the motorsound, but all other sounds. This can not be normal and I dont know where can be the problem. Please, I need help!:slight_smile:

The game is playable here: Game Jolt - Share your creations

Check if you have a sound listener attatched to your main camera.