air conduction

Bone conduction extremely sensitive to sound the feelings of normal people mainly rely on air conduction.

骨传导声音极为敏感,对一般人的感情,主要是靠空气传导.

The paper presents the principle of hearing testing technology, such as air conduction test, bone conduction test, masking technology, double ear sonorous blance, short increment sensitivity index, and the audiometer as hearing testing tool.

本文介绍了主观听力测试中气导听阈、骨导听阈、掩盖、双耳交替响度平衡试验、短增量敏感度指数试验的测试原理，运作过程以及完成上述功能测试的仪器-电子听力计。

Results ( 1) It was calculated that the mean of air conduction hearing threshold of 500 、 1000 、 2000 、 3000 Hz on audiogram. The mean of the left is 13 dBHL and the mean of the right ear is 12 dBHL.

结果（1）计算听力图上500、1000、2000、3000Hz的平均气导听阈，320例的结果为左耳平均13dBHL，右耳平均12dBHL。

Results: 96% ( in 225 ears) were cured by stimulation. Audiometric tests showed that the air conduction threshold in speech frequency was increased 10~ 15dB from base. There was no one decreased.

结果：结果：刺激法修补，225例耳中96%愈合，纯音听力测试，显示语音频率气导阈，在原来的基础上提高10～15db，无一例听力下降者。