The Brain and Mind Institute, The University of Western Ontario.
School of Communication Sciences and Disorders, The University of Western Ontario.
Psychol Sci. 2021 Jun;32(6):903-915. doi: 10.1177/0956797621991137. Epub 2021 May 12.
When people listen to speech in noisy places, they can understand more words spoken by someone familiar, such as a friend or partner, than someone unfamiliar. Yet we know little about how voice familiarity develops over time. We exposed participants ( = 50) to three voices for different lengths of time (speaking 88, 166, or 478 sentences during familiarization and training). These previously heard voices were recognizable and more intelligible when presented with a competing talker than novel voices-even the voice previously heard for the shortest duration. However, recognition and intelligibility improved at different rates with longer exposures. Whereas recognition was similar for all previously heard voices, intelligibility was best for the voice that had been heard most extensively. The speech-intelligibility benefit for the most extensively heard voice (10%-15%) is as large as that reported for voices that are naturally very familiar (friends and spouses)-demonstrating that the intelligibility of a voice can be improved substantially after only an hour of training.
当人们在嘈杂的环境中听演讲时，他们可以理解熟人（如朋友或伴侣）所说的话比陌生人更多。然而，我们对语音熟悉度随时间的发展知之甚少。我们让参与者（=50 人）接触三个声音的时间长短不同（在熟悉和训练期间分别说出 88、166 或 478 个句子）。与新的声音相比，即使是之前听到的持续时间最短的声音，之前听到的声音在有竞争说话者的情况下更可识别且更易于理解。然而，随着接触时间的延长，识别和理解的速度不同。虽然对所有之前听到的声音的识别都相似，但对之前听到的声音的理解效果最好，该声音之前听到的次数最多。对于最广泛听到的声音（10%-15%），语音可理解性的提高与自然非常熟悉的声音（朋友和配偶）相同——表明仅经过一小时的训练，声音的可理解性就可以大大提高。
