Sound transmission through slits and circular apertures

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Authors

  • A. TROCHIDS School of Engineering, University of Thessaloniki, Greece
  • G. PAPANIKOLAOU School of Engineering, University of Thessaloniki, Greece

Abstract

In this paper the sound transmission through slits and circular apertures is examined. Approximate theoretical expressions for the transmission loss are derived using simple energy balance considerations. Both resonant and nonresonant transmissions are taken into account. Theoretical values of the transmission loss are compared with measurements.

References

[1] C. J. BOUWKAMP, On the transmission of a circular aperture, Physic. Rev., 75, 608 (1949).

[2] Y. NOMURA, S. INAVASHIRO, On the transmission of acoustic waves through a circular channel of a thick wall, Sci. Rep. Tohaku Univ., (1), 12 B, 57 (1960).

[3] M. C. COMPERTS, The sound insulation of circular and slitshaped apertures, Acustica, 14, 1-16 (1964).