DIME, University of Genoa, Italy.
DIME, University of Genoa, Italy.
Sci Total Environ. 2022 Feb 20;808:151903. doi: 10.1016/j.scitotenv.2021.151903. Epub 2021 Nov 24.
Acoustic cameras are powerful instruments combining an optical camera with a microphone array to obtain information about power and location of noise sources. The main aim of this study is to identify key points in the application of an acoustic camera to the characterization of port noise. An experimental campaign was carried out in the seaport of Genoa. Based on this experience, a SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis was performed. The experimental results confirm the intrinsic complexity of the noise field in ports. Several noise sources were identified and can be categorized by their duration, intensity, location and spectral content; the analysis performed allows us to propose a basic framework for the innovative application of this technique to the port noise context. Acoustic cameras can be considered viable and useful tools to characterize and monitor port noise, following at least the minimum key points highlighted in the proposed framework.
声相机是一种将光学相机与麦克风阵列相结合的强大工具，可用于获取有关噪声源功率和位置的信息。本研究的主要目的是确定声相机在港口噪声特性描述中的应用要点。在热那亚港进行了一项实验活动。在此基础上进行了 SWOT（优势、劣势、机会和威胁）分析。实验结果证实了港口噪声场的固有复杂性。已经确定了几个噪声源，并可以根据其持续时间、强度、位置和频谱内容对其进行分类；所进行的分析使我们能够为这项技术在港口噪声环境中的创新应用提出一个基本框架。只要遵循所提出框架中强调的至少最低要点，声相机就可以被视为描述和监测港口噪声的可行且有用的工具。
