Article,
Sound source localization using multiple ad hoc distributed microphone arrays
Contributors
Hahmann, Manuel
0000-0001-7325-3584
(Corresponding author)
[1]
[2]
[3]
Fernandez-Grande, Efren
0000-0002-8900-183X
[1]
Gerstoft, Peter
0000-0002-0471-062X
[2]
[3]
Affiliations
- [1] Tech Univ Denmark, Dept Elect & Photon Engn, Acoust Technol, DK-2800 Lyngby, Denmark [NORA names: DTU Technical University of Denmark; University; Denmark; Europe, EU; Nordic; OECD];
- [2] Univ Calif San Diego, Marine Phys Lab, Noiselab, La Jolla, CA 92037 USA [NORA names: United States; America, North; OECD];
- [3] Univ Calif San Diego, Marine Phys Lab, Noiselab, La Jolla, CA 92037 USA [NORA names: United States; America, North; OECD]
Abstract
Sound source localization is crucial for communication and sound scene analysis. This study uses direction-of-arrival estimates of multiple ad hoc distributed microphone arrays to localize sound sources in a room. An affine mapping between the independent array estimates and the source coordinates is derived from a set of calibration points. Experiments show that the affine model is sufficient to locate a source and can be calibrated to physical dimensions. A projection of the local array estimates increases localization accuracy, particularly further away from the calibrated region. Localization tests in three dimensions compare the affine approach to a nonlinear neural network. (C) 2022 Author(s).
