Contrastive learning for passive acoustic monitoring: A framework for sound source discovery and cross-site comparison in marine soundscapes
Fig 8
Spectrogram gallery of representative acoustic signatures identified through clustering across all sites.
The examples include recurrent sounds associated with spawning species observed at multiple locations, as well as sound signatures restricted to particular sites. Distinct anthropogenic sounds, such as vessel noise, also appear as site-specific signatures. The full spectrogram gallery is provided in S1 Appendix. Sounds with similar spectro-temporal structure may be grouped into the same cluster, even when visual differences are subtle (e.g., Clusters 3 and 5).