The following shall be exceptions to § 41-9.2:
(1) The use of sound amplifying devices for any program to be held in a public building sponsored by the city; and
(2) Any sound device which is wired into, built in, or made a part of a public building, which is used for any program authorized therein for which the public building has been specifically constructed or for which a specific type of program therein has been authorized by the department head.
(Sec. 13-35.3, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 40, Art. 7, § 40-7.3)