EquiSELD: Efficient training of equivariant sound event localization and detection networks
First-order Ambisonics (FOA) signals exhibit exact O(3) symmetry: The rotation or reflection of the FOA signal modifies the direction of arrival of the sound sources, while preserving the sound sources themselves. Prior attempts to utilize this spatial symmetry of FOA to improve the efficiency and robustness of sound event detection and localization (SELD) systems either learned only an approximation of the symmetry through rotation-based augmentation or relied on computationally expensive methods to integrate equivariance. Furthermore, prior work focused exclusively on SO(3) equivariance , leaving the potential of incorporating O(3) equivariance for SELD tasks unclear. To address these l...
| Authors | Goksenin Yuksel, Marcel van Gerven, Kiki van der Heijden |
|---|---|
| Primary category | cs.SD |
| Published | 19 September 2026 |
| Last updated at source | 19 September 2026 |
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