Portable Spherical Microphone for Super Hi-Vision 22.2 Multichannel Audio

Ono K, Nishiguchi T, Matsui K, Hamasaki K. Portable Spherical Microphone for Super Hi-Vision 22.2 Multichannel Audio. In: AES Convention 135. Audio Engineering Society; 2013. Paper 8922. Available from: https://aes.org/publications/elibrary-page/?id=16972

@inproceedings{Ono2013_16972,
  author = {Ono, Kazuho and Nishiguchi, Toshiyuki and Matsui, Kentaro and Hamasaki, Kimio},
  title = {{Portable Spherical Microphone for Super Hi-Vision 22.2 Multichannel Audio}},
  booktitle = {AES Convention 135},
  note = {Paper 8922},
  year = {2013},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16972}
}

TY  - CPAPER
TI  - Portable Spherical Microphone for Super Hi-Vision 22.2 Multichannel Audio
AU  - Ono, Kazuho
AU  - Nishiguchi, Toshiyuki
AU  - Matsui, Kentaro
AU  - Hamasaki, Kimio
T2  - AES Convention 135
M1  - Paper 8922
PY  - 2013
DA  - 2013/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16972
PB  - Audio Engineering Society
LA  - en
AB  - NHK has been developing a portable microphone for the simultaneous recording of 22.2ch multichannel audio. The microphone is 45 cm in diameter and has acoustic baffles that partition the sphere into angular segments, in each of which an omnidirectional microphone element is mounted. Owing to the effect of the baffles, each segment works as a narrow angle directivity and a constant beam width in higher frequencies above 6 kHz. The directivity becomes wider as frequency decreases and that it becomes almost omnidirectional below 500 Hz. The authors also developed a signal processing method that improves the directivity below 800 Hz.
ER  -