Design of a Compact Cylindrical Loudspeaker Array for Spatial Sound Reproduction

Kolundzija M, Faller C, Vetterli M. Design of a Compact Cylindrical Loudspeaker Array for Spatial Sound Reproduction. In: AES Convention 130. Audio Engineering Society; 2011. Paper 8336. Available from: https://aes.org/publications/elibrary-page/?id=15803

@inproceedings{Kolundzija2011_15803,
  author = {Kolundzija, Mihailo and Faller, Christof and Vetterli, Martin},
  title = {{Design of a Compact Cylindrical Loudspeaker Array for Spatial Sound Reproduction}},
  booktitle = {AES Convention 130},
  note = {Paper 8336},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15803}
}

TY  - CPAPER
TI  - Design of a Compact Cylindrical Loudspeaker Array for Spatial Sound Reproduction
AU  - Kolundzija, Mihailo
AU  - Faller, Christof
AU  - Vetterli, Martin
T2  - AES Convention 130
M1  - Paper 8336
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15803
PB  - Audio Engineering Society
LA  - en
AB  - Building acoustic beamformers is a problem whose solution is hindered by the wide-band nature of audible sound. In order to achieve a consistent directional response over a wide range of frequencies, a conventional acoustic beamformer needs a high number of discrete loudspeakers and be large enough to achieve a desired low-frequency performance. The acoustic beamformer design described in this paper uses measurement-based optimized beamforming for loudspeakers mounted on a rigid cylindrical baffle. Super-directional beamforming enables achieving desired directivity with multiple loudspeakers at low frequencies. High frequencies are reproduced with a single loudspeaker, whose highly directional reproduction--due to the cylindrical baffle--matches the design goals. In addition to the beamformer filter design procedure, it is shown how such loudspeaker array can be used for spatial sound reproduction.
ER  -