ITU P.57:2011
ITU P.57:2011 Artificial Ears Specifies the electro acoustical characteristics of artificial ears to be used for telephonometric measurements.
Table of Contents
1Scopeandobject2References
3Definitions
4Abbreviationsandacronyms
5Artificialeartypes
AnnexA-Apracticalprocedurefordeterminationof
theacousticinputimpedanceofartificialears
AppendixI-Comparativeacousticalinputimpedance
measurementsontheartificialearsTypes
3.3and3.4andonhumanears
AppendixII-Illustrationofthemobilephone-shaped
impedanceprobeusedinAppendixI
Bibliography