For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AMPLIFIED SOUND. Any sound using amplifying equipment, whose source is outside or whose source is inside and the sound propagates to the outside or to other dwellings or interior locations under separate ownership or occupancy.
A-WEIGHTED SOUND LEVEL. The sound pressure level in decibels as measured on a sound level meter using the A-weighing network. The level so read is designated dB(A).
DECIBEL (dB). A unit for describing the amplitude of sound, equal to 20 times the logarithm to the base ten of the ratio of the pressure of the sound measured to the reference pressure, which is 20 micronewtons per square meter.
EMERGENCY WORK. Any work performed for the purpose of preventing or alleviating physical trauma or property damage threatened or caused by an existing or imminent peril.
MOTOR VEHICLE or VEHICLE. Any vehicle propelled on land by a motor, such as, but not limited to, passenger cars, trucks, truck-trailers, semi-trailers, campers, go-carts, automobiles, motorcycles or buses. It shall exclude trains and emergency response vehicles, such as police, fire and rescue vehicles.
NOISE. Unreasonably loud, disturbing sound levels taking into consideration the volume, duration, frequency and other characteristics of the sound.
NOISE CONTROL OFFICER. Any police officer or other person so designated by the Town Board or the Mayor.
PERSON. Any individual, association, partnership or corporation including any officer, employee, department, agency or instrumentally of the United States, the state or any political subdivision thereof.
SLOW RESPONSE. A measuring technique to obtain an average value when measuring a noise level that fluctuates over a range of four dB or more. By way of illustration only, a sound level meter set on SLOW RESPONSE would record a sound level between two and six decibels less than the reading for a steadying signal of the same frequency and amplitude when a tone of 1,000 Hz and for a duration of one-half second is applied.
SOUND. An oscillation in pressure, particle displacement, particle velocity or other physical parameter, in a medium with internal forces that causes compression, and rarefaction of that medium. The description of SOUND may include any characteristic of the sound, including duration, intensity and frequency.
SOUND LEVEL. The weighted sound pressure level obtained by the use of a sound level meter and frequency weighing network, such as A, B or C as specified in American National Standards Institute Specifications for sound level meters (ANSI S1.41971 or the latest approved version thereof). If the frequency weighing employed is not indicated, the A-weighing shall apply.
SOUND-LEVEL METER. An instrument which includes a microphone, amplifier, RSM detector, integrator or time average, output meter and weighing network used to measure sound pressure levels.
SOUND PRESSURE LEVEL. Twenty times the logarithms to the base ten of the ratio of the root mean squared (RMS) sound pressure to the reference pressure of 20 micronewtons per square meter.
(Ord. passed - -)