Helmholtz resonator calculations
All sizes should be inserted in millimeters


Insert construction sizes meanings according to the drawing After insertion, press Calculate
Effective slot depth will be calculated automatically.
Slot widthmm
Slat widthmm
Construction depthmm
Slat thicknessmm
Effective slot depthmm
Resonant frequency:Hz
Applying slats of different cut, making slots of different width, and verifying general depth of the construction you can tune the sound absorber to various frequencies in rather wide range.

Note:
Resonator construction must be hermetic all over the frame outline!
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