Except when authorized pursuant to a permit issued by the Director of Recreation, Director of Public Works or their designees, it is unlawful in any park or recreation center to operate a radio, television, stereo or any similar electronic or mechanical device capable of producing or emitting sound at a volume where the sound is audible at a distance greater than 150 feet from the point of emission. (Ord. 3322 § 1, 2014; Ord. 2651 § 1, 1995; Ord. 2172 § 2, 1986).