Amazon Forest Soundscapes Affected by Fire and Logging

Passive sound recorders were installed at the center of each degraded forest site to record one minute of sound every five minutes over 2-8 days during September-October 2016, totaling over 1100 hours of data. Sound detections were aggregated into three-dimensional soundscapes (site-level daily summaries of acoustic space used by the animal community) by binning signal detections into ‘acoustic niches’ defined by frequency (bin size: 83.13 Hz) and time.2016年9—10月期间，研究人员在每一处退化森林样地的中心布设被动声学记录仪（Passive sound recorder），每5分钟录制1分钟音频，连续采集2至8天，累计获取总时长超1100小时的声学数据。通过将信号检测结果归入以频率（分箱宽度：83.13 Hz）和时间划定的"声学生态位（acoustic niche）"进行分箱处理，研究人员将声学检测结果整合为三维声景（three-dimensional soundscape）——该三维声景为动物群落所利用的声学空间的样地级日度总结。