All terminology used in this chapter shall be in conformance with applicable publications of the American National Standards Institute (ANSI) or its successor body. For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
A-WEIGHTED SOUND LEVEL. The loudness of a sound measured through a filtering device intended to stimulate human hearing. The level is designated db(A) or dBA.
COMMERCIAL ZONE. Zones B-1, B-2, B-3, and OS-1.
DECIBEL (dB). A unit for measuring the sound pressure level of a sound.
FREQUENCY. An objective way to describe the pitch of sound.
HERTZ. A unit for measuring the frequency of a sound (sometimes called a CYCLES PER SECOND.)
INDUSTRIAL ZONE. I-1.
LIGHT MOTOR VEHICLE. Any motorized vehicle with gross vehicular weight less than 8,000 pounds, including automobiles, vans, motorcycles, motor-driven cycles, motor scooters, dune buggies, snowmobiles, all-terrain vehicles, go-karts, minibikes, trail bikes, and light trucks.
MODIFIED EXHAUST SYSTEM. Any exhaust system in which the original noise abatement device: have been removed, altered, or replaced to produce more noise.
NOISE. Any unwanted sound.
OCTAVE BAND. A way to divide the entire frequency range of sounds into sections for more accurate measurement.
PLAINLY AUDIBLE. Any noise for which the information content is ambiguously communicated to the listener, including understandable spoken speech, comprehension of whether a voice is raised, agitated, or normal, or comprehensible musical rhythms.
RESIDENTIAL ZONES. Zones R-1, R.2, and R-3.
SOUND LEVEL METER. An instrument designed to measure sound pressure levels.
SOUND PRESSURE LEVEL. An objective way to describe the loudness of a sound.
(Prior Code, § 94.01) (Ord. 1116A, passed 4-13-1993)