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Fibers and Polymers

, Volume 4, Issue 4, pp 199–203 | Cite as

Sound characteristics according to cross-sectional shapes of fibers

  • Chunjeong Kim
  • Gilsoo ChoEmail author
  • Kyoung A Hong
  • Hyun Joo Shim
Article

Abstract

In order to investigate the effects of cross-sectional shapes on the sound characteristics of polyester fibers, 10 specimens were woven into a twill structure made of round, hollow, triangular, u-shape, cruciform, and composite cross-sectional (▴/▴, ()/▴,Y y) fibers. Their rustling sounds were recorded, and their sound spectra were obtained from FFT analysis. Physical sound parameters (LPT, ΔL, Δf) and Zwicker’s psychoacoustic parameters of the loudness(Z), sharpness(Z), roughness(Z), and fluctuation strength(Z) were calculated from the sound spectra. According to noncircular cross-section fibers, the hollow shaped fiber had the highest value of LPT, ΔL, loudness(Z), and fluctuation strength(Z). The triangular shaped fiber had a lower value of LPT, ΔL, loudness(Z), and roughness(Z) than those of the round shaped fiber. Among composite cross-section fibers, C1 (▴/▴) and C3 (Y y) had higher values of LPT, ΔL, Δf, and loudness(Z) but C2 (()/▴) had lower values. Also the LPT, ΔL, sharpness(Z), and roughness(Z) values of different denier were similar to each other, but the Δf and loudness(Z) values increased as the denier increased.

Keywords

Rustling sound Physical sound property Psychoacoustic parameter Noncircular cross-section Composite fiber 

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Copyright information

© The Korean Fiber Society 2003

Authors and Affiliations

  • Chunjeong Kim
    • 1
  • Gilsoo Cho
    • 1
    Email author
  • Kyoung A Hong
    • 1
    • 2
  • Hyun Joo Shim
    • 1
    • 2
  1. 1.Department of Clothing and TextilesYonsei UniversitySeoulKorea
  2. 2.Department of Textile EngineeringSoong-Sil UniversitySeoulKorea

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