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No.28 (1985/2) >

 
Title :楽器音倍音スペクトルの因子分析 2
Title alternative :Factor Analysis of the Harmonic Spectra of the Instrumental Sound 2
Authors :山口, 喜七郎
屋良, 朝夫
Authors alternative :Yamaguchi, Kishichiro
Yara, Asao
Issue Date :1985-2
Abstract :The technique of factor analysis is applied to the identification of the tone of sounds of trumpet, flute and oboe. The wave forms of sample sounds are decomposed with Fourier transform, and transformed to sets of harmonic amplitude spectra. These sets of relative amplitudes of harmonics, which are normalized for each sound, are the data variables, and they are analyzed with the principal factor method. As a result, although several factors are formally extracted, we can find that the first factor for each instrument, which has the largest contribution, is physically significant and showes the representative pattern of harmonic spectra of the sound of the instrument. Another factor that is oblique to the first forctor was obtained for each of these three instruments.
Type Local :紀要論文
ISSN :0386-5746
Publisher :琉球大学教育学部
URI :http://hdl.handle.net/20.500.12000/1888
Citation :琉球大学教育学部紀要 第二部 no.28 p.51 -58
Appears in Collections:No.28 (1985/2)

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