Sound system equipment - Methods of measuring and specifying the performance of sounders (electroacoustic transducers for tone production)
声音系统设备 - 测量和指定声音器性能的方法(用于音调制作的电声转换器)
Applies to sounders which are treated as entirely passive electroacoustic transducer elements. Piezoelectric diaphragms, which are the principal components of piezoelectric sounders, are also included. Standardize the definitions relating to these electroacoustic transducers, lists characteristics to be specified and the relevant methods of measurement.