Electroacoustics - Hearing aids - Part 7: Measurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes— 45 стр.
BS EN 60118-13. Electroacoustics. Hearing aids. Part 13. Requirements and methods of measurement for electromagnetic immunity to mobile digital wireless devices— 28 стр.
Electroacoustics. Simulators of human head and ear. 2 cm$u3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts— 18 стр.
Electroacoustics. Hearing aids. Methods of measurement of performance characteritics of hearing aids under simulated in situ working conditions— 36 стр.
Electroacoustics - Hearing aids - Part 7: Measurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes— 45 стр.
