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Perception-Based Design of Virtual Rooms for Sound Reproduction

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 environ-ments in a binaural (2 channels) and a wave field synthesis (more than 28 channels) reproduc-tion 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 ad-justed by simple control parameters. Rather than recreating a real room as accurately as possi-ble, 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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