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Shaping reverberating sound fields with an actively tunable metasurface.


ABSTRACT: A reverberating environment is a common complex medium for airborne sound, with familiar examples such as music halls and lecture theaters. The complexity of reverberating sound fields has hindered their meaningful control. Here, by combining acoustic metasurface and adaptive wavefield shaping, we demonstrate the versatile control of reverberating sound fields in a room. This is achieved through the design and the realization of a binary phase-modulating spatial sound modulator that is based on an actively reconfigurable acoustic metasurface. We demonstrate useful functionalities including the creation of quiet zones and hotspots in a typical reverberating environment.

SUBMITTER: Ma G 

PROVIDER: S-EPMC6042092 | biostudies-literature |

REPOSITORIES: biostudies-literature

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