Prediction of the listening area based on the energy vector

Eric Kurz, Matthias Frank

Research output: Chapter in Book/Report/Conference proceedingConference paper


For some time, Higher-Order Ambisonics is a research topic in reproducing three-dimensional sound fields. Among others objectives, research aims at sound field reproduction over a large listening area. For predicting the spatial quality of reproduced sound the so-called energy vector (rE-vector) is a commonly used tool. At the central listening position, the energy vector provides good results for predicting position and width of a phantom sources. However, at off-center listening positions, the performance of the classic energy vector becomes worse. This paper compares different extensions of the energy vector model. The extensions try to include time and level differences, as well as the precedence effect in dependence of the listening position. Simulations investigate the existing loudspeaker arrangement IEM CUBE for Ambisonic playback of up to 5th order and calculate the extended energy vectors for discrete points within the whole listening area. The resulting localization accuracy at these points can be summarized to predict areas with sufficient localization accuracy.
Original languageEnglish
Title of host publicationProceedings of ICSA 2017
ISBN (Print)9783981283082
Publication statusPublished - Sept 2017
Event4th International Conference on Spatial Audio - University of Music and Performing Arts Graz, Graz, Austria
Duration: 7 Sept 201710 Sept 2017


Conference4th International Conference on Spatial Audio

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