Shape Optimization of Waveguides for Improving the Directivity of Soft Dome Tweeters

Xiao H, Gu J, Li Z, Yang J. Shape Optimization of Waveguides for Improving the Directivity of Soft Dome Tweeters. In: Convention Paper. Audio Engineering Society; 2025. Paper 10205. Available from: https://aes.org/publications/elibrary-page/?id=22841

@inproceedings{Xiao2025_22841,
  author = {Xiao, He and Gu, Jun and Li, Zhi and Yang, Jianbin},
  title = {{Shape Optimization of Waveguides for Improving the Directivity of Soft Dome Tweeters}},
  note = {Paper 10205},
  year = {2025},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=22841}
}

TY  - CPAPER
TI  - Shape Optimization of Waveguides for Improving the Directivity of Soft Dome Tweeters
AU  - Xiao, He
AU  - Gu, Jun
AU  - Li, Zhi
AU  - Yang, Jianbin
M1  - Paper 10205
PY  - 2025
DA  - 2025/05/12
UR  - https://aes.org/publications/elibrary-page/?id=22841
PB  - Audio Engineering Society
LA  - en
AB  - This study presents a waveguide design strategy that integrates the modal matching method and the finite element method to align the spectral distributions of both on-axis and off-axis responses in a soft dome tweeter. Due to its high computational efficiency, the modal matching method is initially employed to derive a preliminary optimized waveguide. This initial design is then used as the starting geometry for further refinement via the finite element method, which offers greater flexibility in shape modification. Experimental results show that waveguides optimized using either method improve the tweeter's directivity. Furthermore, a strong correlation is observed between the optimization outcomes of the two methods.
ER  -