Walter Reed National Military Medical Center, Bethesda, Maryland 20889,
J Acoust Soc Am. 2019 Oct;146(4):EL381. doi: 10.1121/1.5129562.
Effects of temporal distortions on consonant perception were measured using locally time-reversed nonsense syllables. Consonant recognition was measured in both audio and audio-visual modalities for assessing whether the addition of visual speech cues can recover consonant errors caused by time reversing. The degradation in consonant recognition depended highly on the manner of articulation, with sibilant fricatives, affricates, and nasals showing the least degradation. Because consonant errors induced by time reversing were primarily in voicing and place-of-articulation (mostly limited to stop-plosives and non-sibilant fricatives), undistorted visual speech cues could resolve only about half the errors (i.e., only place-of-articulation errors).
使用局部时间反转的无意义音节来测量时间扭曲对辅音感知的影响。在音频和视听模态中测量辅音识别，以评估添加视觉语音提示是否可以纠正由于时间反转引起的辅音错误。辅音识别的退化高度取决于发音方式，其中咝音擦音、塞擦音和鼻音的退化最小。由于时间反转引起的辅音错误主要在浊音和发音部位（主要限于爆破音和非咝音擦音），因此未失真的视觉语音提示只能纠正大约一半的错误（即，仅发音部位错误）。
