A. 
No person shall cause, suffer, allow, or permit the operation of any source of sound on any source property listed in § 95-3A above in such a manner as to create a sound level that equals or exceeds the sound level limits set forth in Table I[1] and when measured at or within the real property boundary of any of the receiving properties listed in Table I, except as specified in Subsection B below.
[1]
Editor's Note: Table I is included at the end of this chapter.
B. 
When measuring total sound or residual sound within a multi-use property, or within a residential unit when the property line between it and the source property is a common wall, all exterior doors and windows shall be closed and the measurements shall be taken in the center of the room most affected by the noise. All sound within the dwelling unit must be shut off or removed and measurements shall only be taken in areas which receive more than casual or transitory use, such as hallways, closets and bathrooms.
C. 
Indoor measurements shall only be taken if the sound source is on or within the same property as the receiving property, as in the case of a multi-use property (e.g., sound generated within a commercial unit of a multi-use property building and received within a residential unit of the same building) or multi-unit dwelling unit building. The allowable sound level standards for indoors are shown in Table I.
A. 
Creating or causing the creation of any sound within any noise-sensitive zone designated by resolution of the Board of Supervisors, so as to disrupt the activities normally conducted within the zone, provided that conspicuous signs are displayed indicating the presence of the zone; or
B. 
Creating or causing the creation of any sound within any noise-sensitive zone, designated by resolution of the Board of Supervisors, containing a hospital, nursing home or similar activity, so as to interfere with the functions of such activity or disturb or annoy the patients in the activity, provided that conspicuous signs are displayed indicating the presence of the zone.
A. 
Personal or commercial vehicular amplification or reproduction equipment shall not be operated in such a manner that it is plainly audible at a residential property line between the hours of 10:00 p.m. and 7:00 a.m.
B. 
Personal vehicular music amplification equipment shall not be operated in such a manner as to be plainly audible at a distance of 50 feet in any direction from the operator between the hours of 7:00 a.m. and 10:00 p.m. Between the hours of 10:00 p.m. and 7:00 a.m., sound from such equipment shall not be plainly audible by any person other than the operator.
C. 
Self-contained, portable, hand-held music or sound amplification or reproduction equipment shall not be operated on a public space or public right-of-way in such a manner as to be plainly audible at a distance of 50 feet in any direction from the operator between the hours of 7:00 a.m. and 10:00 p.m. Between the hours of 10:00 p.m. and 7:00 a.m., sound from such equipment shall not be plainly audible by any person other than the operator.