Theater Lip Front-Fill & Under-Balcony Arrival-Time & Comb-Seam Shading Solver

Deterministic 2D venue cross-section acoustic ray-path travel-time delta + equal-SPL crossover seam phase-alignment & Haas precedence offset engine (.pdf, .svg, .csv, .json) built for Meyer Sound, d&b audiotechnik, L-Acoustics, Adamson — zero-upload ephemeral Wasm RAM execution.

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