Prior listening in rooms improves speech intelligibility
Prior listening in rooms improves speech intelligibility
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DOI：
10.1121/1.3436565
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发表时间：
2010-07-01
影响因子：
2.4
通讯作者：
Zahorik, Pavel
中科院分区：
文献类型：
--
作者：
Brandewie, Eugene;Zahorik, Pavel
虽然从以前的研究结果表明，一个单一的反射的声学效果被感知抑制后，反复暴露于一个特定的配置源和反射，这种动态回声抑制的程度可能会推广到语音理解在室内环境中的多个反射和混响在很大程度上是未知的。在这里，语音清晰度测量使用的坐标响应测量语料库与或不与先前的听暴露于混响室环境，这是使用虚拟听觉空间技术模拟。先前的房间听力暴露操纵呈现两句载体短语之前的目标语音，或没有载体短语在房间环境中。从14个听众的结果表明，与以前的房间曝光，掩蔽语音接收阈值平均2.7 dB低于阈值没有曝光，平均超过18个百分点的可懂度的改善。这种效果，这是不存在的消声空间和单声道收听条件下大大减少，表明前双耳暴露于混响室可以提高语音清晰度，也许是由于一个过程中的感知适应的声学听音室。(C)2010年美国声学学会。[DOI 10.1121/1.3436565]
Although results from previous studies have demonstrated that the acoustic effects of a single reflection are perceptually suppressed after repeated exposure to a particular configuration of source and reflection, the extent to which this dynamic echo suppression might generalize to speech understanding in room environments with multiple reflections and reverberation is largely unknown. Here speech intelligibility was measured using the coordinate response measure corpus both with and without prior listening exposure to a reverberant room environment, which was simulated using virtual auditory space techniques. Prior room listening exposure was manipulated by presenting either a two-sentence carrier phrase that preceded the target speech, or no carrier phrase within the room environment. Results from 14 listeners indicate that with prior room exposure, masked speech reception thresholds were on average 2.7 dB lower than thresholds without exposure, an improvement in intelligibility of over 18 percentage points on average. This effect, which is shown to be absent in anechoic space and greatly reduced under monaural listening conditions, demonstrates that prior binaural exposure to reverberant rooms can improve speech intelligibility, perhaps due to a process of perceptual adaptation to the acoustics of the listening room. (C) 2010 Acoustical Society of America. [DOI: 10.1121/1.3436565]