Apparent Apex Theory

Ureda MS. Apparent Apex Theory. In: AES Convention 61. Audio Engineering Society; 1978. Paper 1403. Available from: https://aes.org/publications/elibrary-page/?id=2951

@inproceedings{Ureda1978_2951,
  author = {Ureda, Mark S.},
  title = {{Apparent Apex Theory}},
  booktitle = {AES Convention 61},
  note = {Paper 1403},
  year = {1978},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=2951}
}

TY  - CPAPER
TI  - Apparent Apex Theory
AU  - Ureda, Mark S.
T2  - AES Convention 61
M1  - Paper 1403
PY  - 1978
DA  - 1978/11/06
UR  - https://aes.org/publications/elibrary-page/?id=2951
PB  - Audio Engineering Society
LA  - en
AB  - Current methods of measuring polar response curves are not sufficiently defined to yield representative farfield performance. It is shown that the conventionally measured -6 dB angle can be dependent on the point of rotation of the horn and the distance to the measuring microphone. A new methodology determines a point of rotation, the Apparent Apex, such that the measured coverage angle becomes independent of the distance to the microphone, thus allowing observation of farfield polar characteristics at close proximities.
ER  -