Acoustic Diffuser Simulator — Schroeder & QRD Room Acoustics

Preset Scenes

Sound Source

Frequency (Hz) 500

Source position X 50%

Incident angle (°) 0°

Diffuser Design

Wells (N prime) 7

Max depth (cm) 15

Absorption (%) 10%

Display

Stats

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Diffusion coeff

500 Hz

Design freq

Ray count

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Surface type

Schroeder QRD
Well depths: d(n) = λ·s(n)/(2N) where s(n) = (n²mod N) are quadratic residue sequences. Random-looking depths scatter sound uniformly in all directions — eliminating flutter echo and room modes.