Studebaker G A, Marincovich P J
Department of Audiology and Speech Pathology, Memphis State University, Tennessee.
Ear Hear. 1989 Apr;10(2):101-8. doi: 10.1097/00003446-198904000-00004.
The purpose of this study was to determine the extent of the agreement between the speech-recognition performance of normally hearing subjects with each of six linear hearing aids and the performance predicted for those aids by a carefully derived articulation index. Also investigated was how much of the remaining variability in average subject performance across hearing aids could be attributed to harmonic distortion. It was found that predicted performance and average observed performance never differed by more than 8.4 rau (mean = 2.3 rau) and that the articulation index procedure used alone accounted for 90 to 94% of the variance in averaged subject performance.
本研究的目的是确定正常听力受试者使用六种线性助听器的言语识别性能与通过精心推导的清晰度指数预测的这些助听器性能之间的一致程度。还研究了助听器之间平均受试者表现的剩余变异性中有多少可归因于谐波失真。结果发现，预测性能与平均观察性能的差异从未超过8.4 rau（平均值 = 2.3 rau），并且单独使用清晰度指数程序可解释平均受试者表现中90%至94%的方差。
