Calculating the Directivity Factor of Transducers from Limited Polar Diagram Information

Gerzon MA. Calculating the Directivity Factor of Transducers from Limited Polar Diagram Information. J Audio Eng Soc. 1975;23(5):369-373. Available from: https://aes.org/publications/elibrary-page/?id=2688

@article{Gerzon1975_2688,
  author = {Gerzon, Michael A.},
  title = {{Calculating the Directivity Factor of Transducers from Limited Polar Diagram Information}},
  journal = {Journal of the Audio Engineering Society},
  volume = {23},
  number = {5},
  pages = {369--373},
  year = {1975},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2688}
}

TY  - JOUR
TI  - Calculating the Directivity Factor of Transducers from Limited Polar Diagram Information
AU  - Gerzon, Michael A.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 23
IS  - 5
SP  - 369
EP  - 373
PY  - 1975
DA  - 1975/06/06
UR  - https://aes.org/publications/elibrary-page/?id=2688
PB  - Audio Engineering Society
LA  - en
AB  - The calculation of the directivity factor y of loudspeakers and microphones (including gun microphones) from polar diagrams measured in two planes only is described. Tables of -weights- for measurements taken at intervals of 10°, 15°, 20°, 22 1/2°, 30°, and 45° are given. Some of the theory is also outlined which uses numerical integration on the surface of the sphere using a product Fejér/Clenshaw-Curtis rule. Rule-of-thumb estimates are given for the maximum directivity factors that can be estimated by this procedure for various intervals.
ER  -