The Full-Sphere Sound Field of Constant Beamwidth Transducer (CBT) Loudspeaker Line Arrays

Keele J,DB(. The Full-Sphere Sound Field of Constant Beamwidth Transducer (CBT) Loudspeaker Line Arrays. In: AES Convention 114. Audio Engineering Society; 2003. Paper 5746. Available from: https://aes.org/publications/elibrary-page/?id=12568

@inproceedings{Keele2003_12568,
  author = {Keele, Jr., D. B. (Don)},
  title = {{The Full-Sphere Sound Field of Constant Beamwidth Transducer (CBT) Loudspeaker Line Arrays}},
  booktitle = {AES Convention 114},
  note = {Paper 5746},
  year = {2003},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12568}
}

TY  - CPAPER
TI  - The Full-Sphere Sound Field of Constant Beamwidth Transducer (CBT) Loudspeaker Line Arrays
AU  - Keele, Jr., D. B. (Don)
T2  - AES Convention 114
M1  - Paper 5746
PY  - 2003
DA  - 2003/03/06
UR  - https://aes.org/publications/elibrary-page/?id=12568
PB  - Audio Engineering Society
LA  - en
AB  - The full-sphere sound radiation pattern of the CBT circular-wedge curved-line loudspeaker array exhibits a 3D petal-shaped sound radiation pattern that stays surprisingly uniform with frequency. Oriented vertically, it not only exhibits the expected uniform control of vertical coverage but also provides significant coverage control horizontally. The horizontal control is provided by a vertical coverage that smoothly decreases as a function of the horizontal off-axis angle and reaches a minimum at right angles to the primary listening axis. This is in contrast to a straight-line array that exhibits a 3D sound field that is axially symmetric about its vertical axis and exhibits only minimal directivity in the horizontal plane due to the inherent directional characteristics of each of the sources that make up the array.
ER  -