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🎵 Helmholtz Resonator Calculator
Calculate resonant frequency and acoustic properties of Helmholtz resonators
📐 Helmholtz Resonator Formulas
f₀ = (c/2π) × √(A/(V × L))
Q = 2π × f₀ × V/(c × A)
Bandwidth = f₀/Q
Impedance = ρc/A × (1 + jωV/(cA))
f₀ = resonant frequency, c = speed of sound, A = neck area, V = cavity volume, L = neck length
Resonant Frequency:
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Quality Factor:
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Bandwidth:
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Acoustic Impedance:
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💡 Tips & Information
- Smaller neck = higher resonant frequency
- Larger cavity = lower resonant frequency
- Quality factor indicates resonance sharpness
- Used in musical instruments and noise control
- Optimal when neck length ≈ neck diameter