Effective Strategies for Automatic Analysis of Acoustic Signals in Long-Term Monitoring

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Gepubliceerd in:Journal of Marine Science and Engineering vol. 13, no. 3 (2025), p. 454-475
Hoofdauteur: Diego-Tortosa Dídac
Andere auteurs: Bonanno Danilo, Bou-Cabo, Manuel, Di Mauro Letizia S., Idrissi Abdelghani, Lara, Guillermo, Riccobene Giorgio, Sanfilippo, Simone, Viola Salvatore
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022 |a 2077-1312 
024 7 |a 10.3390/jmse13030454  |2 doi 
035 |a 3181549790 
045 2 |b d20250101  |b d20251231 
084 |a 231479  |2 nlm 
100 1 |a Diego-Tortosa Dídac  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
245 1 |a Effective Strategies for Automatic Analysis of Acoustic Signals in Long-Term Monitoring 
260 |b MDPI AG  |c 2025 
513 |a Journal Article 
520 3 |a Hydrophones used in Passive Acoustic Monitoring generate vast amounts of data, with the storage requirements for raw signals dependent on the sampling frequency, which limits the range of frequencies that can be recorded. Since the installation of these observatories is costly, it is crucial to maximize the utility of high-sampling-rate recordings to expand the range of survey types. However, storing these large datasets for long-term trend analysis presents significant challenges. This paper proposes an approach that reduces the data storage requirements by up to 85% while preserving critical information about Power Spectral Density and Sound Pressure Level. The strategy involves generating these key metrics from spectrograms, enabling both short-term (micro) and long-term (macro) studies. A proposal for efficient data processing is presented, structured in three steps: the first focuses on generating key metrics to replace space-consuming raw signals, the second addresses the treatment of these metrics for long-term studies, and the third outlines the creation of event detectors from the processed metrics. A comprehensive overview of the essential features for analyzing acoustic signals is provided, along with considerations for the future design of marine observatories. The necessary calculations and processes are detailed, demonstrating the potential of these methods to address the current data storage and processing limitations in long-term acoustic monitoring. 
653 |a Sound pressure 
653 |a Data processing 
653 |a Acoustic tracking 
653 |a Trend analysis 
653 |a Storage requirements 
653 |a Data storage 
653 |a Signal processing 
653 |a Hydrophones 
653 |a Data analysis 
653 |a Noise pollution 
653 |a Sampling 
653 |a Monitoring 
653 |a Strategic planning 
653 |a Monitoring systems 
653 |a Habitats 
653 |a Detectors 
653 |a Data integrity 
653 |a Spectrograms 
653 |a Observatories 
653 |a Sensors 
653 |a Data collection 
653 |a Information storage 
653 |a Algorithms 
653 |a Power spectral density 
653 |a Acoustics 
653 |a Environmental 
700 1 |a Bonanno Danilo  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
700 1 |a Bou-Cabo, Manuel  |u Instituto Español de Oceanografía (IEO) - Consejo Superior de Investigaciones Científicas (CSIC), Mixed Unit UPV-IEO, Tinglados Muelle Frutero, Grau de Gandia, 46730 Valencia, Spain; manuel.bou@ieo.csic.es (M.B.-C.); guillermo.lara@ieo.csic.es (G.L.) 
700 1 |a Di Mauro Letizia S.  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
700 1 |a Idrissi Abdelghani  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
700 1 |a Lara, Guillermo  |u Instituto Español de Oceanografía (IEO) - Consejo Superior de Investigaciones Científicas (CSIC), Mixed Unit UPV-IEO, Tinglados Muelle Frutero, Grau de Gandia, 46730 Valencia, Spain; manuel.bou@ieo.csic.es (M.B.-C.); guillermo.lara@ieo.csic.es (G.L.) 
700 1 |a Riccobene Giorgio  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
700 1 |a Sanfilippo, Simone  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
700 1 |a Viola Salvatore  |u Laboratori Nazionali del Sud (LNS) - Istituto Nazionale di Fisica Nucleare (INFN), Via S. Sofia 62, 95125 Catania, Italy; danilo.bonanno@lns.infn.it (D.B.); letizia.dimauro@lns.infn.it (L.S.D.M.); abdelghani.idrissi@lns.infn.it (A.I.); giorgio.riccobene@lns.infn.it (G.R.); sanfilippo@lns.infn.it (S.S.); sviola@lns.infn.it (S.V.) 
773 0 |t Journal of Marine Science and Engineering  |g vol. 13, no. 3 (2025), p. 454-475 
786 0 |d ProQuest  |t Engineering Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3181549790/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch 
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