Effect of heat treatment on the acoustic properties of a wooden xylophone keyboard

Ho Yang Kang, Chun Won Kang, Seung Hyun Hong, Junji Matsumura

Research output: Contribution to journalArticle

Abstract

To estimate changes in the acoustic properties of a wooden xylophone keyboard caused by heat treatment, the resonant frequencies and logarithmic decrement of control and heat-treated specimens of Yezo spruce (Picea jezoensis), Northern red oak (Quercus rubra) and Japanese red pine (Pinus densiflora S. et Z.) were evaluated by the free vibration method. A flexural vibration test was carried out by the xylophone stick free fall impact test. The changes in resonant frequency of the first mode and those of other modes by heat treatment were evaluated. And the changes in logarithmic decrement by heat treatment were evaluated. As a result of heat treatment, the resonant frequencies of the 1st mode of all specimens were decreased, and within a species the wood specimens of higher resonant frequencies were more influenced. In the case of the specimen with a higher resonant amplitude at the 2nd mode resonance frequency, the resonant amplitude of the 1st mode resonance frequency was increased more by heat treatment, so that the sound became more stable.

Original languageEnglish
Pages (from-to)157-163
Number of pages7
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume61
Issue number1
Publication statusPublished - Feb 1 2016

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keyboards
acoustic properties
Acoustics
Hot Temperature
heat treatment
Pinus densiflora
Quercus rubra
Vibration
vibration
Picea jezoensis
Picea
Quercus
Pinus
testing
heat

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

Cite this

Effect of heat treatment on the acoustic properties of a wooden xylophone keyboard. / Kang, Ho Yang; Kang, Chun Won; Hong, Seung Hyun; Matsumura, Junji.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 61, No. 1, 01.02.2016, p. 157-163.

Research output: Contribution to journalArticle

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