Learning Tri-modal Embeddings for Zero-Shot Soundscape Mapping

Subash Khanal (Washington University in Saint Louis),* Srikumar Sastry (Washington University in St. Louis), Aayush Dhakal (Washington University in St Louis), Nathan Jacobs (Washington University in St. Louis)
The 34th British Machine Vision Conference


We focus on the task of soundscape mapping, which involves predicting the most probable sounds that could be perceived at a particular geographic location. We utilise recent state-of-the-art models to encode geotagged audio, a textual description of the audio, and an overhead image of its capture location using contrastive pre-training. The end result is a shared embedding space for the three modalities, which enables the construction of soundscape maps for any geographic region from textual or audio queries. Using the SoundingEarth dataset, we find that our approach significantly outperforms the existing SOTA, with an improvement of image-to-audio Recall@100 from 0.256 to 0.450. Our code is available at https://github.com/mvrl/geoclap



author    = {Subash Khanal and Srikumar Sastry and Aayush Dhakal and Nathan Jacobs},
title     = {Learning Tri-modal Embeddings for Zero-Shot Soundscape Mapping},
booktitle = {34th British Machine Vision Conference 2023, {BMVC} 2023, Aberdeen, UK, November 20-24, 2023},
publisher = {BMVA},
year      = {2023},
url       = {https://papers.bmvc2023.org/0813.pdf}

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