Dreschler W A, Leeuw A R
Academic Medical Center, Meibergdreef, Amsterdam.
J Speech Hear Res. 1990 Mar;33(1):181-7. doi: 10.1044/jshr.3301.181.
In this study, the influence of temporal properties of the auditory system on speech recognition, either in noise or in both noise and reverberation, has been investigated. Temporal resolution parameters consisted of both the temporal resolution factor (TRF) and the minimum detectable gap (MDG). TRFs were measured for probe-tone frequencies of 500, 1000, and 3000 Hz; MDGs were measured for octave-band noises centered at 500, 1000, and 3000 Hz and for a wideband noise. TRF and MDG proved to be rather independent parameters of temporal resolution. For both temporal-resolution parameters, there was considerable overlap between the performance of the normal-hearing and hearing-impaired listeners. A correlation analysis shows that MDG for wideband noise is related to speech recognition in reverberation. However, there is a mutual dependence of speech recognition and MDG on the pure-tone audiogram.
在本研究中，已对听觉系统的时间特性在噪声环境中或噪声与混响同时存在的环境下对语音识别的影响进行了研究。时间分辨率参数包括时间分辨率因子（TRF）和最小可探测间隙（MDG）。针对500、1000和3000赫兹的探测音频率测量了TRF；针对以500、1000和3000赫兹为中心的倍频程带噪声以及宽带噪声测量了MDG。结果证明，TRF和MDG是时间分辨率的相当独立的参数。对于这两个时间分辨率参数，听力正常的听众与听力受损的听众的表现存在相当大的重叠。相关性分析表明，宽带噪声的MDG与混响环境中的语音识别有关。然而，语音识别与MDG在纯音听力图上存在相互依赖性。
