§ 26-27. Definitions.

For the purposes of this chapter, the following words and phrases shall have the meanings respectively ascribed to them by this subsection:

A-weighted decibel means the sound level, in decibels, measured with a sound level meter using the A-weighting network or scale as specified in the ANSI S1.4-1983 (specification for sound level meters). The level so read shall be postscripted dB(A) or dBA.

Daytime means the local time of day between the hours of 7:00 a.m. and 11:00 p.m.

Decibel means a unit that describes the sound pressure level or intensity of sound. The sound pressure level in decibels is 20 times the logarithm to the base ten of the ratio of the pressure of the sound in microbars to a reference pressure of 0.0002 microbar; abbreviated dB.

Emergency means any occurrence or set of circumstances involving actual or imminent physical injury, illness or property damage which requires immediate action.

Emergency work means any work performed for the purpose of preventing or alleviating the physical injury, illness or property damage threatened or caused by an emergency.

Nighttime means the local time between the hours of 11:00 p.m. and 7:00 a.m.

Noise means any sound which annoys or disturbs humans or which causes or tends to cause an adverse psychological or physiological effect on humans.

Noise disturbance means any sound which:

(1)

Endangers or injures the safety or health of humans; or

(2)

Endangers or injures personal or real property.

Property means the smallest parcel of real estate owned or leased by the same person or persons.

Property line means an imaginary line along the ground surface, and its vertical extension, which separates the real estate, including the dwelling units within a structure owned or leased by one person, from that owned or leased by another person.

Sound means 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 such sound including duration, intensity, and frequency.

Sound generation means any conduct, activity or operation, whether human, mechanical, electronic or other, and whether continuous, intermittent or sporadic, and whether stationary or ambulatory in nature, which produces or results in a sound.

Sound level means the weighted sound pressure level obtained by the use of a sound level meter and the A-frequency weighting network, as specified in American National Standards Institute specifications for sound level meters.

Sound level meter means an instrument which includes a microphone, amplifier, RMS detector, integrator or time averager, output meter and weighting networks used to measure sound pressure levels.

(Ord. of 3-24-2015)

(Ord. of 3-24-2015)