Chladni Plate Mode

signal-synthesis · 37 views
signal-synthesisperiodic

What It Is

Square plate vibration eigenmode with free edges, Z_{n,m}(x,y) = cos(nπx/L)cos(mπy/L) − cos(mπx/L)cos(nπy/L), evaluated on a √size × √size grid and raster-scanned to 1D. Mode (n,m) drawn per call from {(3,1),(5,2),(4,3),(7,2),(6,5)} --- non-trivial Chladni figures with intersecting nodal lines. The 2D nodal pattern is the canonical plate-vibration positive control: sand falls to nodal lines where Z=0. Raster encoding produces row-periodicity at stride √size + slower across-row modulation, mirroring the row/column lattice that Chladni geometry's nodal_* and plate_low_mode_fraction metrics target.

Interpretation

Standard analysis sees: no strongly notable standard properties. The atlas finds no named structure, but the source is distinctively extreme on Nonstationarity:regime_persistence (+3.5z) — beyond what the standard bank predicts for it.

What standard analysis sees
tail heaviness0.52
asymmetry0.44
occupancy0.72
short-range corr0.72
long-range memory0.18
spectral colour0.37
periodicity0.84
complexity0.17
time-irreversibility0.71
volatility clustering0.71
multifractality0.64
dimensionality0.50
nonstationarity0.72
What the atlas adds
Atlas-extreme metrics the standard bank can’t predict for this source
Nonstationarity:regime_persistence+3.5zbank-miss 2.3σ

Composition

dtypeuint8
range[0, 255]
unique values251 / 16384
mean ± std127 ± 45.5

Render Gallery

Atlas Position

Nearest neighborDistance
Ruelle-Takens Cascade4.15cross-origin
Tidal Gauge (SF)4.25cross-origin
Kuramoto Oscillators4.35cross-origin

Open in Atlas →

Which Geometries Light Up

This source does not rank extreme on any metric.

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