This sound is from A Very Potter Musical Soundboard

A Very Potter Musical (originally titled Harry Potter: The Musical and often shortened to AVPM) is a musical with music and lyrics by Darren Criss and A. J. Holmes and a book by Matt Lang, Nick Lang and Brian Holden. The story is a parody, based on several of the Harry Potter novels by J. K. Rowling (particularly Harry Potter and the Philosopher's Stone, Harry Potter and the Goblet of Fire and Harry Potter and the Deathly Hallows), as well as their film adaptations.