Home▸Acoustics▸Helmholtz Resonator Bottle: Pitch, Neck, End Correction and Damping Lab

🍾 Helmholtz Resonator Bottle: Pitch, Neck, End Correction and Damping Lab

Interactive Helmholtz resonator: bottle pitch from volume, neck length and radius with end correction, radiation and boundary-layer damping, frequency sweep, ring-down, spectrum and pitch versus water level, with RK4 numerical checks.

Acoustics2DEasy60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

Simulate the Helmholtz resonance of a bottle: pitch from cavity volume, neck length, radius and end correction, with radiation and boundary-layer damping, a measured frequency sweep, free ring-down and the pitch rise as water is poured in.

Helmholtz resonatoracousticsresonancebottledamped oscillatorCanvas 2D

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install