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Overtone Characterization of Garner Headjoints Using Spectrographic Analysis and Fast Fourier Transforms

Leung, Cleo D.M.
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396523100

Abstract Details

2014, DMA, University of Cincinnati, College-Conservatory of Music: Flute.
Recent innovations by the Garner Headjoint Company in machine standardizing the making of flute headjoints has allowed us to reopen a seemingly closed discussion into the apparent differences in the power spectrum (strengths of each harmonic in the sound) produced by flutes made of different materials. Because of their standardized geometry, we can be reasonably sure that differences in power spectrum will be due to the variation in metal. Previous studies have implied that the physical composition of the flute is irrelevant to the sonic output. However, in this study, we will approach this problem by eliminating as many variables as possible besides the metals, including replacing the human flutist with an angularly accurate flute machine that plays the headjoints using a source of high purity compressed nitrogen funneled through a copper tube formed into the shape of a flute embouchure. Data acquisition was performed in a mostly anechoic chamber normally used to test the acoustics of jet engines by an array of thirteen microphones. From this, we produced unique physical portraits for six Garner headjoints sounded alone and fitted to silver Yamaha #YFL-587HCT #548, and 14K gold Yamaha YFL-997 HCT # 977A C338. While we were unable to find definite patterns explaining the power spectra we observe, this study represents a first step towards a more complete understanding of the precise effect of the materials used on the sound produced.
Bradley Garner, D.M.A. (Committee Chair)
Steven Cahn, Ph.D. (Committee Member)
Howard Everett Jackson, Ph.D. (Committee Member)
164 p.
Acoustics
Garner Headjoints; headjoints; flute; Michael Geoghagen; Bradley Garner; power spectrum

Recommended Citations

Citations

  • Leung, C. D.M. (2014). Overtone Characterization of Garner Headjoints Using Spectrographic Analysis and Fast Fourier Transforms [Doctoral dissertation, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396523100

    APA Style (7th edition)

  • Leung, Cleo. Overtone Characterization of Garner Headjoints Using Spectrographic Analysis and Fast Fourier Transforms. 2014. University of Cincinnati, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396523100.

    MLA Style (8th edition)

  • Leung, Cleo. "Overtone Characterization of Garner Headjoints Using Spectrographic Analysis and Fast Fourier Transforms." Doctoral dissertation, University of Cincinnati, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1396523100

    Chicago Manual of Style (17th edition)

ucin1396523100
378
© 2014, some rights reserved.Creative Commons License Overtone Characterization of Garner Headjoints Using Spectrographic Analysis and Fast Fourier Transforms by Cleo D.M. Leung is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.