Local Sound Field Synthesis by Virtual Acoustic Scattering and Time-Reversal

Spors S, Ahrens J, Helwani K. Local Sound Field Synthesis by Virtual Acoustic Scattering and Time-Reversal. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8529. Available from: https://aes.org/publications/elibrary-page/?id=16055

@inproceedings{Spors2011_16055,
  author = {Spors, Sascha and Ahrens, Jens and Helwani, Karim},
  title = {{Local Sound Field Synthesis by Virtual Acoustic Scattering and Time-Reversal}},
  booktitle = {AES Convention 131},
  note = {Paper 8529},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16055}
}

TY  - CPAPER
TI  - Local Sound Field Synthesis by Virtual Acoustic Scattering and Time-Reversal
AU  - Spors, Sascha
AU  - Ahrens, Jens
AU  - Helwani, Karim
T2  - AES Convention 131
M1  - Paper 8529
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16055
PB  - Audio Engineering Society
LA  - en
AB  - Sound field synthesis techniques, like Wave Field Synthesis and near-field compensated higher order Ambisonics, aim at synthesizing a desired sound field within an extended area using an ensemble of individually driven loudspeakers. Local sound field synthesis techniques achieve an increased accuracy within a restricted local listening area at the cost of stronger artifacts outside. This paper proposes a novel approach to local sound field synthesis that is based upon the scattering from a virtual object bounding the local listening area and the time-reversal principle of acoustics. The physical foundations of the approach are introduced and discussed. Numerical simulations of synthesized sound fields are presented, as well as a comparison to other published methods.
ER  -