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Banjo timbre from string stretching and frequency modulation

Politzer, David (2015) Banjo timbre from string stretching and frequency modulation. Acta Acustica united with Acustica, 101 (1). pp. 1-4. ISSN 1610-1928. https://resolver.caltech.edu/CaltechAUTHORS:20140813-152640545

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Abstract

The geometry of a floating bridge on a drumhead soundboard produces string stretching that is first order in the amplitude of the bridge motion. This stretching modulates the string tension and consequently modulates string frequencies at acoustic frequencies. Early work in electronic sound synthesis identified such modulation as a source of bell-like and metallic timbre. And increasing string stretching by adjusting banjo string-tailpiece-head geometry enhances characteristic banjo tone. Hence, this mechanism is likely a significant source of the ring, ping, clang, and plunk common to the family of instruments that share floating-bridge/drumhead construction.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.3813/AAA.918798DOIArticle
http://www.ingentaconnect.com/content/dav/aaua/2015/00000101/00000001/art00003PublisherArticle
http://arxiv.org/abs/1406.4907arXivDiscussion Paper
ORCID:
AuthorORCID
Politzer, David0000-0002-4983-6621
Additional Information:© 2015 S. Hirzel Verlag. Received 09 July 2014, accepted 18 September 2014. I would like to thank Frank Rice of Caltech for constructive observations.
Non-Subject Keywords:banjo, frequency modulation, floating bridge, tailpiece
Other Numbering System:
Other Numbering System NameOther Numbering System ID
CALT-TH2014-142
Issue or Number:1
Classification Code:PACS: 43.75.Gh
Record Number:CaltechAUTHORS:20140813-152640545
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140813-152640545
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48535
Collection:CaltechAUTHORS
Deposited By: Joy Painter
Deposited On:14 Aug 2014 21:30
Last Modified:03 Oct 2019 07:04

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