Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker

Kurosawa T, Okubo K. Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker. In: AES Convention 148. Audio Engineering Society; 2020. Paper 10363. Available from: https://aes.org/publications/elibrary-page/?id=20780

@inproceedings{Kurosawa2020_20780,
  author = {Kurosawa, Tasuku and Okubo, Kan},
  title = {{Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker}},
  booktitle = {AES Convention 148},
  note = {Paper 10363},
  year = {2020},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20780}
}

TY  - CPAPER
TI  - Acoustic Vibration Analysis of the Shell-Structured Distributed Mode Loudspeaker
AU  - Kurosawa, Tasuku
AU  - Okubo, Kan
T2  - AES Convention 148
M1  - Paper 10363
PY  - 2020
DA  - 2020/05/06
UR  - https://aes.org/publications/elibrary-page/?id=20780
PB  - Audio Engineering Society
LA  - en
AB  - Since the 1990s, Distributed Mode Loudspeaker (DML) has been widely researched and developed. The DML can provide wideband-characteristics and wide directivity in spite of a single diaphragm by using bending waves based vibration on the plate for acoustic radiation. This property is signi?cantly different from traditional loud-speakers. However, the DML has structural problems (e.g., maximum dimension becomes large), because it uses a two-dimensionally spread ?at plate. In this paper, the authors examine the characteristics of shell-structured loudspeakers whose diaphragm is formed with an arbitrary curvature, and compare them with conventional DML. Our results strongly suggest that the problems of the DML using a ?at plate can be improved by employing a shell structure for the diaphragm.
ER  -