Vibración — real-time cymatics

Chladni — eigenmodes

powder gathers on the nodes

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Faraday — water real

parametric instability, responds at Ω/2

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Music

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Pattern detail medio

Coarse on the left, fine on the right. Drives the parameters of both simulations at once.

Signal generator

Output volume 0.70

A · Chladni plate

Fundamental f₀ 90 Hz Q (resonance sharpness) 45 Nodal line width 0.045 Persistence (time smoothing) 0.82

B · Faraday waves

Ω minimum (low audio) 0.30 Ω maximum (high audio) 1.80 Surface tension σ 0.050 Viscosity ν (kills short waves) 0.030 Drive gain F 0.300

Ω follows the live audio.

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What you are looking at

A solves the real eigenmodes of a membrane or plate and excites them with the spectral energy of your audio through a damped resonant response. The figure you see is the one that frequency actually produces.

B integrates the linearised free-surface equations with an oscillating effective gravity. Water responds at half the drive frequency, which is the Faraday signature.

Panel B is dimensionless: real water at 440 Hz would make sub-millimetre capillary ripples. The Ω sliders map the audio onto a visible range.