Optimizing Wide-Area Sound Reproduction Using a Single Subwoofer with Dynamic Signal Decorrelation

Hill AJ, Moore J. Optimizing Wide-Area Sound Reproduction Using a Single Subwoofer with Dynamic Signal Decorrelation. In: AES Convention 146. Audio Engineering Society; 2019. Paper 10181. Available from: https://aes.org/publications/elibrary-page/?id=20314

@inproceedings{Hill2019_20314,
  author = {Hill, Adam J. and Moore, Jonathan},
  title = {{Optimizing Wide-Area Sound Reproduction Using a Single Subwoofer with Dynamic Signal Decorrelation}},
  booktitle = {AES Convention 146},
  note = {Paper 10181},
  year = {2019},
  month = mar,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=20314}
}

TY  - CPAPER
TI  - Optimizing Wide-Area Sound Reproduction Using a Single Subwoofer with Dynamic Signal Decorrelation
AU  - Hill, Adam J.
AU  - Moore, Jonathan
T2  - AES Convention 146
M1  - Paper 10181
PY  - 2019
DA  - 2019/03/06
UR  - https://aes.org/publications/elibrary-page/?id=20314
PB  - Audio Engineering Society
LA  - en
AB  - A central goal in small room sound reproduction is achieving consistent sound energy distribution across a wide listening area. This is especially difficult at low-frequencies where room-modes result in highly position-dependent listening experiences. While numerous techniques for multiple-degree-of-freedom systems exist and have proven to be highly effective, this work focuses on achieving position-independent low-frequency listening experiences with a single subwoofer. The negative effects due to room-modes and comb-filtering are mitigated by applying a time-varying decorrelation method known as dynamic diffuse signal processing. Results indicate that spatial variance in magnitude response can be significantly reduced, although there is a sharp trade-off between the algorithm’s effectiveness and the resulting perceptual coloration of the audio signal.
ER  -