Room Acoustics & Treatment
Room frequency analyzer, acoustic panel placement calculator, speaker placement optimizer, bass trap calculator, Sabine RT60 reverberation time calculator, first reflection point finder, diffuser designer, sound isolation estimator, and studio monitor calibrator — for home studio builders, music producers, acoustic designers, and audiophiles.
Available Tools
Room Frequency Analyzer
Measure your room’s frequency response using pink noise or frequency sweep with microphone input. Identify resonant peaks, frequency nulls, and room modes on a response curve with an axial-mode overlay and treatment hints. Uncalibrated guide; nothing recorded.
Launch tool →Acoustic Panel Placement Calculator
Calculate optimal positions for acoustic panels based on room dimensions, speaker location, and listening position. Visual 2D room diagram showing panel placements at reflection points, material recommendations, and budget-tier options.
Launch tool →Speaker Placement Optimizer
Find the ideal speaker and listening position for your room dimensions. Calculates the 38% listening rule, equilateral triangle, wall distances, toe-in, the front-wall SBIR null frequency, and subwoofer placement — with a top-down room diagram for home studios and home theater.
Launch tool →Reverb Time Designer
Design target reverberation times for any room type — recording studio, concert hall, classroom, lecture hall, or vocal booth. Recommended RT60 ranges from acoustic standards, the absorption needed to hit them (Sabine), a panel estimate, and a before/after decay curve.
Launch tool →Room Ratio Analyzer
Evaluate your room’s length, width, and height ratios against the Bolt area and ITU-R BS.1116 / IEC standards for even low-frequency modes. Bolt-chart plot, near-integer (modal pile-up) flags, and the nearest published preferred ratio (Sepmeyer, Louden, golden) for studio planning.
Launch tool →First Reflection Point Finder
Calculate the exact first reflection points on walls, ceiling, and floor for your speaker and listening positions. 2D room diagram showing the reflection paths, the classic “mirror trick” explained, and recommended panel sizes for each point.
Launch tool →Bass Trap Calculator
Calculate bass trap depth and tuning to tame low-frequency room modes. Porous quarter-wave depth vs membrane resonator (f₀ = 60/√(m·d)) with panel thickness by material, room-mode targeting, corner placement, and DIY build guidance.
Launch tool →Absorption Coefficient Calculator
Look up typical sound absorption coefficients for common materials at 125, 250, 500, 1k, 2k, and 4k Hz. Calculate NRC, enter custom materials, convert area to sabins, and compute total sabins needed to reach your target RT60.
Launch tool →Studio Monitor Calibrator
Check your studio monitors with pink noise and your mic. Per-channel frequency response overlay (left vs right), relative L/R balance, EQ hints, and the 85 dB SPL reference-level procedure. Uncalibrated guide; nothing recorded.
Launch tool →Diffuser Design Calculator
Design QRD (quadratic residue diffuser) and Skyline acoustic diffusers with calculated well depths for your target frequency range. Visual diagram, residue sequence, bandwidth and panel size — for DIY builders and acoustic designers.
Launch tool →Room EQ Advisor
Measure your room’s frequency response and get parametric EQ correction suggestions. Identifies which problems are best solved with EQ vs physical treatment, provides filter settings (frequency, gain, Q), and shows a before/after simulation. Cuts peaks, never boosts nulls.
Launch tool →Sabine RT60 Calculator
Calculate reverberation time (RT60) using the Sabine equation. Input room volume, surface areas, and material absorption coefficients. RT60 at multiple frequency bands, Eyring equation option for high absorption rooms, and interactive material add/remove.
Launch tool →Sound Isolation Estimator
Estimate STC and transmission loss from a panel’s mass (mass law + ASTM E413), and compare against typical STC ratings for common wall, floor, glass, and door assemblies. Frequency-by-frequency TL graph, STC meaning guide, and code note. Typical data — get a test for compliance.
Launch tool →Bonello Criterion Checker
Check your room dimensions against the Bonello criterion for even modal distribution. Calculates all axial, tangential, and oblique room modes, displays Bonello histogram with pass/fail assessment, and compares results with Bolt area recommendations.
Launch tool →