Development of a test battery for evaluating speech perception in complex listening environments
Development of a test battery for evaluating speech perception in complex listening environments
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DOI：
10.1121/1.4887440
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发表时间：
2014-08-01
影响因子：
2.4
通讯作者：
Kubli, Lina R.
中科院分区：
文献类型：
--
作者：
Brungart, Douglas S.;Sheffield, Benjamin M.;Kubli, Lina R.
在现实世界中，口语交流发生在复杂的环境中，涉及视听语音线索、空间分离的声源、混响的听音空间以及其他影响语音理解的复杂因素。然而，大多数评估语音感知的临床工具都是基于简化的听力环境，不能反映真实世界听力的复杂性。本研究采用Killion， Niquette, Gudmundsen, Revit， and Banerjee等人的QuickSIN噪声语音测试中的语音材料[J]。Acoust。Soc。Am. 116, 2395-2405(2004)]被修改为模拟八种听力条件，跨越听众在日常生活中遇到的听觉环境范围。采用标准的QuickSIN测试方法估计每种情况下50%的语音接收阈值（SRT50）。调整过程的方法也被用来获得最低信噪比（SNR）的主观估计，其中听众能够理解100%的语音（SRT100）和最高信噪比，其中他们可以检测到语音，但不能理解任何单词（SRT0）。结果表明，改进后的材料保持了QuickSIN测试程序的大部分效率，同时捕获了不同听力条件下的表现差异，与之前的研究报告相比，这些研究报告了视听线索、双耳线索、室内混响和时间压缩对语音可理解性的影响。
In the real world, spoken communication occurs in complex environments that involve audiovisual speech cues, spatially separated sound sources, reverberant listening spaces, and other complicating factors that influence speech understanding. However, most clinical tools for assessing speech perception are based on simplified listening environments that do not reflect the complexities of real-world listening. In this study, speech materials from the QuickSIN speech-in-noise test by Killion, Niquette, Gudmundsen, Revit, and Banerjee [J. Acoust. Soc. Am. 116, 2395-2405 (2004)] were modified to simulate eight listening conditions spanning the range of auditory environments listeners encounter in everyday life. The standard QuickSIN test method was used to estimate 50% speech reception thresholds (SRT50) in each condition. A method of adjustment procedure was also used to obtain subjective estimates of the lowest signal-to-noise ratio (SNR) where the listeners were able to understand 100% of the speech (SRT100) and the highest SNR where they could detect the speech but could not understand any of the words (SRT0). The results show that the modified materials maintained most of the efficiency of the QuickSIN test procedure while capturing performance differences across listening conditions comparable to those reported in previous studies that have examined the effects of audiovisual cues, binaural cues, room reverberation, and time compression on the intelligibility of speech.