Plan acoustic treatment and choose materials.
Acoustic treatment is the process of controlling reflections, resonances, and reverberation time using absorbing and diffusing structures. Proper treatment turns an ordinary room into a controlled acoustic environment where you can trust what you hear: bass stays clean, stereo image stays accurate, and midrange remains transparent.
There are three main absorber types. Porous materials (mineral wool, fiberglass, acoustic foam) are effective at mid and high frequencies, from 500 Hz upward; their thickness and air gap determine the lower cutoff. Helmholtz resonators and membrane (panel) absorbers work in a narrow low-frequency range, tuned to a specific problematic mode, typically 40 to 200 Hz. Multi-layer constructions combine both principles for broadband absorption.
The key principle: treatment must be based on analysis data, not guesswork. First identify problem frequencies, reverberation time, and early reflection zones. Then select the type and quantity of absorbers that address your specific issues — without over-absorption that makes the room feel dead, and without under-treatment that leaves problems untouched.
8 treatment tools
Place panels, bass traps, and diffusers on an interactive room layout. Estimate the effect on RT60.
Materials catalog with absorption coefficients by octave band from 125 to 4000 Hz.
Design acoustic absorbers: porous, Helmholtz resonators, membrane, and multi-layer constructions.
Calculate absorption of mineral wool, fiberglass, and foam. Effect of thickness, density, and air gap.
Design resonators for targeted absorption at a specific low frequency.
Design panel (membrane) absorbers for low-frequency control. Panel mass, cavity depth.
Combine porous and resonant layers for broadband absorption from 60 to 4000 Hz.
Cost-benefit analysis: compare material costs vs. acoustic improvement for different approaches.
1. Analysis. Open the Room Analysis section for a full acoustic profile: modes, RT60, SBIR. Note the problem frequencies and current reverberation time.
2. Material selection.Use the "Acoustic Materials Database" to compare absorption coefficients across octave bands. Pay attention to NRC and material behavior in the range of problem frequencies.
3. Absorber design. For mid and high frequencies, use the porous absorber calculator. For bass traps, use the Helmholtz resonator or membrane absorber calculator. For broadband coverage, try multi-layer design.
4. Layout planning.Place the calculated elements in the "Treatment Planner" and estimate the expected RT60 change. Verify that treatment covers early reflection zones and corners with maximum modal pressure.
5. Budget assessment.Open "Treatment ROI" to compare the cost of different approaches and prioritize investments by effectiveness.