For the purpose of this sub-chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.

• A-Scale (dBA). The sound level in decibels measured using the A-weighted network as specified in the American National Standard Specification for Sound Level Meters (ANSI S1.4-1971).
• Decibel (dB). A unit for measuring the volume of a sound.
• Noise Sensitive. Any authorized land use of a church, temple, synagogue, day care center, hospital, rest home, retirement home, group care home, school, dwelling unit (single-family dwelling, duplex, triplex, mult-ifamily dwelling, or mobile home) or other use of the same general type, and rights-of-way appurtenant thereto, whether publicly or privately owned.
• Plainly Audible Sound. Unambiguously communicated to the listener. Plainly Audtible Sounds include but are not limited to understandable musical rhythms, understandable spoken words and vocal sounds other than speech which are distinguishable as raised or normal.
• Sound Level Meter. A sound measuring device, either Type 1 or Type 2, as defined by American National Standard Specification for Sound Level Meters (ANSI S1.4-1971).
• Sound Producing Device. Any of the following:

(1) Loudspeakers, public address systems;

(2) Radios, tape recorders and/or tape players, phonographs, television sets, stereo systems, including those installed in a vehicle;

(3) Musical instruments, amplified or unamplified;

(4) Sirens, bells;

(5) Vehicle engines or exhausts, when the vehicle is not in a public right-of-way, particularly when the engine is operated above idling speed;

(6) Vehicle tires, when caused to squeal by speed or acceleration;

(7) Domestic tools, including electric drills, chainsaws, lawn mowers, electric saws, hammers and similar tools, but only between the hours of 6:00 p.m. and 7:00 a.m. of the following day;

(8) Vehicles inclusive of automobiles, motorcycles, motorbikes, trucks, buses, snowmobiles, boats or any similar piece of equipment equipped with a propelling device;

(9) Persons or animals causing sound to emanate.

(Ord. 1709, passed 6-25-90)