标准摘要
[中文适用范围]： 给出了在不需要非常高的精度或需要执行准确的自由场校准的条件时要添加到麦克风压力灵敏度级别的值，以便获得自由场灵敏度级别 [外文原描述]： Gives the values that are to be added to the pressure sensitivity level of a microphone in order to obtain the free-field sensitivity level when a very high accuracy is not called for or when conditions for carrying out an accurate free-field calibration are not available. The values given have been derived from measurements of the pressure and free-field sensitivity levels of a number of microphones carried out in accordance with IEC 60327 and IEC 60486 to which reference should be made concerning terminology, microphone preamplifier configurations, etc.
英文名称Values for the difference between free-field and pressure sensitivity levels for one-inch standard condenser microphones