Drullman R, Bronkhorst A W
TNO Human Factors Research Institute, Department of Perception, Soesterberg, The Netherlands.
J Acoust Soc Am. 2000 Apr;107(4):2224-35. doi: 10.1121/1.428503.
In a 3D auditory display, sounds are presented over headphones in a way that they seem to originate from virtual sources in a space around the listener. This paper describes a study on the possible merits of such a display for bandlimited speech with respect to intelligibility and talker recognition against a background of competing voices. Different conditions were investigated: speech material (words/sentences), presentation mode (monaural/binaural/3D), number of competing talkers (1-4), and virtual position of the talkers (in 45 degrees-steps around the front horizontal plane). Average results for 12 listeners show an increase of speech intelligibility for 3D presentation for two or more competing talkers compared to conventional binaural presentation. The ability to recognize a talker is slightly better and the time required for recognition is significantly shorter for 3D presentation in the presence of two or three competing talkers. Although absolute localization of a talker is rather poor, spatial separation appears to have a significant effect on communication. For either speech intelligibility, talker recognition, or localization, no difference is found between the use of an individualized 3D auditory display and a general display.
在三维听觉显示中，声音通过耳机呈现，使其看起来似乎源自听众周围空间中的虚拟声源。本文描述了一项关于这种显示对于带限语音在清晰度以及在有竞争语音背景下说话者识别方面可能具有的优点的研究。研究了不同条件：语音材料（单词/句子）、呈现模式（单声道/双耳/三维）、竞争说话者的数量（1 - 4个）以及说话者的虚拟位置（在前水平平面周围以45度步长）。12名听众的平均结果表明，与传统双耳呈现相比，对于两个或更多竞争说话者，三维呈现的语音清晰度有所提高。在有两个或三个竞争说话者的情况下，三维呈现识别说话者的能力略好，且识别所需时间明显更短。尽管对说话者的绝对定位相当差，但空间分离似乎对通信有显著影响。对于语音清晰度、说话者识别或定位，使用个性化三维听觉显示和通用显示之间未发现差异。
