| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7152871 | Applied Acoustics | 2014 | 5 Pages |
Abstract
A Helmholtz resonator is placed in a room with distinct acoustic modes, and is tuned to one of the corresponding resonant frequencies. The optimal resonator damping ratio is investigated, as a goal-dependent value. For example, minimizing reverberation time requires a different damping ratio from minimizing the sound pressure level. The optimum damping values for a Helmholtz resonator are analytically computed, and then verified by means of experimentation. Furthermore, a construction is introduced which allows for a fine adjustable setting for the eigenfrequency and the damping ratio of the resonator.
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Authors
J. Klaus, I. Bork, M. Graf, G.-P. Ostermeyer,