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Schedule as of Oct 11, 2022 - subject to change

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Thursday, October 20 • 10:20am - 10:40am
Boundary Conditions of the Dome Compression Chamber of Horn Drivers

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Previous publications on the acoustics of the dome-shaped compression chamber assumed the Neumann boundary conditions (zero velocity) at the periphery of the chamber. In this work, three configurations of the compression chamber having different boundary conditions are analyzed. In one of them, the chamber has a Neumann boundary condition. In the second configuration, the compression chamber is loaded by the voice coil gap. In the third configuration, the compression chamber is positioned on the convex side of the dome, and the air cavity above the surround is an extension of the compression chamber. For the dome-shaped chamber, the solution was searched in spherical coordinates as an analytical presentation of the Legendre function by the Mehler-Dirichlet integral form. In the second and third configurations, the impedance of the voice coil gap and the air cavity adjacent to the diaphragm’s surround was approximated analytically.

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avatar for Alexander Voishvillo

Alexander Voishvillo

Harman Fellow, Acoustics Engineering, Harman Professional
Alexander Voishvillo was born and grew up in Saint Petersburg, Russia where he graduated from the State University of Telecommunications. He worked at Popov Institute for Radio and Acoustics. He designed loudspeakers and studio monitors and did research on loudspeakers and transducers... Read More →


Thursday October 20, 2022 10:20am - 10:40am EDT
2D02/03
  Transducers, Papers Oct 19 & 20