Nipples for insert earphones GB/T6661-1986插入式耳机的乳头状接头
ABR examination was performed by click sounds with sparse waves in a sound and electromagnetic shielding room, and insert earphones were used. The threshold results were judged according to the minimal stimulation sound intensity of the distinguishable ⅴ wave. 在声电磁屏蔽室内进行听性脑干诱发电位检查,采用刺激声为疏波短声,使用插入式耳机,阈值结果判定按取可辨别出Ⅴ波的最小刺激声强度。
Reference Equivalent Threshold Sound Pressure Levels for ER 3A Insert Earphones ER-3A插入式耳机的基准等效阈声压级测试