Microphones and earphones for speech communications
NORMA vydána dne 8.3.2002
Označení normy: IEC 61842-ed.1.0
Datum vydání normy: 8.3.2002
Počet stran: 28
Přibližná hmotnost: 84 g (0.19 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy IEC
Applies to the microphone part and earphone part of handsets, headsets or earsets for speech communications, and also to the microphone units and earphone units of built-in handsets, headsets or earsets. Establishes definitions relating to these electroacoustic transducers, standardizes the characteristics to be specified and the relevant methods of measurement.