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The Resonator Banjo Resonator, part 2: What makes ’em “really crack”?

Politzer, David (2015) The Resonator Banjo Resonator, part 2: What makes ’em “really crack”? , Pasadena, CA. (Unpublished) http://resolver.caltech.edu/CaltechAUTHORS:20150624-084156623

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Abstract

A simple experiment quantifies the difference between the sound production of a banjo with and without a resonator back. Driven by a small tweeter mounted inside the pot, for frequencies above about 4500 Hz, the produced external sound is 6 to 10 dB louder with the resonator than without. With the banjo played in any normal fashion, this gives a negligible contribution to the overall volume. However, that difference is clearly a reflection of the universally recognized resonator sound, in close analogy to plosive consonants in human speech. No direct correlation is observed between the head-resonator separation and the spectrum of the enhanced response. This suggests that direct reflection off the back is not a primary contributor to the resonator/openback difference, leaving differences in overall absorption as the major suspect.


Item Type:Report or Paper (Discussion Paper)
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http://www.its.caltech.edu/~politzer/resonator-resonator-2.pdfAuthorDiscussion Paper
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ORCID:
AuthorORCID
Politzer, David0000-0002-4983-6621
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Other Numbering System NameOther Numbering System ID
HDP15-05
Record Number:CaltechAUTHORS:20150624-084156623
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150624-084156623
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58571
Collection:CaltechAUTHORS
Deposited By: H. Politzer
Deposited On:24 Jun 2015 16:31
Last Modified:27 Oct 2017 20:16

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