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Perception-based Design of Virtual Rooms for Sound Reproduction

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A perception-based parametric model to design auditory virtual environments using a limited small number of reflections and a model of diffusion was used to simulate virtual environments in a binaural (2 channels) and a wave field synthesis (more than 28 channels) reproduction system. Different perceptual parameters such as the room-size, the distance to the source(s), the positioning of the sources(s), the apparent source width, and more can be adjusted by simple control parameters. Rather than recreating a real room as accurately as possible, the main goal was to design nice-sounding environments for speech and music-reproduction. The achieved quality of the resulting virtual rooms is compared to the quality of measured real rooms.

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