GB/T 25498.1-2010
Electroacoustics.Simulators of human head and ear.Part 1:Ear simulator for the calibration of supra-aural earphones (English Version)

Standard No.

GB/T 25498.1-2010

Language

Chinese, Available in English version

Release Date

2010

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 25498.1-2010

Replace

GB/T 7614-1987

Scope

This Part of GB/T 25498 specifies the construction and characteristics of ear simulators for the calibration of sound-leakage on-ear earphones for audiometry and telephonic electroacoustic measurements. The ear simulator specified in this part has a frequency range of 20 Hz to 10000 Hz.

GB/T 25498.1-2010 Referenced Document

• GB/T 20441.4-2006 Measurement microphones. Part 4: Specifications for working standard microphones

GB/T 25498.1-2010 history

• 2010 GB/T 25498.1-2010 Electroacoustics.Simulators of human head and ear.Part 1:Ear simulator for the calibration of supra-aural earphones
• 1987 GB/T 7614-1987 An artificial ear of wide band type for the calibration of earphones used in audiometry

GB/T 25498.1-2010 Electroacoustics.Simulators of human head and ear.Part 1:Ear simulator for the calibration of supra-aural earphones has been changed from GB/T 7614-1987 An artificial ear of wide band type for the calibration of earphones used in audiometry.

GB/T 25498.1-2010 -All Parts