An in-depth analysis of the double bass to stage floor contact
2008 (English)In: Proc. of Auditorium Acoustics 2008, 3-5 October 2008, Oslo, Norway: Volume 30, Issue PART 3, Institute of Acoustics , 2008, 37-44 p.Conference paper (Other academic)
While double bassists claim the importance of compliant floors for producing a warm and nuanced sound, the scarce research focusing on this topic has left few conclusions. In the mean time stage floors are constructed with great spread in design and conviction. In the present project floors of several halls were analysed, including the Oslo Concert Hall and Oslo's new Opera House. It was found that in the range where the double bass radiates poorly, i.e., below 100 Hz, and in particular below its Helmholtz resonance at ca 60 Hz, a favourable coupling can take place when the floor is compliant. In such cases the velocity transfer from the instrument's bridge to the floor (via the corpus and end pin) may often rise significantly above zero dB. The coupling, bass to floor, was also seen to affect the bridge mobility and thus the playing properties of the instrument. In the same frequency range the power transfer was observed to boost from about 3 to 40%. It remains to investigate how noticeable this effect is to the audience. Our measurements indicate, however, that a coupling to the stage floor can make an audible difference to the player.
Place, publisher, year, edition, pages
Institute of Acoustics , 2008. 37-44 p.
, Proceedings of the Institute of Acoustics, ISSN 14786095
Concert hall, Frequency ranges, Helmholtz resonance, In-depth analysis, Power transfers
Computer Science Language Technology (Computational Linguistics)
IdentifiersURN: urn:nbn:se:kth:diva-52258ScopusID: 2-s2.0-84871097483ISBN: 978-160560539-5OAI: oai:DiVA.org:kth-52258DiVA: diva2:465554
International Conference on Auditorium Acoustics 2008, 3-5 October 2008, Oslo, Norway
QC 201410132011-12-142011-12-142014-10-13Bibliographically approved