Dai Bohan, McQueen James M, Hagoort Peter, Kösem Anne
Max Planck Institute for Psycholinguistics, 6500 AH Nijmegen, The Netherlands.
Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6500 HB Nijmegen, The Netherlands
J Acoust Soc Am. 2017 Mar;141(3):EL249. doi: 10.1121/1.4977590.
Speech-in-speech perception can be challenging because the processing of competing acoustic and linguistic information leads to informational masking. Here, a method is proposed to isolate the linguistic component of informational masking while keeping the distractor's acoustic information unchanged. Participants performed a dichotic listening cocktail-party task before and after training on 4-band noise-vocoded sentences that became intelligible through the training. Distracting noise-vocoded speech interfered more with target speech comprehension after training (i.e., when intelligible) than before training (i.e., when unintelligible) at -3 dB SNR. These findings confirm that linguistic and acoustic information have distinct masking effects during speech-in-speech comprehension.
语音中语音感知可能具有挑战性，因为对相互竞争的声学和语言信息进行处理会导致信息掩蔽。在此，提出了一种方法，在保持干扰项声学信息不变的同时，分离信息掩蔽的语言成分。参与者在对通过训练变得可理解的4频段噪声编码句子进行训练前后，执行了一个双耳分听鸡尾酒会任务。在-3 dB信噪比下，经过训练（即当可理解时）的干扰性噪声编码语音比训练前（即当不可理解时）对目标语音理解的干扰更大。这些发现证实，在语音中语音理解过程中，语言和声学信息具有不同的掩蔽效应。
