Journal
JASA EXPRESS LETTERS
Volume 1, Issue 1, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1121/10.0003324
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Funding
- Ocean and Coastal Management Division at the Bedford Institute of Oceanography
- Ocean Protection Plan's Marine Environmental Quality DFO research program
- Richard Lounsbery Foundation
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This study proposes a frequency scaling approach for optimizing data volume while maintaining reasonable data resolution in processing acoustic data. By using a hybrid format, it allows efficient storage and sharing of data for various types of soundscape analysis and regulatory applications.
This Letter proposes a frequency scaling for processing, storing, and sharing high-bandwidth, passive acoustic spectral data that optimizes data volume while maintaining reasonable data resolution. The format is a hybrid that uses 1Hz resolution up to 455Hz and millidecade frequency bands above 455Hz. This hybrid is appropriate for many types of soundscape analysis, including detecting different types of soundscapes and regulatory applications like computing weighted sound exposure levels. Hybrid millidecade files are compressed compared to the 1Hz equivalent such that one research center could feasibly store data from hundreds of projects for sharing among researchers globally.
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