Reduction of Number of Inverse Filters for Boundary Surface Control

Kashiwazaki H, Omoto A. Reduction of Number of Inverse Filters for Boundary Surface Control. In: AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science. Audio Engineering Society; 2018. Paper EB2-6. Available from: https://aes.org/publications/elibrary-page/?id=19659

@inproceedings{Kashiwazaki2018_19659,
  author = {Kashiwazaki, Hiroshi and Omoto, Akira},
  title = {{Reduction of Number of Inverse Filters for Boundary Surface Control}},
  booktitle = {AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science},
  note = {Paper EB2-6},
  year = {2018},
  month = jul,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19659}
}

TY  - CPAPER
TI  - Reduction of Number of Inverse Filters for Boundary Surface Control
AU  - Kashiwazaki, Hiroshi
AU  - Omoto, Akira
T2  - AES Conference: 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science
M1  - Paper EB2-6
PY  - 2018
DA  - 2018/07/06
UR  - https://aes.org/publications/elibrary-page/?id=19659
PB  - Audio Engineering Society
LA  - en
AB  - Boundary surface control (BoSC) is a useful method to reproduce sound ?eld physically. However, playback requires multi-channel inverse ?ltering and it is dif?cult to real-time processing with a simple computer like a laptop. Therefore, the authors proposed an “rough” reproduction system by a method for thinning out inverse ?lters of BoSC. This engineering brief report discusses which inverse ?lter should be thinned out. As a result of numerical simulation, the accuracy of the sound ?eld reproduction decreased relatively slightly when using a directional microphone array and deleting the ?lter passing through the loudspeaker far from the microphone.
ER  -