scope:

This Standard defines parameters for characterizing a sound system's coverage of defined listener areas. It provides performance classifications and measurement procedures to assess the uniformity of coverage of a sound system's early arriving sound, with the goal of achieving consistent sound pressure levels throughout defined listener areas.

The procedure associated with this Standard is one of many verifications of the deployment and performance of a sound system. This Standard specifically excludes testing or measuring for spectral balance, gain before feedback, maximum sound pressure level, and other parameters required to assess the total performance of a sound system.

Purpose 

The purpose of this performance Standard is to establish a method by which an audio system's coverage can be assessed and classified. This is accomplished by measuring the uniformity of coverage of the early arriving sound from the loudspeaker system(s) throughout the designated listener area(s).

Application 

The procedures described in this Standard are to be applied to sound reinforcement and audiovisual (AV) presentation systems. These systems are implemented in a variety of applications, including conference rooms, training rooms, classrooms, auditoria, theatres, houses of worship, and other venues where sound reinforcement is employed. Additionally, the metrics and classifications in this Standard may be used to establish design criteria for new systems