Microphone Array Geometry for Two Dimensional Broadband Sound Field Recording

Liao WH, Mitsufuji Y, Osako K, Ohkuri K. Microphone Array Geometry for Two Dimensional Broadband Sound Field Recording. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10082. Available from: https://aes.org/publications/elibrary-page/?id=19808

@inproceedings{Liao2018_19808,
  author = {Liao, Wei-Hsiang and Mitsufuji, Yuki and Osako, Keiichi and Ohkuri, Kazunobu},
  title = {{Microphone Array Geometry for Two Dimensional Broadband Sound Field Recording}},
  booktitle = {AES Convention 145},
  note = {Paper 10082},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19808}
}

TY  - CPAPER
TI  - Microphone Array Geometry for Two Dimensional Broadband Sound Field Recording
AU  - Liao, Wei-Hsiang
AU  - Mitsufuji, Yuki
AU  - Osako, Keiichi
AU  - Ohkuri, Kazunobu
T2  - AES Convention 145
M1  - Paper 10082
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19808
PB  - Audio Engineering Society
LA  - en
AB  - Sound field recording with arrays made of omnidirectional microphones suffers from an ill-conditioned problem due to the zero and small values of the spherical Bessel function. This article proposes a geometric design of a microphone array for broadband two dimensional (2D) sound field recording and reproduction. The design is parametric, with a layout having a discrete rotationally symmetric geometry composed of several geometrically similar subarrays. The actual parameters of the proposed layout can be determined for various acoustic situations to give optimized results. This design has the advantage that it simultaneously satisfies many important requirements of microphone arrays such as error robustness, operating bandwidth, and microphone unit efficiency.
ER  -