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在生态声学分析中的偏见:一个协议,以使音频录音机等同.
Andrea Potenza1, Valentina Zaffaroni-Caorsi1, Roberto Benocci1
1Department of Earth and Environmental Sciences, University of Milano-Bicocca, 20126 Milan, Italy.
Sensors (Basel, Switzerland)
|July 27, 2024
概括
本研究介绍了一种音频录制等级协议,以标准化来自不同设备的音景数据. 这种方法减少了偏见,使得在音景生态学中能够进行更准确的息地和人类声波影响评估.
科学领域:
- 生态生态学 生态生态学
- 生物声学是一种生物声学.
- 环境监测 环境监测
背景情况:
- 生态声学指数提供了快速的息地和人类声学影响评估.
- 不一致的记录器特性导致无法比较的研究结果和趋势.
- 标准化对于可靠的音景生态和息地评估至关重要.
研究的目的:
- 提出和验证一个音频录音等级协议.
- 为了减少由不同的音景记录器模型引起的生态声学指数偏差.
- 确保在不同的音景研究中进行准确和可比的分析.
主要方法:
- 测试了三个音景录音机模型:歌曲仪微,音景探索器地球,和Audiomoth.
- 开发了一种等分协议,将录音机信号与1型音量计对齐.
- 使用MATLAB R2023a,在无声室中提供参考白噪声信号,用于生成波曲线.
主要成果:
- 统计学上验证了均衡协议,使用意大利城市和区域公园的记录.
- 在Song Meter Micro和Audiomoth录音机中观察到生态声学指数偏差的显著减少.
- 该协议在协调来自不同音频传感器的数据方面表现出有效性.
结论:
- 拟议的音频均衡协议有效地减少了生态声学指数中的偏差.
- 这种标准化提高了不同录音设备间的音景数据的可比性.
- 该协议支持在音景研究中更准确的生态和人类声学影响评估.
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