Calculate Helmholtz Resonators

Helmholtz Resonator?

How big should a Helmholtz resonator be, and how does it have to be tuned?

For the effectiveness ...

… of a Helmholtz resonator, size and correct tuning are significant. A resonator should ideally have a volume between 300 and 500 liters so that room modes are effectively dampened. By setting up more of them the effect will be improved. To determine the "problem frequency" with the level peaks in the bass range, a frequency plot (SPL measurement) should be carried out with suitable measurement software or by an acoustician.
 
Unit of measurement:
Decimal separator:
Volume (l):
Desired volume of the resonator
Recommended: 300 to 500 liters
Valid range: 100 - 500
Frequency (Hz):
Room mode frequency
Valid range: 20 - 200
Material thickness (mm):
Thickness of the material with the holes
Valid range: 15 - 30 mm
Note
Result
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