Advancing Underwater Sound Synthesis Techniques for Ocean Acoustics (white paper tracking#: "24-000007909")
Abstract
The proposed research project aims to advance computational underwater sound synthesis to address key challenges in Ocean Acoustics. By leveraging expertise in physics-based sound synthesis and high-fidelity modeling, the project will develop robust numerical techniques to capture complex underwater acoustic phenomena. Three main areas of focus are: sound synthesis arising due to acoustic bubble dynamics, solid vibrations and impacts, and ambient underwater noise.The technical approach builds on previous work in airborne sound synthesis and extends it to the underwater domain. The project will explore bubble creation processes, improve bubble oscillators, and investigate the effects of temperature and phase changes on bubble acoustics. It will also extend modal sound synthesis methods to support coupled solid-fluid vibrations and underwater radiative transfer models, specifically for simulating glacial ice contact events and fracture processes. Additionally, the project will develop GPU-accelerated systems for wave-based simulation of underwater sound sources, integrating sound source modeling with wave radiation.The anticipated outcome is the development of high-fidelity simulation models and methods that can approximate underwater acoustic environments. Such modeling is expected to advance the understanding of the basic process of sound generation and enhance the ability to propagate and scatter in complex underwater environments. If successful, the research will provide valuable simulation tools which have the potential to assist environmental monitoring, marine ecosystem understanding, and the assessment of environmental changes, including the detection and characterization of glacial calving events.The impact on DoD capabilities includes improved underwater acoustic modeling, which is helpful in answering #whatif# scenarios, aiding in monitoring marine ecosystems, and assessing the effects of anthropogenic noise. The advanced sound synthesis techniques developed in this project will support the ONR Ocean Acoustics program#s mission and objectives, contributing to the broader understanding of oceanographic processes.Approved for Public Release
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Dec 14, 2024
- Source ID
- N000142512024
Entities
People
- Doug James
Organizations
- Office of Naval Research
- Stanford University
- United States Navy