Construction Guide

Treatment Layouts

Per-room acoustic treatment placement plans. Every panel, bass trap, QRD diffuser, and manual curtain — positioned and justified.

VO Live — B304

5 absorption panels · 3 full-height corner bass traps · 3× 125Hz membrane · 0 QRD · 1 manual curtain · ceiling cloud (28% coverage) · vinyl floor. The tightest NC target (NC-12) demands maximum absorption coverage. Room (equiv. rectangle for modal/area) 3.19 × 1.33 × 2.75 m · 4.24 m² · 11.66 m³ · RT60 0.217 s.

WallTypeTreatmentQtyPositionNotes
North (W1, STC 65)Concrete + RSICAbsorption panels2Evenly spaced, 120cm AFF centerPrimary absorption wall
North (W1)Concrete + RSICBass traps2NE + NW corners, floor-to-ceiling300mm corner placement
North (W1)Concrete + RSIC125Hz membrane1Lower wall band, below panel gridTuned trap f0≈123Hz, 1200×600
South (W6, STC 53)VO/Control partitionNone0D3 + OW-1 occupy wall — no room for panels
East (W5, STC 55)Buffer spineAbsorption panels2Evenly spaced, 120cm AFF centerBuffer spine face
East (W5)Buffer spineBass trap1SE corner, floor-to-ceilingFull-height corner placement
East (W5)Buffer spine125Hz membrane1Lower wall bandTuned trap f0≈123Hz, 1200×600
West (W2, STC 65)NW diagonal concreteAbsorption panel1Diagonal faceRSIC-V clips behind — custom fit for W2 angle
West (W2)NW diagonal concrete125Hz membrane1Lower wall bandTuned trap f0≈123Hz, 1200×600

Acoustic Curtain (Manual)

Fabric
450 g/m² acoustic velour, double-layered
Coverage
3.2 m²
Operation
Hand-pulled on ceiling C-rail track
Track
Ceiling-mounted C-rail
Dead position (retracted)
RT60 0.20s
Live position (deployed)
RT60 0.27s

Total: 5 panels, 3 full-height corner bass traps, 3× 125Hz membrane, 1 manual curtain, 1 ceiling cloud (28%), vinyl floor

Control Room — B311

3 absorption panels · 3 full-height corner bass traps + 1 soffit trap (NE corner, above D3) · 3× 125Hz membrane · 2 QRD diffusers · ceiling cloud (28% coverage) · carpet floor. First-reflection control for stereo monitoring accuracy. 50mm absorption behind monitors. Room (equiv. rectangle for modal/area) 2.58 × 2.70 × 2.75 m · 6.97 m² · 19.17 m³ · NC-18 · RT60 0.307 s.

WallTypeTreatmentQtyPositionNotes
North (W6, STC 53)VO/Control partitionNoneObservation wall — D3 + OW-1 window, no wall-mounted treatment
South (W4, STC 50)Rebuilt partitionBass trap1SW corner, floor-to-ceiling300mm corner placement
East (W5, STC 55)Buffer spineSoffit trap1NE corner (above D3)D2 deleted (Rev2) — Control uses external D5; soffit trap retained to keep SE floor clear
CeilingSuspended cloudCeiling cloud128% coverage, centeredBroadband ceiling absorption
South (W4, STC 50)Rebuilt partitionAbsorption panel1Rear wall, centeredAdded for NC-18 / RT60 0.307 s
South (W4, STC 50)Rebuilt partition125Hz membrane2Lower wall bandTuned trap f0≈123Hz, 1200×600
South (W4)Rebuilt partitionQRD diffusers2Rear wall center, 80×80cm eachRear diffusion for stereo image
East (W5, STC 55)Buffer spineAbsorption panel1First-reflection point, ~120cm AFF, ~75cm from north[AC] Critical for stereo imaging
East (W5)Buffer spineBass trap1NE corner, floor-to-ceilingFull-height — SE corner served by soffit trap (NE corner, above D3)
West (W2, STC 65)NW diagonal concreteAbsorption panel1First-reflection point, mirror of east panel[AC] Critical for stereo imaging
West (W2)NW diagonal concreteBass trap1NW corner, floor-to-ceilingFull-height corner placement
West (W2)NW diagonal concrete125Hz membrane1Lower wall bandTuned trap f0≈123Hz, 1200×600
Front wallMonitor wall50mm absorptionBehind Genelec 8030C L+R monitorsReduces front-wall reflections

Total: 3 panels, 3 full-height corner bass traps + 1 soffit trap (NE corner, above D3), 3× 125Hz membrane, 2 QRD, 1 ceiling cloud (28%), carpet floor

Video/Podcast — B312-1

6 absorption panels · 6 DEEP superchunk bass traps (400–600 mm) · 4× 125Hz membrane (≈123 Hz) · deep perimeter bass soffit · in-shot area rug (≈6 m²) · ceiling cloud (28% coverage) · isolated Unistrut lighting grid · multi-colour curtain backdrop (North + East north-half) · vinyl floor · COL_W free-standing column. The multi-colour curtain backdrop now carries the video mid/high absorption, so rigid wall treatment is lean. HIGH 3.40 m ceiling. Room 4.79 × 4.13 × 3.40 m · 19.78 m² · 67.3 m³ · NC-18 · RT60 0.284 s.

