Thomas Mathew, Galvin John J, Fu Qian-Jie
Department of Head and Neck Surgery, David Geffen School of Medicine, 10833 Le Conte Avenue, University of California, Los Angeles, Los Angeles, California 90095, USA.
House Ear Institute, 2100 West 3rd Street, Suite 111, Los Angeles, California 90057, USA
JASA Express Lett. 2021 Jan;1(1):015203. doi: 10.1121/10.0003051.
In competing speech, recognition of target speech may be limited by the number and characteristics of maskers, which produce energetic, envelope, and/or informational masking. In this study, speech recognition thresholds (SRTs) were measured with one, two, or four maskers. The target and masker sex was the same or different, and SRTs were measured with time-forward or time-reversed maskers. SRTs were significantly affected by target-masker sex differences with time-forward maskers, but not with time-reversed maskers. The multi-masker penalty was much greater with time-reversed maskers than with time-forward maskers when there were more than two talkers.
在竞争性言语中，目标言语的识别可能会受到掩蔽声的数量和特性的限制，这些掩蔽声会产生能量掩蔽、包络掩蔽和/或信息掩蔽。在本研究中，使用一个、两个或四个掩蔽声测量言语识别阈值（SRT）。目标声和掩蔽声的性别相同或不同，并且使用时间正向或时间反向的掩蔽声测量SRT。对于时间正向掩蔽声，SRT受目标声与掩蔽声性别差异的显著影响，但对于时间反向掩蔽声则不然。当有两个以上的说话者时，时间反向掩蔽声的多掩蔽声惩罚比时间正向掩蔽声大得多。
