Work

Towards more accurate sound field verification using directional acoustic filtering

Year: 2025

Type: article

Abstract: Attributing omnidirectional sound levels to a specific source in the ocean can be challenging when there are multiple competing sources of sound such as boats, or biological activity. Here, we present a method to directionally filter acoustic measurements based on vector measurements of acoustic pressure and particle velocity. The directional discrimination is applied to estimate sound energy from two marine energy sources: sound generated during the decommissioning of an oil platform and those from an operating tidal energy converter. The application of a directional mask leads to distinctly different spectra and some differences in energy, relative to the unmasked scenarios.

Source: JASA Express Letters

DOI: 10.1121/10.0036394

Authors: Emily Barosin, Kaustubha Raghukumar

Institution: Dartmouth College

Language: English

Topic: Underwater Acoustics Research

Subfield: Oceanography

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: diamond

Funders: U.S. Department of Energy, Bureau of Ocean Energy Management

Award: G1623911069