Interactive Tool

Acoustic Calculator

Live calculations for RT60, room modes, STC estimation, and NC analysis. All defaults sourced from ACOUSTIC-CONSTANTS.js.

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Volume (m³)
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Area (m²)
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Rooms

RT60 Calculator

Sabine and Eyring reverberation time across 6 octave bands (125 Hz - 4 kHz).

Quick Load

Select a MediaVerse room to auto-fill dimensions and materials:

Room Dimensions

Along longest axis
Perpendicular to length
Floor to ceiling

Volume

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L x W x H (m³)

Total Surface Area

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S = 2(LW + LH + WH) (m²)

Surface Materials

Results by Octave Band

Freq (Hz) Total A (m²) Sabine RT60 (s) Eyring RT60 (s) Target (s) Status
Click "Calculate RT60" to see results
Sabine Equation RT60 = 0.161 x V / A
where A = Σ (αi x Si)
Eyring Equation RT60 = 0.161 x V / [ -S x ln(1 - αavg) ]
where αavg = A / S

Modal Frequency Calculator

Axial, tangential, and oblique room modes with coincidence detection.

Quick Load

Room Dimensions

Room Mode Frequency f(p,q,r) = (c/2) x sqrt[ (p/L)² + (q/W)² + (r/H)² ]
Schroeder Frequency fs = 2000 x sqrt( RT60 / V )

STC Estimator

Build a wall assembly and estimate its Sound Transmission Class.

MediaVerse Presets

Load an existing wall construction:

Wall Assembly Builder

Options

RSIC Clips (resilient channel)
Staggered Studs
Mass Law (field incidence) TL = 20 x log10( m x f ) - 47.3 dB
where m = surface mass (kg/m²), f = frequency (Hz)

NC Level Calculator

Plot background noise against standard NC curves and compare to room targets.

Room Target

Background Noise Levels (dB SPL per octave band)

NC Rating Determination NC = max curve where all octave band levels ≤ curve values

Export Results

Copy the calculated results as text, or use the button below.

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