2D Sound Field Reproduction with Elliptical Loudspeaker Array based on Circular Microphone Array Signals

Ren Y, Imaizumi K, Tsutsumi K, Haneda Y. 2D Sound Field Reproduction with Elliptical Loudspeaker Array based on Circular Microphone Array Signals. In: AES Convention 148. Audio Engineering Society; 2020. Paper 10327. Available from: https://aes.org/publications/elibrary-page/?id=20744

@inproceedings{Ren2020_20744,
  author = {Ren, Yi and Imaizumi, Kenta and Tsutsumi, Kimitaka and Haneda, Yoichi},
  title = {{2D Sound Field Reproduction with Elliptical Loudspeaker Array based on Circular Microphone Array Signals}},
  booktitle = {AES Convention 148},
  note = {Paper 10327},
  year = {2020},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20744}
}

TY  - CPAPER
TI  - 2D Sound Field Reproduction with Elliptical Loudspeaker Array based on Circular Microphone Array Signals
AU  - Ren, Yi
AU  - Imaizumi, Kenta
AU  - Tsutsumi, Kimitaka
AU  - Haneda, Yoichi
T2  - AES Convention 148
M1  - Paper 10327
PY  - 2020
DA  - 2020/05/06
UR  - https://aes.org/publications/elibrary-page/?id=20744
PB  - Audio Engineering Society
LA  - en
AB  - In this paper, we propose a method for sound ?eld reproduction using an elliptical loudspeaker array and a circular microphone array. This study aims to reproduce the interior sound ?eld of the elliptical loudspeaker array in a 2-dimensional sound ?eld. The solutions of the Helmholtz equation in an elliptical coordinate system, which are known as Mathieu functions, are used to expand the sound ?eld in an elliptical-coordinate-system-based wave domain. We provide a method to transform the signals recorded by a circular microphone array that are generally expanded with circular harmonics to the Mathieu expansion coef?cients. These coef?cients can be applied to derive the driving functions of loudspeakers. Computer simulations show that the method is valid for sound ?eld reproduction.
ER  -