Heavy Acoustic Curtain Acoustic Properties \u2014 Absorption Coefficients (125Hz\u20134kHz)
Multi-layer theatre-weight curtains (800-1200 g/m²) with deep pleating (50-100% fullness). Used for variable acoustics in performance spaces, studios, and multi-purpose rooms. Retractable for acoustic tuning.
Absorption Coefficients by Octave Band
| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 |
|---|---|---|---|---|---|---|
| α (absorption) | 0.05 | 0.15 | 0.40 | 0.65 | 0.80 | 0.85 |
RT60 Impact
Deploying 12m² of heavy curtain across a wall in a 100m³ room reduces RT60 by approximately 0.18s at 500Hz
Manufacturers & Brands
Frequently Asked Questions
What is the NRC of Heavy Acoustic Curtain?
Heavy Acoustic Curtain has an NRC (Noise Reduction Coefficient) of 0.55, calculated as the arithmetic mean of absorption coefficients at 250, 500, 1000, and 2000 Hz per ASTM C423.
Where is Heavy Acoustic Curtain typically used?
Heavy Acoustic Curtain is typically used as a wall (window) and room divider treatment. Multi-layer theatre-weight curtains (800-1200 g/m²) with deep pleating (50-100% fullness).
How much does Heavy Acoustic Curtain reduce RT60?
Deploying 12m² of heavy curtain across a wall in a 100m³ room reduces RT60 by approximately 0.18s at 500Hz
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