A binaural rendering addon based on the EBU ADM Renderer has been developed, which renders Next Generation Audio scenes using virtual loudspeaker systems. During development, two optimization approaches emerged regarding rendering quality and efficiency. The first approach concerns the rendering of coherent signals from different emitter positions, which is particularly relevant for virtual speakers since object positioning is based on amplitude panning. The second approach concerns the reduction of computational costs when rendering the binaural room response by using different virtual speaker layouts for the rendering of the direct path and of the room response. To evaluate both approaches, a listening test was conducted. The results of this test showed that each approach positively influenced either rendering quality or performance.

Authors: Lau, Felix; Meier, Michael
Affiliation: Institut für Rundfunktechnik
AES Convention: 148 (May 2020) Paper Number: 10325
Publication Date: May 28, 2020
Subject: Spatial Audio

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