Поиск

Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold sound…

Acoustics — Standard reference zero for the calibration of pure tone air conduction audiometers

Acoustics — Reference zero for the calibration of audiometric equipment — Part 1: Reference equivalent thresh…

Overview ISO 389-1:2017 - Acoustics - Reference zero for the calibration of audiometric equipment (Part 1) defines the reference equivalent threshold sound pressure levels (RETSPLs) used to calibrate…

Acoustics — Procedure for describing aircraft noise heard on the ground