blare

(noun) a loud harsh or strident noise. Synonyms: blaring, cacophony, clamor, din.

(verb) make a strident sound. Synonyms: blast. Examples: "She tended to blast when speaking into a microphone."

(verb) make a loud noise. Synonyms: honk, beep, claxon, toot. Examples: "The horns of the taxis blared."