Adaptive listening room equalization using a scalable filtering structure in thewave domain

摘要

Massive multichannel reproduction systems like wave field synthesis (WFS) are potentially well suited to be complemented by listening room equalization (LRE). However, their typically large number of reproduction channels makes this task challenging for both computational and algorithmic reasons. Wave-domain adaptive filtering (WDAF) was proposed earlier and is especially well-suited to adaptive filtering tasks in the context of WFS. In this paper, we propose to generalize the model originally used for WDAF to allow an adaptive LRE for a broader range of reproduction scenarios, while maintaining the advantages of the original approach. The proposed approach is evaluated for filtering structures of varying complexity along with considering the robustness to varying listener positions.