Research on the Possibility of Applying Acoustic Metamaterials for the Protection of Speech Information

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dc.contributor.authorLytvynenko, Nazarii
dc.contributor.authorMorshch, Yevhen
dc.date.accessioned2026-03-03T10:11:58Z
dc.date.available2026-03-03T10:11:58Z
dc.date.issued2025
dc.description.abstractThe paper analyzes modern methods of technical protection of speech information and proposes a novel approach using acoustic metamaterials. The features of existing passive and active speech protection measures (soundproof constructions, sound-absorbing materials, noise jammers) are considered, as well as the characteristics of traditional sound absorbers and their limitations at low frequencies. The principles of constructing acoustic metamaterials, in particular resonance-based and periodic metastructures are presented, and the physical effects (Bragg band gaps, wave localization, negative effective mass density, etc.) that enable metamaterials to achieve extraordinarily high sound absorption in the speech frequency range are discussed. Recommendations are given for practical implementation of such panels in secure facilities and for evaluating their effectiveness using speech intelligibility criteria. It is concluded that acoustic metamaterials are a promising new means of technical protection of speech information, not yet covered by current standards.
dc.format.pagerangeP. 84-92
dc.identifier.citationLytvynenko, N. Research on the Possibility of Applying Acoustic Metamaterials for the Protection of Speech Information / Nazarii Lytvynenko, Yevhen Morshch // Theoretical and Applied Cybersecurity: scientific journal. – 2025. – Vol. 7, No. 3. – P. 84-92. – Bibliogr.: 13 ref.
dc.identifier.doihttps://doi.org/10.20535/tacs.2664-29132025.3.344659
dc.identifier.urihttps://ela.kpi.ua/handle/123456789/79180
dc.language.isoen
dc.publisherIgor Sikorsky Kyiv Polytechnic Institute
dc.publisher.placeKyiv
dc.relation.ispartofTheoretical and Applied Cybersecurity: scientific journal, Vol. 7, No. 3
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.uk
dc.subjectspeech information
dc.subjectacoustic metamaterials
dc.subjectsound-absorbing materials
dc.subjecttechnical information protection
dc.subject.udc004.056.5:699.844
dc.titleResearch on the Possibility of Applying Acoustic Metamaterials for the Protection of Speech Information
dc.typeArticle

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Theoretical and Applied Cybersecurity: scientific journal, Vol. 7, No. 3