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TechTown Acoustics 2.0 — SSOT GEOMETRY

STATUS: LOCKED (2026-03-04)

THIS FILE IS THE SINGLE SOURCE OF TRUTH (SSOT) FOR ALL GEOMETRY.

DO NOT MODIFY. DO NOT DEVIATE. ALL CALCULATIONS MUST USE THESE VALUES.

Source: Source/2026-03-04_Final-Layouts-04-03-2026.dxf (Authoritative DXF, 2026-03-04)

Cross-ref: Source/2026-03-04_MediaVerse-Reference.png (Obai's dimensioned plan)

Extraction: Source/2026-03-04_DXF-Extraction-Report.md (Full DXF analysis)


Project Identity


Dimensions LOCKED

Wall Measurements

WallLength (cm)Length (m)Notes
South wall7377.37Entry side, interior partition
North wall8608.60Concrete exterior — WIDER than south
East wall4314.31Perpendicular height, gypsum to B313
NW diagonal4484.48Concrete exterior facade

Shape: Right Trapezoid

Floor Plan Drawing

Cross-referenced with Source/2026-03-04_MediaVerse-Reference.png — North at top, matching architectural convention

SSOT GEOMETRY — Zone Floor Plan (B3 Yellow Zone) Right Trapezoid — North ↑ — Origin at SW corner — All dimensions in cm SW (0, 0) SE (737, 0) NE (737, 431) NW (-123, 431) 860 cm (8.60 m) — NORTH 737 cm (7.37 m) — SOUTH 431 cm (4.31 m) — EAST 448 cm (4.48 m) DIAGONAL COL-W 60×50 COL-E 60×55 North faces aligned at Y=161 334 60 333 50 111 270 Width Formula W(Y) = 7.37 + (Y/4.31) × 1.23 m Room WIDENS going north (↑) Gross Area: 34.42 m² ½ × (737+860) × 431 Vol: 120.5 m³ (raw) / 94.66 m³ (eff @ 2.75m) B313 SERVER ROOM (east) 10 N S Structural Column Vertex Point Dimension Line Column Alignment

Vertex Coordinates (origin at SW corner)

PointX (cm)Y (cm)X (m)Y (m)Description
SW000.000.00South wall, west end (diagonal base)
SE73707.370.00South wall, east end
NE7374317.374.31North wall, east end
NW-123431-1.234.31North wall, west end (1.23m WEST of SW)

Diagonal Verification


Area & Volume

ParameterValueFormula
Gross area34.42 m²½ × (737 + 860) × 431 = 344,153.5 cm²
Ceiling to slab3.50 m (350 cm)Gypsum T-bar at 2.90m is removable
Raw volume120.5 m³34.42 × 3.50
Float floor deduction-15 cmNeoprene pads + plywood
Ceiling plenum deduction-60 cmT-grid + insulation + ducts + services (see SSOT)
Acoustic ceiling height2.75 m (275 cm)350 - 15 - 60
Effective volume94.66 m³34.42 × 2.75

Width Formula

W(Y) = 7.37 + (Y / 4.31) × 1.23 meters

(Y = distance from south wall in meters, room WIDENS going north)

Y from south (m)Width E-W (m)Notes
0.007.37South wall (narrowest)
0.507.51
1.007.66
1.117.69Column row
1.507.80
2.007.94
2.508.08
3.008.23
3.508.37
4.008.51
4.318.60North wall (widest)

Column Positions (PNG-VERIFIED 2026-03-04)

ColumnSize (cm)Center (m)Zone Faces (cm from SW)Notes
COL-WEST60 × 50(3.64, 1.36)W:334 E:394 S:111 N:161In-zone structural column
COL-EAST60 × 55(7.57, 1.33)W:727 E:787 S:106 N:161Mostly embedded in east wall (~10 cm visible inside, ~50 cm past wall)
DXF extraction (v03 initial) found wrong polylines shifted 71 cm west — PNG reference is authoritative for column X positions

Key Project Parameters

ParameterValue
HVAC systemDaikin VRF (Variable Refrigerant Flow)
Indoor unitU380 near SE corner
Zone count5: VO Live, Control, Video/Podcast, Editing, Sound Lock + Buffer Spine
NC-15 targetVO Live Room (box-in-box)
NC-25 targetControl Room, Video/Podcast Studio
NC-30-35 targetEditing workstations
Buffer spineREQUIRED
Server room (B313)East wall, 55-65 dB(A), 10 cm gap

DXF Coordinate Mapping

PointDXF X (m)DXF Y (m)Transform
SW-67.326-144.217zone_x = (dxf_x + 67.326) × 100 cm
SE-59.956-144.217zone_y = (dxf_y + 144.217) × 100 cm
NE-59.956-139.911
NW-68.556-139.911

Authoritative Files (v03 — CURRENT)


Created: 2026-03-04 | Updated: 2026-03-04 (PNG-verified column correction — DXF extraction had wrong polylines)
Author: Claude (Opus 4.6) | Status: LOCKED