Abstract
Acoustic signals emitted by multiple sources in a room are mixed together due to reverberation, resulting in a loss of intelligibility of speech. Here, we demonstrate that the acoustic channel matrix among multiple inputs and outputs can be controlled with reflective reconfigurable intelligent surfaces by the mean of wavefield shaping. We show how 2×2 and 4×2 channels can be customized almost at will. This research has many potential applications, including scenarios such as enhanced indoor speech communications and recognition.
Original language | English |
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Title of host publication | META 2023 Paris - France |
Subtitle of host publication | The 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Proceedings |
Editors | Philippe Lalanne, Said Zouhdi |
Publisher | META Conference |
Pages | 497-498 |
Number of pages | 2 |
Publication status | Published - 18 Jul 2023 |
Event | 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023 - Paris, France Duration: 18 Jul 2023 → 21 Jul 2023 https://metaconferences.org/META23/files/meta23_proceedings.pdf |
Publication series
Name | International Conference on Metamaterials, Photonic Crystals and Plasmonics |
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ISSN (Print) | 2429-1390 |
Conference
Conference | 13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023 |
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Country/Territory | France |
City | Paris |
Period | 18/07/23 → 21/07/23 |
Internet address |