SIS SS IEC 126-1985 音响效果．耳塞式助听器测量用IEC基准耦合器

标准号：SIS SS IEC 126-1985
中文标准名称：音响效果．耳塞式助听器测量用IEC基准耦合器
英文标准名称：Acoustics - IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
发布日期：1985/11/15 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：The object of this recommendation is to describe a coupler for loading the earphone with a specified acoustic impedance when determining the physical performance characteristics, in the frequency range 200 Hz to 5000 Hz, of air-conduction hearing aids using earphones coupledtothe ear by means of ear inserts, e.g. ear moulds or similar devices. The coupler described is a develop-ment of an earlier 2 cm3 coupler.The use of this coupler does not allow the actual performance of a hearing aid on a person to be obtained; however, the I EC recommends its use as a simple and ready means for the exchangeof specifications and of physical data on hearing aids.