Sound directivity control using striped panel loudspeaker

Valimaki V, Kataja J, Antila M. Sound directivity control using striped panel loudspeaker. In: AES Convention 110. Audio Engineering Society; 2001. Paper 5306. Available from: https://aes.org/publications/elibrary-page/?id=9922

@inproceedings{Valimaki2001_9922,
  author = {Valimaki, Vesa and Kataja, Jari and Antila, Marko},
  title = {{Sound directivity control using striped panel loudspeaker}},
  booktitle = {AES Convention 110},
  note = {Paper 5306},
  year = {2001},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=9922}
}

TY  - CPAPER
TI  - Sound directivity control using striped panel loudspeaker
AU  - Valimaki, Vesa
AU  - Kataja, Jari
AU  - Antila, Marko
T2  - AES Convention 110
M1  - Paper 5306
PY  - 2001
DA  - 2001/05/06
UR  - https://aes.org/publications/elibrary-page/?id=9922
PB  - Audio Engineering Society
LA  - en
AB  - The sound radiation properties of a striped panel loudspeaker are modified in this study. The panel loudspeaker is based on Electromechanical film (EMFi) and consists of 14 individual sound radiating areas in form of narrow stripes. Each stripe can be driven individually so that the panel radiation pattern can be modified and it can be used as a directivity-controlled sound source in audio applications. The performance of the panel was analyzed using an acoustical boundary element method (BEM) model. For real-time directivity control, an algorithm was developed to process the input signals to gain appropriate radiation patterns. The measurements carried out in anechoic conditions were used to verify that the striped EMFi panel operates according to the simulations and that it produces the desired directivity pattern.
ER  -