Electroacoustics. Random-incidence and diffuse-field calibration of sound level meters Ingestion-build-156411 NOTE Some measurement methods defined

NOTE Some measurement methods defined in this document can be applied to headphones

infrequent and mostly unidirectional

The general requirements and technical conditions for inspection and delivery are specified in EN 1715-1

and handling

Electroacoustics. Random-incidence and diffuse-field calibration of sound level meters Ingestion-build-156411 NOTE Some measurement methods defined1 Scope 1. 1 This International Standard describes a free field calibration method for determining random incidence sensitivity levels of sound level meters. Additionally, the standard describes a diffuse field calibration method for determining diffuse field sensitivity levels. 1. 2 For the purpose of this International Standard, diffuse field sensitivity level may be used interchangeably with random incidence sensitivity level. Selection of