Impulse and Radiation Field Measurements for Single Exciter versus Exciter Array Flat-Panel Loudspeakers

Anderson D, Heilemann M, Bocko MF. Impulse and Radiation Field Measurements for Single Exciter versus Exciter Array Flat-Panel Loudspeakers. In: AES Convention 143. Audio Engineering Society; 2017. Paper 379. Available from: https://aes.org/publications/elibrary-page/?id=19330

@inproceedings{Anderson2017_19330,
  author = {Anderson, David and Heilemann, Michael and Bocko, Mark F.},
  title = {{Impulse and Radiation Field Measurements for Single Exciter versus Exciter Array Flat-Panel Loudspeakers}},
  booktitle = {AES Convention 143},
  note = {Paper 379},
  year = {2017},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19330}
}

TY  - CPAPER
TI  - Impulse and Radiation Field Measurements for Single Exciter versus Exciter Array Flat-Panel Loudspeakers
AU  - Anderson, David
AU  - Heilemann, Michael
AU  - Bocko, Mark F.
T2  - AES Convention 143
M1  - Paper 379
PY  - 2017
DA  - 2017/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19330
PB  - Audio Engineering Society
LA  - en
AB  - Flat-panel loudspeakers with single exciters exhibit significant directivity shifts and many discrete resonances in frequency regions of low modal density. These phenomena are demonstrated through mechanical and acoustic measurements on an acrylic and a glass prototype panel, both with single exciters. The measurements are repeated for the acrylic panel using an array of exciters where the force magnitude of each exciter is specified to actuate only the lowest-index bending mode. The mechanical measurements demonstrate that no modes in the array-addressable frequency region above the first mode are actuated. Acoustically, measurements show omnidirectional radiation with a single low-frequency resonance, showing how the exciter array enables the flat panel to behave similarly to a conventional loudspeaker within the array-addressable frequency region.
ER  -