How do i disable background sound when coll

i was tinkering around and still cant find a solution how can i disable a sound when the player collides with a nother object can someone help

trying to make the sound disable when you coll with the post sign like in sonic

found it Screenshot - 2edcbe183e3de89625fbe4ef05f671cd - Gyazo
Screenshot - 92c244b58721ec61b091c7e29757c4e4 - Gyazo