Electroacoustics - Hearing aids - Part 15: Methods for characterising signal processing in hearing aids with a speech-like signal (IEC 60118-15:2012); German version EN 60118-15:2012— 33 стр.
Hearing aids; measurement of the performance characteristics of hearing aids for quality inspection for delivery purposes; identical with IEC 60118-7:1983
Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts (IEC 29/638/CD:2007)
