Shanks J E, Wilson R H, Jones H C
J Speech Hear Res. 1985 Jun;28(2):305-8. doi: 10.1044/jshr.2802.305.
This research note describes an earphone-coupling technique that can be used to measure the temporal characteristics of acoustic-immittance instruments. The primary advantage of the earphone-coupling procedure in comparison with the procedure described by Popelka and Dubno (1978) is that the temporal measures are not contaminated by delays and irregularities in the coupler sound-pressure level associated with the pressure system. The latencies of two instruments (Grason-Stadler, Model 1723) were compared using this earphone-coupling procedure and the Popelka-Dubno procedure. The latency measures were in good agreement following a correction for the delay associated with the pressure tubing in the latter procedure. The technique described is offered as an alternative to the Popelka-Dubno procedure in the absence of a modified 2-cm3 coupler, particularly for instruments with complex pressure systems.
本研究报告描述了一种可用于测量声导抗仪器时间特性的耳机耦合技术。与Popelka和Dubno（1978年）所描述的方法相比，耳机耦合程序的主要优点是时间测量不受与压力系统相关的耦合器声压级中的延迟和不规则性的影响。使用这种耳机耦合程序和Popelka-Dubno程序比较了两种仪器（Grason-Stadler，型号1723）的延迟。在对后一种程序中与压力管相关的延迟进行校正后，延迟测量结果吻合良好。在没有经过改进的2立方厘米耦合器的情况下，特别是对于具有复杂压力系统的仪器，所描述的技术可作为Popelka-Dubno程序的替代方法。
