20 Hz20 kHz
Hearing safety
Start at low volume. Bass frequencies can be much louder than they seem at first. Very low frequencies (below 30 Hz) may not be audible but can still drive your speakers hard.
Play test tones and frequency sweeps to hear how your room responds to different frequencies. No mic or download needed.
Hearing safety
Start at low volume. Bass frequencies can be much louder than they seem at first. Very low frequencies (below 30 Hz) may not be audible but can still drive your speakers hard.
Want full room modeling, measurement, and optimization?
Try the Atuund WorkstationPlay a slow bass sweep (20–200 Hz) and listen carefully. You'll hear certain frequencies jump out louder than others and some nearly disappear. Those are your room modes in action. The loud spots are modal peaks and the quiet spots are nulls. The pattern changes as you move around the room — try walking while the sweep plays to hear how dramatically bass varies by position.
Test tones help identify problems that music can mask. Play a steady tone at a known problem frequency while adjusting speaker or subwoofer position. When the tone sounds most even and natural at your listening spot, you've found a better position. This manual approach complements physics-based optimization.
For room acoustics, sweep 20–200 Hz (bass range) where room modes dominate. This is where speaker and listener placement makes the biggest difference. A full-range sweep (20–20,000 Hz) tests your entire system but the high frequencies won't reveal room mode issues.
Yes, at moderate volumes. Start low and increase gradually. Very low frequencies (below 30 Hz) can drive speakers hard without sounding loud, so be cautious with the volume if your speakers aren't rated for deep bass.
Atuund uses finite element method (FEM) modal analysis to model room acoustics. Built for hi-fi enthusiasts, home theater builders, and anyone who wants better sound from their speakers.