Capsule Calibration Approaches for Low-Cost Higher Order Ambisonic Microphone Arrays

Middlicott CJ, Wiggins BJ. Capsule Calibration Approaches for Low-Cost Higher Order Ambisonic Microphone Arrays. In: AES Convention 153. Audio Engineering Society; 2022. Paper 32. Available from: https://aes.org/publications/elibrary-page/?id=21914

@inproceedings{Middlicott2022_21914,
  author = {Middlicott, Charles J and Wiggins, Bruce J.},
  title = {{Capsule Calibration Approaches for Low-Cost Higher Order Ambisonic Microphone Arrays}},
  booktitle = {AES Convention 153},
  note = {Paper 32},
  year = {2022},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=21914}
}

TY  - CPAPER
TI  - Capsule Calibration Approaches for Low-Cost Higher Order Ambisonic Microphone Arrays
AU  - Middlicott, Charles J
AU  - Wiggins, Bruce J.
T2  - AES Convention 153
M1  - Paper 32
PY  - 2022
DA  - 2022/10/06
UR  - https://aes.org/publications/elibrary-page/?id=21914
PB  - Audio Engineering Society
LA  - en
AB  - Low-cost electret microphone capsules, such as those accessible to the audio hobbyist or DIY audio electronics community are typically available ‘unmatched’. Ideally one would like to ensure these capsules all reside within a very small production / performance tolerance. In a cost-focused, mass production environment it is not feasible to measure and match large batches of capsules hence the acoustic performance will differ from capsule to capsule. This paper summarises work around approaches to capsule calibration in an effort to mitigate/overcome the problems caused by capsule mismatch, with a specific focus on its applications ambisonics and multi-microphone arrays.
ER  -