Acoustic Curtain Calculator
Estimate how much echo and mid/high-frequency noise heavy, full curtains will dampen in a room. Set the fabric, fullness, coverage, lining and layers for an indicative dB and echo-reduction read — honestly.
Curtains soften echo — they do NOT soundproof.
Fabric absorbs mid and high frequencies (voices, TV, clatter, reverb) so a room sounds calmer and less echoey. It will not stop low-frequency traffic rumble, bass or structure-borne noise — that needs mass: better glazing, laminated/double glass, sealed gaps, a heavier wall or an air gap. What helps a curtain most is floor-to-ceiling + wall-to-wall coverage, dense mass, and an air gap behind the fabric. Treat the numbers below as a relative guide, not a guaranteed measurement.
Your curtains
Heavier, fuller, fully covering fabric with an acoustic interlining and a second layer earns a higher absorption score. The biggest single lever is going floor-to-ceiling and wall-to-wall, with an air gap behind.
Indicative dampening
0 dB
of perceived mid/high-frequency reduction — not low-frequency rumble
Absorption score
65 / 100
Echo reduction
65%
reverb / liveliness
What is driving the score
Each factor's contribution to the 0–100 absorption score.
Quiet a noisy room with DesignAI
DesignAI suggests the fabric, layering and coverage that tame echo — and flags when you actually need glazing or a wall instead.
Related Guides — Deep-dive reading
Soundproof & Acoustic Curtains: What They Can (and Can't) Do (India 2026)
The honest acoustics guide — heavy, full, floor-to-ceiling curtains absorb echo and soften mid-high noise, but no curtain blocks low-frequency traffic rumble like a wall. Here is what actually helps, by how much, and what it costs.
Window TreatmentsHome Theatre Door in India: Acoustic Sealing, STC Ratings and Costs (2026)
Why a normal door ruins a media room - and how to spec a heavy solid-core acoustic door with full perimeter seals, a drop-down bottom seal, light-tight finish and (for serious rooms) a double-door airlock.
Home Doors & EntrancesAcoustic Wall Panels: The Complete Guide for Indian Homes
The walls that quiet a room — how acoustic panels absorb sound, the panel types, how they're installed, where they help most, and the crucial difference between absorption and soundproofing.
Wall FinishesRelated Tools — You may also find these useful
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