Department of Communication Disorders, Brigham Young University, Provo, Utah 84602, USA.
Int J Audiol. 2011 Mar;50(3):191-201. doi: 10.3109/14992027.2010.542491.
The aim of this study was to develop and psychometrically evaluate speech audiometry materials that can be used to measure word recognition (WR) and speech recognition testing (SRT) in quiet for native speakers of Cantonese.
Commonly used bisyllabic and trisyllabic Cantonese words were digitally recorded by native male and female talkers and then evaluated by twenty normal-hearing Cantonese listeners.
The recorded bisyllabic words were psychometrically evaluated and arranged into four WR lists and eight half-lists that are relatively homogeneous in audibility. Using logistic regression, SRT materials were developed by selecting 28 trisyllabic words with relatively steep psychometric functions and digitally adjusting their intensity to match the listeners' mean pure-tone average.
The mean psychometric slopes for the WR materials were 7.5%/dB for the male talker and 7.6%/dB for the female talker, with no statistically significant differences between the lists or half-lists. At intensity levels required for 50% intelligibility, the mean psychometric slopes of the male and female talker SRT materials were 14.5%/dB and 14.9 %/dB, respectively.
High-quality digital recordings of Cantonese speech audiometric WR and SRT materials were developed and validated in this study. These materials are available on compact disc, indexed by talker gender.
本研究旨在开发和心理测量评估广东话母语者在安静环境下使用的测听词识别（WR）和言语识别测试（SRT）的言语测听材料。
常用的双音节和三音节广东话单词由本地男女说话者进行数字录制，然后由 20 名正常听力的广东话听众进行评估。
录制的双音节单词经过心理测量评估，并排列成四个 WR 列表和八个半列表，这些列表在可听度上相对均匀。使用逻辑回归，通过选择 28 个具有相对陡峭心理测量函数的三音节单词，并对其强度进行数字调整以匹配听众的平均纯音平均值，开发了 SRT 材料。
男性说话者和女性说话者的 WR 材料的平均心理测量斜率分别为 7.5%/dB 和 7.6%/dB，列表或半列表之间没有统计学上的显著差异。在 50%可理解性所需的强度水平下，男性和女性说话者的 SRT 材料的平均心理测量斜率分别为 14.5%/dB 和 14.9%/dB。
本研究开发并验证了高质量的广东话言语测听 WR 和 SRT 材料的数字录音。这些材料以光盘形式提供，按说话者性别索引。
