how to make sound stop in all scene in unity

how to make sound stop in all scene in unity when i pressed a button…
ex: in an option menu i have on and off button…i want if i pressed off button…the audio will stop in all scene…and if i pressed on button it will play again(even if i change the scene) sorry im newbie with unity…just starting…:wink:

Set the AudioListener.volume to 0.