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Equal Intensity Contours for Whole-Body Vibrations Compared with Vibrations Cross-Modally Matched to Isophones

  • Sebastian Merchel
  • M. Ercan Altinsoy
  • Maik Stamm
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6851)

Abstract

In this study, two experiments were conducted to determine the curves of equal intensity perception for sinusoidal vertical whole-body vibrations (WBV) of seated subjects over the frequency range from 10 Hz to 250 Hz. Vibrations were presented to subjects using a flat hard seat. In total, 10 participants were asked to match the intensity of different vibrations, using a method of adjustment. The obtained contours were compared with the threshold of vibration and to vibrations cross-modally matched to tones from isophones.

The shapes of the equal intensity contours in the present study show reasonable agreement with the contours from other studies despite the use of different methodologies and experimental questions. The contours show a characteristic similar to the perception threshold. No dependency of vibration magnitude on the shape of the contours was found in the applied dynamic range. However, large inter-individual variations were observed. The results imply that vibration curves that are cross-modally matched to isophones show similar characteristics.

Keywords

Equal Intensity Contour Whole-Body Vibration Isophone Audio-Tactile Perception Cross-Modality Matching 

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References

  1. 1.
    Merchel, S., Altinsoy, M.E.: Cross-Modality Matching of Loudness and Perceived Intensity of Whole-Body Vibrations. In: Nordahl, R., Serafin, S., Fontana, F., Brewster, S. (eds.) HAID 2010. LNCS, vol. 6306, pp. 1–9. Springer, Heidelberg (2010)CrossRefGoogle Scholar
  2. 2.
    Griffin, M.J.: Handbook of Human Vibration. Academic Press, London (1990)Google Scholar
  3. 3.
    Miwa, T.: Evaluation Methods for Vibration Effect, Part 1: Measurements of Threshold and Equal Sensation Contours of Whole-Body for Vertical and Horizontal Vibrations. Industrial Health 5, 183–205 (1967)CrossRefGoogle Scholar
  4. 4.
    Parsons, K.C., Griffin, M.J.: Whole-Body Vibration Perception Thresholds. J. Sound Vib. 121, 237–258 (1988)CrossRefGoogle Scholar
  5. 5.
    Morioka, M., Griffin, M.J.: Absolute Thresholds for the Perception of Fore-and-Aft, Lateral, and Vertical Vibration at the Hand, the Seat, and the Foot. J. Sound Vib. 314, 357–370 (2008)CrossRefGoogle Scholar
  6. 6.
    Bellmann, M.: Perception of Whole-Body Vibrations: From Basic Experiments to Effects of Seat and Steering-Wheel Vibrations on the Passenger’s Comfort Inside Vehicles, Ph.D. Thesis, Carl von Ossietzky Universität Oldenburg (2002)Google Scholar
  7. 7.
    Stamm, M., Altinsoy, M.E., Merchel, S.: Frequenzwahrnehmung von Ganzkörperschwingungen im Vergleich zur auditiven Wahrnehmung I und II. In: Proceedings of DAGA 2010, Berlin, Germany (2010)Google Scholar
  8. 8.
    Merchel, S., Leppin, A., Altinsoy, M.E.: The Influence of Whole Body Vibrations on Loudness Perception. In: ICSV 16, Kraków, Poland (2009)Google Scholar
  9. 9.
    International Organization of Standardisation: ISO 2631-2:1989 Evaluation of Human Exposure to Whole-Body Vibration – Part 2: Continuous and Shock-Induced Vibrations in Buildings (1 Hz to 80 Hz), Geneva (1989)Google Scholar
  10. 10.
    International Organization of Standardisation: ISO 2631-2:2003 Evaluation of Human Exposure to Whole-Body Vibration – Part 2: Vibrations in Buildings (1 Hz to 80 Hz), Geneva (2003)Google Scholar
  11. 11.
    Altinsoy, M.E., Merchel, S.: BRTF - Body Related Transfer Functions for Whole-Body Vibration Reproduction Systems. In: DAGA, Rotterdam, Netherlands (2009)Google Scholar
  12. 12.
    Morioka, M., Griffin, M.J.: Magnitude-Dependence of Equivalent Comfort Contours for Fore-and-Aft, Lateral and Vertical Whole-Body Vibration. J. Sound Vib. 298, 755–772 (2006)CrossRefGoogle Scholar
  13. 13.
    Howarth, H.V.C., Griffin, M.J.: The Frequency Dependence of Subjective Reaction to Vertical and Horizontal Whole-Body Vibration at Low Magnitudes. J. Acoust. Soc. Am. 83(4), 1406–1413 (1988)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Sebastian Merchel
    • 1
  • M. Ercan Altinsoy
    • 1
  • Maik Stamm
    • 1
  1. 1.Chair of Communication AcousticsDresden University of TechnologyGermany

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