Hybrid millidecade spectra: A practical format for exchange of long-term ambient sound data | Zendy

Bruce Martin | Zendy; Briand Gaudet | Zendy; Holger Klinck | Zendy; Peter J. Dugan | Zendy; Jennifer MiksisOlds | Zendy; David K. Mellinger | Zendy; David A. Mann | Zendy; Olaf Boebel | Zendy; Colleen C. Wilson | Zendy; Dimitri Ponirakis | Zendy; Hilary MoorsMurphy | Zendy

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Hybrid millidecade spectra: A practical format for exchange of long-term ambient sound data

Author(s) -

Bruce Martin,

Briand Gaudet,

Holger Klinck,

Peter J. Dugan,

Jennifer MiksisOlds,

David K. Mellinger,

David A. Mann,

Olaf Boebel,

Colleen C. Wilson,

Dimitri Ponirakis,

Hilary MoorsMurphy

Publication year - 2021

Publication title -

jasa express letters

Language(s) - English

Resource type - Journals

ISSN - 2691-1191

DOI - 10.1121/10.0003324

Subject(s) - computer science , bandwidth (computing) , term (time) , center frequency , volume (thermodynamics) , scaling , sound (geography) , acoustics , electronic engineering , telecommunications , engineering , mathematics , physics , band pass filter , geometry , quantum mechanics

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.

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