Mode Positions & Schroeder Frequencies
Circles = axial mode fundamentals (L, W, H). Dashed lines = Schroeder frequency (modal → statistical transition).
Per-Room Modal Analysis
| Room | Length Mode n=1 | Width Mode n=1 | Height Mode n=1 | Schroeder Freq |
|---|---|---|---|---|
| VO Live B304 | 57.0 Hz | 97.3 Hz | 62.4 Hz | 234 Hz |
| Control Room B311 | 76.2 Hz | 71.2 Hz | 62.4 Hz | 283 Hz |
| Video Studio B312-1 | 35.0 Hz | 74.9 Hz | 62.4 Hz | 180 Hz |
| Editing Suite B312-2 | 35.0 Hz | 98.0 Hz | 62.4 Hz | 247 Hz |
Height mode: All rooms share H = 62.4 Hz because ceiling height is fixed at 275cm AFF across all rooms.
Bolt's Optimal Ratios
Ideal room dimensions follow 1 : 1.14 : 1.39 or 1 : 1.28 : 1.54.
None of our rooms are cuboid (VO Live is trapezoidal, others have irregular boundaries), but the analysis informs treatment placement. Rooms with dimensions that produce coincident modes need targeted bass trapping at those frequencies.
Mode Coincidence Analysis
| Room | Coincidence | Impact | Treatment |
|---|---|---|---|
| VO Live | H=62.4 Hz near L=57.0 Hz | Strong reinforcement at ~60 Hz | 4 bass traps (all corners) + motorized curtain |
| Control | W=71.2 Hz near H=62.4 Hz near L=76.2 Hz | Three modes within 14 Hz — significant bass buildup | 3 corner bass traps + ceiling cloud (SE, D2 blocked) + QRD rear diffusion |
| Studio | H=62.4 Hz isolated from L=35.0 Hz and W=74.9 Hz | Better modal distribution | 3 corner bass traps + ceiling cloud (SW, D4 blocked) |
| Editing | H=62.4 Hz between L=35.0 Hz and W=98.0 Hz | Moderate — wider spacing | 2 bass traps — SW + SE corners |