Evaluation of the Circular Harmonics Decomposition for WDAF-based Active Listening Room Compensation

Rabenstein R, Spors S. Evaluation of the Circular Harmonics Decomposition for WDAF-based Active Listening Room Compensation. In: AES Conference: 28th International Conference: The Future of Audio Technology--Surround and Beyond. Audio Engineering Society; 2006. Paper 4-2. Available from: https://aes.org/publications/elibrary-page/?id=13836

@inproceedings{Rabenstein2006_13836,
  author = {Rabenstein, Rudolf and Spors, Sascha},
  title = {{Evaluation of the Circular Harmonics Decomposition for WDAF-based Active Listening Room Compensation}},
  booktitle = {AES Conference: 28th International Conference: The Future of Audio Technology--Surround and Beyond},
  note = {Paper 4-2},
  year = {2006},
  month = jun,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13836}
}

TY  - CPAPER
TI  - Evaluation of the Circular Harmonics Decomposition for WDAF-based Active Listening Room Compensation
AU  - Rabenstein, Rudolf
AU  - Spors, Sascha
T2  - AES Conference: 28th International Conference: The Future of Audio Technology--Surround and Beyond
M1  - Paper 4-2
PY  - 2006
DA  - 2006/06/06
UR  - https://aes.org/publications/elibrary-page/?id=13836
PB  - Audio Engineering Society
LA  - en
AB  - The underlying theory of most massive multichannel spatial sound reproduction systems assumes ideal, e. g. free-field propagation characteristics in the listening room. The effects of non-ideal listening rooms can be reduced by active listening room compensation. A very efficient realization of such a system is given by wave-domain adaptive filtering. Here spatio-temporal signal transformations are used to transform the adaptation problem into a highly reduced representation. However, the optimal transformation depends on the acoustic properties of the listening room, which are in general not known a-priori. Practical implementations therefore use listening room independent transformations. This paper evaluates the circular harmonics decomposition as wave domain transformation. Its favorable properties are demonstrated by simulations and laboratory measurements.
ER  -