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Abstract
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 1 Hz resolution up to 455 Hz and millidecade frequency bands above 455 Hz. 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 1 Hz equivalent such that one research center could feasibly store data from hundreds of projects for sharing among researchers globally.
Publication Date
1-29-2021
Journal Title
JASA Express Letters
Rights
© 2021 Author(s).
Publisher
Acoustical Society of America (ASA)
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
S. B. Martin, Gaudet, B. J., Klinck, H., Miksis-Olds, J., Dugan, P. J., Mellinger, D. K., Mann, D. A., Boebel, O., Wilson, C. C., Ponirakis, D. W., and Moors-Murphy, H., “Hybrid Millidecade Spectra: A Practical Format for Exchange of Long-term Ambient Sound Data”, Journal of the Acoustical Society of America – Express Letters, vol. 1(1) 081201. 2021.
Comments
This is an open access article published by Acoustical Society of America (ASA) in JASA Express Letters in 2021, available online: https://dx.doi.org/10.1121/10.0003324