A report can be a loud noise. This is from Chambers - see last definition:
report or
vt to convey ; to bring back, as an answer, news or account of anything; to give an account of, esp a formal, official, or requested account; to state in such an account; to relate; to circulate publicly; to transmit as having been said, done or observed; to write down or take notes of, esp for a newspaper or radio or television programme; to lay a charge against; to echo back; (reflexive) to make personal announcement of the presence and readiness of.
vi to make a statement; to write an account of occurrences; to make a formal report; to report oneself; to act as a reporter.
n a statement of facts; a formal or official statement, such as of results of an investigation or matter referred; a statement on a school pupil's work and behaviour or the like; an account of a matter of news, esp the words of a speech; reporting, testimony (); general talk; rumour; hearsay; repute (); explosive noise.