For DIY rooms & makers with a laser or CNC
Fix how your room sounds — and cut the panel tonight.
Describe the problem in plain words. Fresnelcut picks the right acoustic panel, shows a live preview, and hands you laser/CNC-ready cut files. No acoustics degree required.
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Say what's wrong
"Echoey," "boomy," "boxy." We translate it into the right target — no jargon needed.
Get the right panel
Correct Schroeder math, checked against published examples — not the hobbyist shortcut. See it live.
Cut it tonight
Dimensioned SVG & DXF in real millimetres, a cut list, and a hang guide — straight into your machine.
Six panel types, one workflow
Diffusers scatter reflections, absorbers remove energy. Pick a type below to see the math, a worked example, and a live designer for it.
1D QRD1D Quadratic-Residue Diffuser (QRD)The classic well-and-fin panel that scatters horizontally.1D PRD1D Primitive-Root Diffuser (PRD)A QRD cousin that suppresses the straight-back reflection.2D QRD2D Quadratic-Residue DiffuserA grid of square wells that scatters in both directions.Skyline2D Skyline DiffuserThe block-city look — a 2-D primitive-root height map.Slat absorberSlat (Slotted) AbsorberWood slats over a damped cavity — tames low-mid boom.Perforated absorberPerforated-Panel AbsorberA drilled panel over a cavity — a tunable mid trap.
New to acoustic treatment?
Short, plain-English guides — then browse the panel types and design one that sizes itself to your wall.