HVAC Duct Rumble, Hiss & Room Noise Criterion (NC/RC) Rater

Deterministic ANSI S12.2 Octave-Band Tangent NC Curve + ASHRAE RC Rumble-Hiss Balance engine (.wav, mic) built for Daikin, Mitsubishi Electric, Systemair, Trox — zero-upload ephemeral Wasm RAM execution.

+ Drop File

Cloudflare Ephemeral Wasm RAM · 0% Retention

DETERMINISTIC VERDICT

Double-click 2.4× zoom · Drag to pan / 3D orbit

Free Deterministic X-Ray Preview

Running ephemeral Wasm verification…

Verified Engineering Output

Instant unlock via Apple Pay / Card (Paddle Merchant of Record) · 1-click automated refund, zero support tickets.

HeyCheck Cloud Compilers · Deterministic Zero-Upload Wasm Execution Terms Privacy Refund Policy