# Multiple scattering ambisonics: three-dimensional sound field estimation using interacting spheres

arXiv: https://arxiv.org/abs/2106.07157 · HTML: https://mlsanity.com/paper/2106.07157/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 14 Jun 2021.

## Built on by (most cited first, 1 of 1)

- [Sound field decomposition based on two-stage neural networks](https://mlsanity.com/paper/2309.06661/) (2023)

## Abstract (arXiv)

Rigid spherical microphone arrays (RSMAs) have been widely used in ambisonics sound field recording. While it is desired to combine the information captured by a grid of densely arranged RSMAs for expanding the area of accurate reconstruction, or sweet-spots, this is not trivial due to inter-array interference. Here we propose multiple scattering ambisonics, a method for three-dimensional ambisonics sound field recording using multiple acoustically interacting RSMAs. Numerical experiments demonstrate the sweet-spot expansion realized by the proposed method. The proposed method can be used with existing RSMAs as building blocks and opens possibilities including higher degrees-of-freedom spatial audio.