Develop an interactive room acoustics calculator webapp for analyzing room modes in audio spaces. Support both rectangular and L-shaped room configurations with dual input methods: direct numerical entry (length, width, height) and graphical drawing board for wall sketching. Enable interactive subwoofer placement within room layouts. Calculate axial, tangential, and oblique room modes using the formula f = (c/2) × (n/L) where c ≈ 343 m/s. Implement real-time visualization of room geometry, frequency response, mode distribution, and pressure mapping. Include responsive UI with live updates, supporting critical frequencies 20-200 Hz. Target audiophiles, studio planners, and acousticians seeking optimal subwoofer positioning and resonance identification for improved acoustic quality. implement a 3D Visualization with the possibility to change the positioning of the subwoofer via drag and drop
