Automated sound recording and analysis techniques for bird surveys and conservation
Automated sound recording and analysis techniques for bird surveys and conservation
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DOI：
10.1017/s0959270908000415
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发表时间：
2008-09-01
影响因子：
1.6
通讯作者：
Brandes, T. Scott
中科院分区：
文献类型：
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作者：
Brandes, T. Scott
有很大的需要增加使用和进一步发展鸟类声音的自动录音和分析。鸟类对生态系统功能至关重要，因此提高鸟类监测效率和准确性的技术将极大地有利于科学和保护工作。我们提供了硬件方法的概述，以自动录音，以及在软件中使用的突出技术的概述，以自动检测和分类鸟类的声音。我们提供了用于自动录音的三种硬件解决方案的示例比较摘要，其中包括用于控制独立商用录音机的调度计时器的硬件接口，可编程录音设备和单板计算机。我们还描述了通过小型麦克风元件阵列和使用波导来提高自动记录仪麦克风性能的两种主要方法的示例。为了思考自动声音分析，我们提出了鸟类声音的五种基本声音片段类型，并讨论了鸟类声音自动检测和分类的各种技术，以及它们的局限性。提供了用于度量各种调用类型的各种特性，以及用于这些特性的各种分类方法。它们是在一般性能以及它们所用于的监测和保护工作的背景下讨论的。
There is a great need for increased use and further development Of automated sound recording and analysis of avian sounds. Birds are critical to ecosystem functioning so techniques to make avian monitoring more efficient and accurate will greatly benefit science and conservation efforts. We provide an overview of the hardware approaches to automated Sound recording as well as an overview of the prominent techniques used in software to automatically detect and classify avian Sound. We provide a comparative Summary of examples of three general categories of hardware solutions for automating sound recording which include a hardware interface for a scheduling timer to control a standalone commercial recorder, a programmable recording device, and a single board computer. We also describe examples of the two main approaches to improving microphone performance for automated recorders through small arrays of microphone elements and using waveguides. For the purposes of thinking about automated sound analysis, we suggest five basic sound fragment types of avian sound and discuss a variety of techniques to automatically detect and classify avian Sounds to species level, as Wed as their limitations. A variety of the features to measure for the various call types are provided, along with a variety of classification methods for those features. They are discussed in context of general performance as well as the monitoring and conservation efforts they are used in.