Development and evaluation of a linguistically and audiologically controlled sentence intelligibility test
Development and evaluation of a linguistically and audiologically controlled sentence intelligibility test
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DOI：
10.1121/1.4818760
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发表时间：
2013-10-01
影响因子：
2.4
通讯作者：
Kollmeier, Birger
中科院分区：
文献类型：
--
作者：
Uslar, Verena N.;Carroll, Rebecca;Kollmeier, Birger
为了允许一个系统的变化的语言复杂性的句子，而声学控制的句子片段的可理解性，德国语料库，奥尔登堡语言和听觉控制的句子（OLACS），设计，实施和评估。通过问卷调查控制句子的可解释性。语音材料的验证进行了三个听的条件下（安静，静止，和波动噪声），通过收集语音接收阈值（SRT）和响应延迟，以及个人的认知措施，为20名听力正常的年轻听众。不同句子类型的反应延迟一致的差异验证了语言复杂性对加工速度的影响。噪声的加入降低了响应延迟，为噪声测量的不同响应策略提供了证据。语言复杂性对SRT有显著影响。在波动的噪音中，这种影响更为明显，表明波动的噪音与更强的认知贡献相关。安静时的SRT与听力阈值相关，而认知测量解释了噪声中SRT的40%的方差。总之，OLACS似乎是一个合适的工具，用于评估语音理解（包括认知处理）和德语语音清晰度方面之间的相互作用。(C)2013年美国声学学会。
To allow for a systematic variation of linguistic complexity of sentences while acoustically controlling for intelligibility of sentence fragments, a German corpus, Oldenburg linguistically and audiologically controlled sentences (OLACS), was designed, implemented, and evaluated. Sentences were controlled for plausibility with a questionnaire survey. Verification of the speech material was performed in three listening conditions (quiet, stationary, and fluctuating noise) by collecting speech reception thresholds (SRTs) and response latencies as well as individual cognitive measures for 20 young listeners with normal hearing. Consistent differences in response latencies across sentence types verified the effect of linguistic complexity on processing speed. The addition of noise decreased response latencies, giving evidence for different response strategies for measurements in noise. Linguistic complexity had a significant effect on SRT. In fluctuating noise, this effect was more pronounced, indicating that fluctuating noise correlates with stronger cognitive contributions. SRTs in quiet correlated with hearing thresholds, whereas cognitive measures explained up to 40% of the variance in SRTs in noise. In conclusion, OLACS appears to be a suitable tool for assessing the interaction between aspects of speech understanding (including cognitive processing) and speech intelligibility in German. (C) 2013 Acoustical Society of America.