Thompson D J, Robinette L N, Dunlop R J
Audiology. 1984;23(1):9-26. doi: 10.3109/00206098409072817.
Conduction of a broad-band signal from a supra-aural earphone to an acoustic-immittance instrument coupled to the contralateral ear canal was studied using three commercial immittance instruments. Results indicated that portions of the broad-band signal reached the contralateral ear canal at presentation levels of 100-110 dB SPL. At levels as low as 100 dB SPL, the signal was detected by at least one of the acoustic-immittance instruments. At higher sound pressure levels the transmitted signal caused deflections of the acoustic-immittance meter similar to those associated with an acoustic-reflex response. However, these artifacts could be differentiated from acoustic-reflex responses in several respects and could be prevented by high-pass filtering of the broad-band test signal.
使用三种商用声导抗仪器研究了从耳挂式耳机到与对侧耳道相连的声导抗仪器的宽带信号传导。结果表明，在100 - 110 dB SPL的呈现水平下，宽带信号的部分能量到达了对侧耳道。在低至100 dB SPL的水平时，至少有一种声导抗仪器检测到了该信号。在更高的声压水平下，传输的信号引起声导抗仪的偏转，类似于与声反射反应相关的偏转。然而，这些伪迹在几个方面可以与声反射反应区分开来，并且可以通过对宽带测试信号进行高通滤波来防止。
