3 production rooms + buffer spine — complete acoustic data, treatment specifications, and HVAC routing for each space.
The buffer spine is the acoustic separation wall between the west zone (VO Live + Control) and the east zone (Video/Podcast). It is the only permitted HVAC duct routing path between zones. (Door D2 deleted in Rev2 — the buffer is not a walk-through corridor; it is the isolation break + HVAC path.)
| Parameter | Value |
|---|---|
| West face X | 213.6 cm |
| East face X | 228.6 cm |
| Thickness | 15 cm |
| Wall type | W5 — STC 55 (field 49–53) |
| Assembly | 2×12.5mm gyp+GG + 100mm studs+RW + 2×12.5mm gyp+GG |
| Silencer runs through | All 5 (A, B, B1, B2, C) |
| Column | COL_W at (369.1, 140.6) — 10mm air gap [AC] |
D1 (to Video/Podcast, opens out) and D5 (to Control, opens out) are the external entry points — both swing outward for egress + interior floor space (outside landings at both). The buffer spine (W5, STC 55) separates west and east zones. Door D2 is deleted (Rev2) — Control is entered only via its own external D5. D3 + the VO/Control partition + the OW-1 observation window form the sound-lock on the Control–VO Live path.