Acoustic Metamaterial

A computational platform for designing acoustic metamaterials — structures with engineered geometries that absorb, redirect, or filter sound beyond what conventional materials can achieve. The system evolves populations of constructive solid geometry (CSG) trees using NSGA-II multi-objective optimization, evaluates their acoustic performance via Transfer Matrix Method simulation, and produces 3D-printable designs.

The geometry types span Helmholtz resonators, labyrinthine channels, triply periodic minimal surfaces, perforated panels, and coiled channels — each tuned through parametric mutation and crossover to maximize absorption across target frequency bands.

Every design ever evaluated is stored in a DuckDB archive. Below, that archive loads directly into your browser via WebAssembly — no server required. You can query it, explore the Pareto front in 3D, and inspect individual absorption spectra.