RoomMode Acoustic Plan

RoomMode Acoustic Plan is a paid, local-first planning desk for project studios, control rooms, edit suites, listening rooms, and small acoustic spaces. Enter room length, width, height, target RT60, and temperature. The modal engine calculates axial, tangential, and oblique eigenmodes up to 300 Hz, groups close axial collisions, and estimates Schroeder frequency from room volume and decay target. A spectrum view makes low-frequency density and high-risk clusters easy to compare across revisions. Placement maps normalized speaker and listening positions, verifies symmetry and boundary clearance, and estimates the first front-wall SBIR cancellation from speaker offset. Treatment Schedule records absorber, bass trap, diffuser, and cloud surfaces with dimensions, depth, and quantities while calculating total face area. Audit checks dimension ranges, listening-zone clearance, speaker symmetry, RT60 target, treatment scope, and modal cluster count. Export the complete plan as JSON or every calculated mode as CSV. Save multiple rooms locally and duplicate a complete room as a revision. No login is required. The app has no subscription, in-app purchases, ads, analytics, tracking, microphone access, audio recording, cloud sync, AI processing, or developer-operated backend. Predictions are planning aids; verify construction, absorption coefficients, boundary behavior, and final response with calibrated on-site measurements.