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Modular Architecture for Virtual-World Parametric Spatial Audio Synthesis

An adaptation of a parametric spatial audio coding method, Directional Audio Coding (DirAC), has been previously developed and validated for virtual-world applications. Although the quality in most cases is very good, it was noticed that some auditory scenes, e.g., ones containing multiple sources in acoustically dry conditions, are not produced optimally. In this paper, the architecture of this virtual-world DirAC is restructured and modified to avoid previous problems. In addition, these modifications achieve better scalability for the algorithm.

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