1) Blasts 2) Brassy noises 3) Cranks the volume 4) Gives a clarion call 5) Leans on the horn 6) Loud noises 7) Loud sounds 8) Loud, brassy sounds 9) Loud, raucous sounds 10) Loud, strident noises 11) Loudly proclaims 12) Makes a racket 13) Overpowers the speakers 14) Plays at maximum volume 15) Plays loudly 1) Trumpets