| Zugriffsnummer | 51041 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Measurement of facade sound insulation: influence of loudspeaker type |
| Autor(in); Institution |
Worch, Anatol; Bauphysik Worch, Kamen, GERMANY; Hochschule Bielefeld, Bielefeld, GERMANY
Stange-Kölling, Sylvia; 1.7, Akustik und Dynamik, PTB-Braunschweig
Picker, Kevin; 1.7, Akustik und Dynamik, PTB-Braunschweig
|
| Quelle/Jahr | Proceedings of Forum Acusticum 2023: 10th Convention of EAA:(2023), 1 - 7 |
| Herausgeber(in) |
Astolfi, Arianna
|
| ISBN | 978-88-88942-67-4 |
| URL | |
| Verlag | Torino: European Acoustics Association |
| Konferenzangaben | Forum Acusticum 2023, Turin, 11-15, September, 2023, Italy |
| Freie Schlagworte | sound insulation ; facade ; measurement ; dodecahedron ; facade speaker |
| Zusammenfassung | The measurement of the sound insulation of facades is standardised in ISO 16283-3. There, the measurement direction is from outdoors to indoors. The facade is excited either by existing traffic noise or by a loudspeaker. The standard permits the use of a facade speaker or an omnidirectional one. To investigate the sound fields in the plane of the facade produced by different loudspeaker types, measurements with a dodecahedron and a facade speaker are performed in the hemianechoic room at PTB on a hemispherical surface. Measured sound pressure levels are then projected to hypothetical facades. Observed sound pressure level differences on the facades are then compared to the maximum permitted values given in ISO 16283-3 and to the directivity of both speaker types measured in free field. Furthermore, results from an interlaboratory test with about 90 participating laboratories are analysed. In this test, the element loudspeaker method was used to determine the apparent sound reduction index of a terrace door made of glass. Since participants used either dodecahedrons or facade speakers, possible differences between results obtained with different loudspeaker types can be analysed. Since these measurements took about three years, additional effects like temperature changes are also considered. |
| Kostenfreier Zugang | Freier Zugang |
| Rechteinformation | Unported License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Themenbereich der Metrologie | Akustik, Ultraschall, Beschleunigung |