All demonstrationsINVERSE ACOUSTICS / RUST CPU

Give a sound its shape.

Choose a chord and ask Rust to design a polygonal membrane. Inspect the returned shape, animate its computed vibration modes and compare requested and obtained tones.

shape_the_soundTry the real call
Concept artwork · not calculation evidence
01 / UNDERSTAND THE METHOD

Shape a sound. Hear the result.

INPUT PREVIEW · RUN TO CALCULATE
Choose a case. Then bring it to life.

Preset buttons change the inputs. Calculation starts only when you ask.

THE INVERSE ACOUSTIC ATELIER

Give a sound its shape.

Choose the notes. Ask Rust to find a membrane. Explore the shape it actually returns.

DESIGN BENCH PREVIEW

Inputs only. Start the calculation with the button above. One cent is 1/100 of a semitone.

Concept illustration of the inverse acoustic atelierPreparing the acoustic atelier…
Illustrative bench · no candidate calculatedGold: target ratios · mint: returned ratios

No vibration is shown until the engine returns a modal mesh. The display mesh is coarser than the solver mesh.

THE REQUESTED CHORD1 : 1.25 : 1.5

From your input · fundamental 196 Hz.

THE RETURNED CHORDAwaiting your calculation

No spectrum is inferred from the illustration.

Playback is a quiet 1.8-second sum of pure sine tones, not the sound of a physical drum. Requested tones use your inputs; returned tones use the engine’s frequencies. No sound starts automatically. Playback requires every tone to lie between 20 and 8,000 Hz; frequencies are never transposed.

Model: a connected, uniform, planar membrane with a fixed edge. Air, damping and material stiffness are not included. Shape refinement is checked with the shared forward solver, not an independent method.

02 / ASK THE ACTUAL TOOL

Make it your experiment.

Complete tool arguments

Arrays, coordinates and nested contracts remain editable here. Units and limits are checked by the real tool.

Runs only when you press the button. Input edits discard the previous displayed result. Public compute limits apply.

KNOW WHAT THE RESULT MEANS

Useful evidence needs boundaries.

  • The model is a connected, uniform, planar membrane with a fixed edge. Free edges, nonuniform materials, damping and air coupling are outside its scope.
  • A bounded search that does not meet the target is not a proof of impossibility. An exact-target exclusion is distinct from exclusion of the full tolerance window.
  • The final check reuses the forward finite-element solver. Estimated discretization errors are not rigorous bounds and do not constitute independent certification.
  • The fundamental is numerically tuned when both fundamental_hz and wave_speed are supplied. Returned values and resolution warnings remain authoritative.
  • Modal displacement is normalized and exaggerated; animation is slowed. Playback uses synthetic sine tones, not a physical drum model or recording.
  • The number of evaluations is bounded; the native engine does not guarantee a maximum wall-clock duration.
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