Standard Test Method for Objective Measurement of the Speech Privacy Provided by a Closed Room

Importancia y uso:

5.1 This test method provides a means of measuring the sound isolation between the interior of a closed room and locations outside the room, and also for measuring the background noise levels at the locations outside the room. The results can be used to rate the degree of speech privacy by estimating the probability of speech being audible or intelligible at each receiving point as discussed in the informative Appendix X2.

5.2 People speak at different voice levels and also vary their voice level in reaction to room noise and other acoustical factors. Consequently, it is not possible to say definitely whether a room is protected against eavesdropping. One can only assign a probability of being overheard. The owners or managers of the closed room under consideration must set criteria for this probability according to their specific goals and circumstances. The non-mandatory Appendix X2 gives an approach to setting criteria.

Subcomité:

E33.02

Referida por:

E1374-18E01, C0634-22

Volúmen:

04.06

Número ICS:

91.120.20 (Acoustics in buildings. Sound insulation)

Palabras clave:

speech privacy; speech security;