Shotgun Microphone with High Directivity by Extra-Long Acoustic Tube and Digital Noise Reduction

Sasaki Y, Ono K. Shotgun Microphone with High Directivity by Extra-Long Acoustic Tube and Digital Noise Reduction. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10097. Available from: https://aes.org/publications/elibrary-page/?id=19823

@inproceedings{Sasaki2018_19823,
  author = {Sasaki, Yo and Ono, Kazuho},
  title = {{Shotgun Microphone with High Directivity by Extra-Long Acoustic Tube and Digital Noise Reduction}},
  booktitle = {AES Convention 145},
  note = {Paper 10097},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19823}
}

TY  - CPAPER
TI  - Shotgun Microphone with High Directivity by Extra-Long Acoustic Tube and Digital Noise Reduction
AU  - Sasaki, Yo
AU  - Ono, Kazuho
T2  - AES Convention 145
M1  - Paper 10097
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19823
PB  - Audio Engineering Society
LA  - en
AB  - A prototype of a shotgun microphone having higher directivity than a conventional microphone has been developed to capture target sounds clearly. The shotgun microphone has a structure in which an acoustic tube is attached on a directional microphone capsule. The directivity pattern is formed by adjusting an acoustic resistor attached to orifices along the length of the tube. The prototype we developed has a 1-m long acoustic tube designed on the basis of a numerical calculation. It also includes additional microphone capsules and a digital signal processing circuit that reduce undesired acoustical signals arriving from directions other than the front. Measurements show that the developed shotgun microphone prototype achieves even higher directivity than conventional shotgun microphones.
ER  -