§ 13-8. Measurement of sound.

(a)

Sound shall be measured with a sound level analyzer.

(b)

The sound level shall be measured at a distance no closer than the real property line of the parcel or lot from which the sound is emanating.

(c)

A measurement period shall not be less than five (5) minutes, must be continuous, must be taken at the time when any noise source is occurring, and must report the Leq value for the time period.

(d)

A measurement shall be recorded so as to secure and ensure an accurate representation of the sound.

(e)

A measurement should be taken at approximately five (5) feet above the ground or surface away from any obstructing or reflecting surface.

(f)

A microphone windscreen shall be required to avoid wind noise biasing of a measurement.

(g)

All manufacturer's directions on the operation of the sound level analyzer shall be followed (e.g., proper microphone angle).

(h)

All sound level analyzers used for measurement shall be in conformance with ANSI S1.4-1983 or successor publications.

(i)

Instrumentation for sound level measurements shall be type 2 or better (ANSI S1.4-1971) and must be capable of reporting values for the equivalent sound level (Leq) in the units of dB, A-weighted (dB(A)).

(j)

All octave and third octave band filter sets of the sound level analyzer shall be in conformance with ANSI S1.11-1976 or successor publications.

(k)

Calibration of all instruments, components, and attachments shall conform to the latest ANSI standards.

(l)

Measurements for sound shall be made by individuals trained and certified in a noise measurement program.

(Ord. No. 99-2, § 1, 1-19-99; Ord. No. 15-08, § 1, 6-16-2015)