Sound power and vibration levels for two different piano soundboards
Sound power and vibration levels for two different piano soundboards
This paper compares the sound power and vibration levels for two different soundboards for upright pianos. One of them is made of laminated spruce and the other of solid spruce (tone-wood). These differ also in the number of ribs and manufacturing procedure. The methodology used is defined in two major steps: (i) acoustic power due to a unit force is obtained reciprocally by measuring the acceleration response of the piano soundboards when excited by acoustic waves in reverberant field; (ii) impact tests are adopted to measure driving point and spatially-averaged mean-square transfer mobility. The results show that, in the mid-high frequency range, the soundboard made of solid spruce has a greater vibrational and acoustic response than the laminated soundboard. The effect of string tension is also addressed, showing that is only relevant at low frequencies.
1-11
Squicciarini, Giacomo
c1bdd1f6-a2e8-435c-a924-3e052d3d191e
Veliente, Pablo Miranda
21cd4b94-7b37-4855-a945-5f054ba3b39f
Thompson, David
bca37fd3-d692-4779-b663-5916b01edae5
3 October 2016
Squicciarini, Giacomo
c1bdd1f6-a2e8-435c-a924-3e052d3d191e
Veliente, Pablo Miranda
21cd4b94-7b37-4855-a945-5f054ba3b39f
Thompson, David
bca37fd3-d692-4779-b663-5916b01edae5
Squicciarini, Giacomo, Veliente, Pablo Miranda and Thompson, David
(2016)
Sound power and vibration levels for two different piano soundboards.
Journal of Physics: Conference Series, 744 (1), .
(doi:10.1088/1742-6596/744/1/012091).
Abstract
This paper compares the sound power and vibration levels for two different soundboards for upright pianos. One of them is made of laminated spruce and the other of solid spruce (tone-wood). These differ also in the number of ribs and manufacturing procedure. The methodology used is defined in two major steps: (i) acoustic power due to a unit force is obtained reciprocally by measuring the acceleration response of the piano soundboards when excited by acoustic waves in reverberant field; (ii) impact tests are adopted to measure driving point and spatially-averaged mean-square transfer mobility. The results show that, in the mid-high frequency range, the soundboard made of solid spruce has a greater vibrational and acoustic response than the laminated soundboard. The effect of string tension is also addressed, showing that is only relevant at low frequencies.
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Accepted/In Press date: 12 August 2016
Published date: 3 October 2016
Organisations:
Dynamics Group
Identifiers
Local EPrints ID: 399585
URI: http://eprints.soton.ac.uk/id/eprint/399585
ISSN: 1742-6588
PURE UUID: 50b0bf10-e54f-4074-bd8f-3d78b87ec9ef
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Date deposited: 19 Aug 2016 12:32
Last modified: 15 Mar 2024 05:49
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Author:
Pablo Miranda Veliente
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