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Acoustic admittance

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Measure of flow of acoustic energy.

Acoustic admittance
Common symbolsYf
Other units(m/s)/Pa

Acoustic admittance is the measure of the flow of acoustic energy. It is measured in cubic meters per second (m/s), per pascal (Pa). By nature, acoustic impedance is the reciprocal of acoustic admittance. Immittance is a concept which combines both acoustic admittance and acoustic impedance.

Acoustic admittance is widely used in bioacoustics where immittance is indispensable for its ability to assist with differential diagnosis of middle ear disease using tympanometry. Acoustic admittance also has applications in construction and engineering, and has been utilized to research and develop an open-cell polyurethane foam that had mean pore sizes of 0.01 - 0.08 cm and a fibrous structure.

References

  1. ^ Damico, Jack S.; Ball, Martin J. (2019). The SAGE Encyclopedia of Human Communication Sciences and Disorders. SAGE Publications, Inc. doi:10.4135/9781483380810. ISBN 978-1-4833-8083-4.
  2. Lilly, David (April 20, 2005). "The Evolution of Aural Acoustic-Immittance Measurements". The ASHA Leader. 10 (5): 6–24. doi:10.1044/leader.FTR2.10052005.6. ISSN 1085-9586.
  3. Lambert, Robert F. (April 1, 1983). "Surface acoustic admittance of highly porous open‐cell, elastic foams" (PDF). pubs.aip.org. ISSN 0001-4966. Retrieved May 20, 2023.
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