A class of re?ector localization techniques use multichannel room impulse responses (RIRs) for the visualization of room re?ections on 2D maps. In this paper, we focus on a setup comprising a linear loudspeaker array and a single microphone, which has become practically more relevant given the growing popularity of soundbars. First, the state-of-the-art visualization techniques developed for the generation of 2D time-domain direction-of-arrival (DOA) maps describing the temporal evolution of room re?ections are reviewed, and then an alternative high-resolution mapping approach is introduced. The performances of the existing techniques and the proposed method are compared using simulated and experimental multichannel RIR data generated in various room conditions.
Tuna, Cagdas; Prinn, Albert; Knauff, Felix; Walther, Andreas; Habets, Emanuël
Affiliations: International Audio Laboratories Erlangen; International Audio Laboratories Erlangen; Fraunhofer Institute for Integrated Circuits IIS; Fraunhofer Institute for Integrated Circuits IIS; International Audio Laboratories Erlangen(See document for exact affiliation information.)
AES Convention: 148 (May 2020) Paper Number: 10332
Publication Date: May 28, 2020
Subject: Room Acoustics
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