A Pseudoinverse Technique for the Pressure-Matching Beamforming Method

Afghah T, Patros E, Puckette M. A Pseudoinverse Technique for the Pressure-Matching Beamforming Method. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10052. Available from: https://aes.org/publications/elibrary-page/?id=19778

@inproceedings{Afghah2018_19778,
  author = {Afghah, Tahereh and Patros, Elliot and Puckette, Miller},
  title = {{A Pseudoinverse Technique for the Pressure-Matching Beamforming Method}},
  booktitle = {AES Convention 145},
  note = {Paper 10052},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19778}
}

TY  - CPAPER
TI  - A Pseudoinverse Technique for the Pressure-Matching Beamforming Method
AU  - Afghah, Tahereh
AU  - Patros, Elliot
AU  - Puckette, Miller
T2  - AES Convention 145
M1  - Paper 10052
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19778
PB  - Audio Engineering Society
LA  - en
AB  - In this work an extension to the pressure-matching beamforming method (PMM) that’s well-suited for transaural sound field control is presented. The method aims to improve performance at dark points, locations relative to the array where sound pressure is minimized; without producing noticeable artifacts at bright points, locations where acoustic interference is minimized. The method’s new performance priorities result from replacing Tikhonov regularization, which is conventionally used in PMM, with a purpose-built regularization strategy for solving the pseudoinverse of ill-conditioned matrices. Discussions of how this method’s formulation affects the filter design process and of performance comparisons between this and conventional PMM filters are included.
ER  -