Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System

Hur Y, Kim SW, Park YC, Youn DH. Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System. In: AES Convention 125. Audio Engineering Society; 2008. Paper 7619. Available from: https://aes.org/publications/elibrary-page/?id=14770

@inproceedings{Hur2008_14770,
  author = {Hur, Yoomi and Kim, Seong Woo and Park, Young-cheol and Youn, Dae Hee},
  title = {{Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System}},
  booktitle = {AES Convention 125},
  note = {Paper 7619},
  year = {2008},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14770}
}

TY  - CPAPER
TI  - Highly Focused Sound Beamforming Algorithm Using Loudspeaker Array System
AU  - Hur, Yoomi
AU  - Kim, Seong Woo
AU  - Park, Young-cheol
AU  - Youn, Dae Hee
T2  - AES Convention 125
M1  - Paper 7619
PY  - 2008
DA  - 2008/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14770
PB  - Audio Engineering Society
LA  - en
AB  - This paper presents a technique of sound beamforming using a loudspeaker array that can generate highly focused sound beams. First, we find an optimal solution to the problem of maximizing the sound power ratio between a target region and the total region excluding the target region. A preliminary sound beam is designed using the optimal weight. Next, to enhance the directivity of the pre-designed sound beam, an iterative pattern synthesis technique, which was introduced for antenna array, is applied. By assuming that there are imaginary sound powers in the non-target regions, the algorithm can iteratively improve the directivity of the sound beam. The performance of proposed method was evaluated, and the results showed that it could provide highly focused sound beam compared to the conventional method.
ER  -