Department of Linguistics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
JASA Express Lett. 2022 Feb;2(2):025201. doi: 10.1121/10.0009438.
Listeners can understand speech in noise by "glimpsing" some of the speech regions less affected by noise. This study investigates the contributions of those spectro-temporal regions, known as glimpses, at different energy levels to speech intelligibility in noise. Two listening experiments were conducted to examine the intelligibility of speech in different glimpse compositions in two types of noise. The results suggest that glimpsed spectro-temporal regions with energy above the mean noise level are the primary cue for speech perception in noise, and that listeners can use less-robust cues until at least 15 dB below the glimpsing threshold.
听众可以通过“瞥见”一些受噪声影响较小的语音区域来理解噪声中的语音。本研究调查了这些在不同能量水平下被称为“瞥见”的谱时区域对噪声中语音可懂度的贡献。进行了两项听力实验，以检查两种噪声中不同瞥见组成的语音可懂度。结果表明，高于平均噪声水平的瞥见谱时区域是噪声中语音感知的主要线索，并且听众可以使用不那么稳健的线索，直到瞥见阈值以下至少 15dB。
