Szczegóły publikacji
Opis bibliograficzny
Specific properties of phase characteristics of Distributed Mode Loudspeakers / Karol CZESAK, Piotr KLECZKOWSKI // Vibrations in Physical Systems = Drgania w Układach Fizycznych ; ISSN 0860-6897. — 2023 — vol. 34 no. 2 art. no. 2023213, s. 1–12. — Bibliogr. s. 12, Abstr.
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Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 153122 |
|---|---|
| Data dodania do BaDAP | 2024-05-28 |
| Tekst źródłowy | URL |
| DOI | 10.21008/j.0860-6897.2023.2.13 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Vibrations in Physical Systems = Drgania w Układach Fizycznych |
Abstract
Distributed Mode Loudspeakers (DMLs) are characterized by a specific principle of operation, based on bending oscillations of a plate with a certain stiffness and dimensions. Because of this property DML produce a diffuse sound field in the proximity of the loudspeaker. In this work a series of phase characteristics measurements of a DML was carried out, which were compared with analogous ones, carried out for a conventional electrodynamic loudspeaker with a pistonic diaphragm. The elevations of measurement points were chosen in order to coincide with the most likely positions of a listener relative to the DML. A measurement on the axis of the transducer was also conducted. The results have demonstrated that the variability of phase value resulting as a function of frequency and localization of a measurement point is high. It may be concluded, that the DML is a non-minimum phase system, with some frequency regions of minimum phase behaviour. These regions are strongly dependent on the point of measurement.
