Parabolic Reflector Microphones

Backman J. Parabolic Reflector Microphones. In: AES Convention 112. Audio Engineering Society; 2002. Paper 5499. Available from: https://aes.org/publications/elibrary-page/?id=11379

@inproceedings{Backman2002_11379,
  author = {Backman, Juha},
  title = {{Parabolic Reflector Microphones}},
  booktitle = {AES Convention 112},
  note = {Paper 5499},
  year = {2002},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=11379}
}

TY  - CPAPER
TI  - Parabolic Reflector Microphones
AU  - Backman, Juha
T2  - AES Convention 112
M1  - Paper 5499
PY  - 2002
DA  - 2002/04/06
UR  - https://aes.org/publications/elibrary-page/?id=11379
PB  - Audio Engineering Society
LA  - en
AB  - The paper presents a series of measurements on the behaviour of parabolic reflector microphones. The measurements include gain, sound pressure distribution, and directional properties. These results indicate that although it is easy to obtain considerable high-frequency acoustical gain, the usable angle is extremely narrow, and having the source at a non-ideal position (near-field or off-axis) leads to a geometrical distortion of the focal point, reducing the high-frequency gain. The potential benefit of directional microphones and the theoretical gain properties are discussed.
ER  -