What You'll Need
Mac running macOS 12.0 or later
Calibrated measurement microphone
Speakers/system in final positions
Quiet room for measurement
1
Download & Install
2 minutes- 1Download Sounn Room Correction from the website
- 2Open the DMG and drag to Applications
- 3Launch Sounn and complete the onboarding wizard
- 4Grant microphone permission when prompted
2
Configure Devices
3 minutes- 1Open Settings (gear icon, top-right)
- 2Go to Devices section
- 3Select your measurement microphone as input
- 4Select your audio interface as output
- 5Click Import Calibration to load your mic's calibration file
- 6Use Test Tone to verify output
3
Take Measurements
5-10 minutes- 1Place microphone at your primary listening position (ear height)
- 2Point omnidirectional mics straight up
- 3From Dashboard, click New Measurement
- 4Enter room dimensions (optional but recommended)
- 5Select number of positions (3-5 recommendedfor home theater)
- 6Follow the wizard—stay quiet during each measurement
The MLS test signal sounds like pink noise — this is normal! Set volume to ~75dB at listening position.
4
Generate Filters
2 minutes- 1Go to Correct tab
- 2Select your measurement session as source
- 3Choose a target curve:
- Flat — Mixing/mastering
- Harman In-Room — Home theater/music (recommended)
- House Curve A — Cinema-style warmth
- 4Adjust settings if needed (defaults work well)
- 5Click Generate Filters
5
Apply & Verify Correction
2 minutes- 1Click Apply to Audio in filter details
- 2Go to Dashboard
- 3Toggle Correction to ON
- 4Play familiar music or content
- 5Toggle correction on/off to hear the difference
You're Done!
Your room is now corrected. For best results:
- Take a Corrected Measurement to verify improvement
- Experiment with different target curves
- Export filters for use in external hardware/software
- Re-measure if you move speakers or furniture
Quick Reference
| Task | How |
|---|---|
| Enable/disable correction | Dashboard → Processing toggle |
| View measurements | Measure tab → Select session |
| Change target curve | Correct tab → Target dropdown |
| Export filters | Correct tab → Export button |
| Verify correction | Measure tab → Corrected Measurement |
Pro Tips
- For surround systems, measure each channel group separately for best results
- Set subwoofer level and crossover before measuring
- Start with Harman In-Room curve—it's research-based and sounds natural
- If correction sounds unnatural, increase smoothing or reduce max boost
- Export filters to use the same correction in Roon, JRiver, or miniDSP
Need More Help?
Check our FAQ or contact support