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arXiv · 2401.03441

Spatial Reverberation and Dereverberation using an Acoustic Multiple-Input Multiple-Output System

Hai Morgenstern·Boaz Rafaely
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Abstract

Methods are proposed for modifying the reverberation characteristics of sound fields in rooms by employing a loudspeaker with adjustable directivity, realized with a compact spherical loudspeaker array (SLA). These methods are based on minimization and maximization of clarity and direct-to-reverberant sound ratio. Significant modification of reverberation is achieved by these methods, as shown in simulation studies. The system under investigation includes a spherical microphone array and an SLA comprising a multiple-input multiple-output system. The robustness of these methods to system identification errors is also investigated. Finally, reverberation and dereverberation results are validated by a listening experiment.

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Hai Morgenstern, Boaz Rafaely. 2024-01-07. Spatial Reverberation and Dereverberation using an Acoustic Multiple-Input Multiple-Output System. https://doi.org/10.17743/jaes.2016.0063

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