Megela Simmons Andrea, Simmons James A, Bates Mary E
Department of Psychology, Brown University, Providence, RI 02912, USA.
J Comp Psychol. 2008 Aug;122(3):274-82. doi: 10.1037/0735-7036.122.3.274.
Analysis of acoustic interactions between animals in active choruses is complex because of the large numbers of individuals present, their high calling rates, and the considerable numbers of vocalizations that either overlap or show close temporal alternation. The authors describe a methodology for recording chorus activity in bullfrogs (Rana catesbeiana) using multiple, closely spaced acoustic sensors that provide simultaneous estimates of sound direction and sound characteristics. This method provides estimates of location of individual callers, even under conditions of call overlap. This is a useful technique for understanding the complexity of the acoustic scene faced by animals vocalizing in groups.
由于存在大量个体、它们的高鸣叫率以及大量重叠或显示出紧密时间交替的发声，对活跃鸣叫群体中动物之间的声学相互作用进行分析很复杂。作者描述了一种使用多个紧密间隔的声学传感器记录牛蛙（牛蛙）鸣叫活动的方法，这些传感器可同时估计声音方向和声音特征。即使在叫声重叠的情况下，这种方法也能估计单个鸣叫者的位置。这是一种用于理解群体中发声动物所面临的声学场景复杂性的有用技术。