WallTypeTreatmentQtyPositionNotes
North (W1, STC 65)Curtain backdrop zoneMulti-colour curtainFull North wall + NE wrapMotorised track on independent slab-anchored neoprene isolation hangers, 40cm off wall — NO rigid treatment here
East (W3, STC 62) north-halfCurtain backdrop zoneMulti-colour curtain (L-wrap)East wall north-halfPart of the NE L-wrap backdrop — no rigid treatment
East (W3, STC 62) south-halfServer wallAbsorption panels2South portion, flankingOff the curtain zone
SE cornerW3/W4 cornerSuperchunk bass trap1SE corner, floor-to-ceiling400–600mm deep superchunk
South (W4, STC 50)Rebuilt partitionAbsorption panels2Evenly spaced, center sectionMerged former footprint
South (W4)Rebuilt partition125Hz membrane2Lower wall bandTuned trap f0≈123Hz, 1200×600
SW cornerW4/W5 cornerSuperchunk bass trap1SW corner, floor-to-ceiling400–600mm deep superchunk
West (W5, STC 55)Buffer spineAbsorption panels2Camera side, evenly spacedBuffer spine face
West (W5)Buffer spine125Hz membrane1Lower wall bandTuned trap f0≈123Hz, 1200×600
East (W3) south-halfServer wall125Hz membrane1Lower wall bandTuned trap f0≈123Hz, 1200×600
COL_WFree-standing columnSuperchunk bass traps4Re-entrant angles around column400–600mm deep superchunks (NOT NW — North is the curtain backdrop)
PerimeterMEP bulkheadDeep bass soffit1Perimeter bulkhead≥300mm mineral-wool fill + sealed cavity, α₁₂₅≈0.55
CeilingSuspended cloudCeiling cloud128% coverage, centeredKept lean to preserve the tall 3.40m ceiling look
CeilingIsolated gridUnistrut lighting pipe grid1Isolated hangersClamp-on fixtures — hung on isolated hangers, NOT on the decoupled ceiling
FloorIn-shotArea rug1Centre, in-shot≈6 m² — breaks vertical floor/ceiling flutter left by the lean cloud
Note: 6 DEEP superchunk bass traps (400–600 mm): SE + SW wall corners + 4 at COL_W re-entrant angles (NOT NW — the North wall is the multi-colour curtain backdrop). The deep perimeter bass soffit (MEP bulkhead, ≥300mm mineral-wool fill, α₁₂₅≈0.55) and the in-shot area rug (≈6 m²) control low-end and vertical flutter. Ceiling cloud kept lean at 28% to preserve the tall 3.40 m look; isolated Unistrut lighting grid on independent hangers. 125 Hz membranes tuned ≈123 Hz.

Total: 6 panels, 6 DEEP superchunk bass traps (400–600 mm), 4× 125Hz membrane (≈123 Hz), deep perimeter bass soffit, in-shot area rug (≈6 m²), 1 ceiling cloud (28%), isolated Unistrut lighting grid, multi-colour curtain backdrop (North + East north-half), vinyl floor, COL_W free-standing column

Treatment Summary

RoomPanelsCorner Bass Traps125Hz MembraneQRDCeiling CloudCurtain
VO Live B30453 (full-height)3028%1 manual
Control Room B31133 (full-height) + 1 soffit3228%
Video/Podcast B312-166 superchunk (400–600mm)4028%1 backdrop
TOTALS (installed)14 + 2 QRD = 1612 traps + 1 soffit1023 clouds1 manual + 1 backdrop

Treatment count logic (MediaVerse S3 / acoustics5): 14 absorption panels installed (5 VO + 3 CR + 6 Video/Podcast) + 2 QRD diffusers. Order absorption to cover 10% waste buffer (≈16). Bass traps: 12 (VO 3 + CR 3 + Video/Podcast 6 superchunk 400–600 mm) + 1 Control soffit trap (NE corner, above D3). 125Hz membrane traps: 10 (VO 3 + Control 3 + Video/Podcast 4, tuned ≈123 Hz). Ceiling clouds: 3 (VO 28%, Control 28%, Video/Podcast 28%). Video/Podcast also has a multi-colour curtain backdrop (North + East north-half), a deep perimeter bass soffit, an in-shot area rug (≈6 m²), an isolated Unistrut lighting grid, and a COL_W free-standing column.

Mounting Method
French cleat / Z-clip

Must be removable for electrical access behind panels

Panel Core
Rockwool RWA45, 50mm

1200×600mm, NRC 0.90 at 500Hz, Class A fire-rated fabric