Positions Effect of Multi Exciters and the Optimization on Sound Pressure Responses of Distributed Mode Loudspeaker

Shen X, Shen Y, Zhang S. Positions Effect of Multi Exciters and the Optimization on Sound Pressure Responses of Distributed Mode Loudspeaker. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6841. Available from: https://aes.org/publications/elibrary-page/?id=13645

@inproceedings{Shen2006_13645,
  author = {Shen, Xiaoxiang and Shen, Yong and Zhang, Suzhen},
  title = {{Positions Effect of Multi Exciters and the Optimization on Sound Pressure Responses of Distributed Mode Loudspeaker}},
  booktitle = {AES Convention 120},
  note = {Paper 6841},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13645}
}

TY  - CPAPER
TI  - Positions Effect of Multi Exciters and the Optimization on Sound Pressure Responses of Distributed Mode Loudspeaker
AU  - Shen, Xiaoxiang
AU  - Shen, Yong
AU  - Zhang, Suzhen
T2  - AES Convention 120
M1  - Paper 6841
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13645
PB  - Audio Engineering Society
LA  - en
AB  - The exciters of distributed mode loudspeaker (DML) mainly play two roles, activating forces and attached masses, both of which will affect the sound pressure response of the panel. Therefore, to derive a smoother sound pressure response, the positions of the exciters should be considered carefully. In this paper, the model of a panel with activating forces and attached masses is developed with partial differential equations (PDEs) in FEMLAB. The optimized positions of the exciters are given combining the use of genetic algorithm (GA) based on two different optimization criteria, sound pressure response and mode distribution. Optimal results in both cases are derived and show that various optimization criteria lead to different sound decays and sound pressure sensitivities.
ER  -