Sound absorption coefficient of thermally modified and unmodified wood species measured in an impedance tube

  • Different parts of the guitar body are made of certain wood species, selected by their specific properties. The sound board, which is mainly made of spruce or cedar, transfers the vibration of the strings to the resonance body by means of the bridge. The sides and the back of the guitar rather reflect the sound of the acoustic vibrations and are predominantly made of tropical hardwoods like palisander, mahogany or ebony species. These species have limited availability and are listed on the CITES Annex I and II. To substitute tropical wood species, thermally modified European wood species with improved acoustic properties and dimensional stability may be used. Although the acoustic reflection of the sides and the back parts of a guitar body is an important property, there is not much knowledge about this reflection behaviour of wood. A few studies like the work of Hong (1989), Kang (2010) or Smardzewski et al. (2013) investigated the sound absorption properties of unmodified wood. Subsequently this study considers the sound absorptionDifferent parts of the guitar body are made of certain wood species, selected by their specific properties. The sound board, which is mainly made of spruce or cedar, transfers the vibration of the strings to the resonance body by means of the bridge. The sides and the back of the guitar rather reflect the sound of the acoustic vibrations and are predominantly made of tropical hardwoods like palisander, mahogany or ebony species. These species have limited availability and are listed on the CITES Annex I and II. To substitute tropical wood species, thermally modified European wood species with improved acoustic properties and dimensional stability may be used. Although the acoustic reflection of the sides and the back parts of a guitar body is an important property, there is not much knowledge about this reflection behaviour of wood. A few studies like the work of Hong (1989), Kang (2010) or Smardzewski et al. (2013) investigated the sound absorption properties of unmodified wood. Subsequently this study considers the sound absorption coefficients of unmodified and thermally modified European wood species in comparison to an unmodified tropical wood species.show moreshow less

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Author:Christoph Munk, Lothar Clauder, Alexander PfriemORCiDGND
URN:urn:nbn:de:kobv:eb1-opus-2890
Parent Title (English):Northern European Network for Wood Science and Engineering (WSE) - 15th Annual Meeting 2019
Document Type:Conference Proceeding
Language:English
Year of Completion:2019
Date of Publication (online):2022/06/22
Date of first Publication:2019/10/10
Publishing Institution:Hochschule für nachhaltige Entwicklung Eberswalde
Release Date:2022/06/22
Tag:TMT; impedance tube; sound absorption coefficient
Institutions / Departments:Fachbereich Holzingenieurwesen
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 629 Andere Fachrichtungen der Ingenieurwissenschaften
open_access (DINI-Set):open_access
University Bibliography:University Bibliography
Zweitveröffentlichung
Peer-Review / Nicht ermittelbar
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International
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