Iverson P
Department of Psychology, Cornell Unviverstiy, USA.
J Exp Psychol Hum Percept Perform. 1995 Aug;21(4):751-63. doi: 10.1037//0096-1523.21.4.751.
Two experiments examined the influence of timbre on auditory stream segregation. In experiment 1, listeners heard sequences of orchestral tones equated for pitch and loudness, and they rated how strongly the instruments segregated. Multidimensional scaling analyses of these ratings revealed that segregation was based on the static and dynamic acoustic attributes that influenced similarity judgements in a previous experiment (P Iverson & CL Krumhansl, 1993). In Experiment 2, listeners heard interleaved melodies and tried to recognize the melodies played by a target timbre. The results extended the findings of Experiment 1 to tones varying pitch. Auditory stream segregation appears to be influenced by gross differences in static spectra and by dynamic attributes, including attack duration and spectral flux. These findings support a gestalt explanation of stream segregation and provide evidence against peripheral channel model.
两项实验研究了音色对听觉流分离的影响。在实验1中，听众聆听了音高和响度相等的管弦乐音调序列，并对乐器的分离程度进行了评分。对这些评分进行的多维标度分析表明，分离是基于在先前实验中（P·艾弗森和CL·克鲁曼斯尔，1993年）影响相似性判断的静态和动态声学属性。在实验2中，听众聆听交织的旋律，并试图识别由目标音色演奏的旋律。结果将实验1的发现扩展到了音高变化的音调。听觉流分离似乎受到静态频谱的总体差异以及包括起音持续时间和频谱通量在内的动态属性的影响。这些发现支持了对流分离的格式塔解释，并提供了反对外周通道模型的证据。
