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Room Reverb - Echo Time Check icon

Room Reverb - Echo Time Check

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Clap once. See how long your room's sound takes to fade (RT60).

Downloads
15+
on Google Play
Price
Free
No in-app purchases
Updated
Sep 16
2026 · v1.0.0
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Screenshots

  • Room Reverb - Echo Time Check screenshot 1
  • Room Reverb - Echo Time Check screenshot 2
  • Room Reverb - Echo Time Check screenshot 3
  • Room Reverb - Echo Time Check screenshot 4

About Room Reverb - Echo Time Check

Ever walk into a room and it just sounds "boomy," or the opposite — dead and flat? That's reverberation, and most people never think about it until it's a problem: an echoey home office on video calls, a living room where the TV sounds muddy, a meeting room where nobody can be understood.

Room Reverb measures exactly that. Clap once, and the app listens to how your room's echo fades away — no equipment, no calibration, just your phone.

[ HOW IT WORKS ]

● One Clap, One Number
Put your phone down, clap loudly once, and Room Reverb records the decay of that sound. It calculates RT60 — the time it takes for sound to fade by 60dB — using the same T30 method acoustic engineers use.

● See the Decay Curve
A graph shows exactly how the sound faded over time, with the measured section highlighted. This isn't a black box — you can see the data behind the number.

● Know If It's Good for Your Room
Different spaces have different targets: a home studio wants a short, tight decay (200–400ms), a living room is comfortable around 400–700ms, and a meeting room benefits from under 600ms. Pick your use case and get an instant read — too echoey, too dead, or just right.

● Built-In Quality Checks
Background noise too high, or your clap too soft? Room Reverb tells you exactly why a measurement failed instead of just giving you a bad number — so you know to try again in a quieter moment or with a sharper clap.

[ WHY THIS MATTERS ]

- Before buying a rug, curtains, or acoustic panels — measure first, then decide if it actually helped
- Comparing rooms before recording, podcasting, or setting up a home office for calls
- Curious why one room in your home sounds different from another

[ WHY THIS APP ]

- One clap, one clear number — no technical setup
- See the actual decay curve, not just a black-box result
- Clear pass/fail guidance for your specific use (studio, living room, meeting room)
- Tells you why a measurement failed, not just that it did
- No account, no login, no clutter

[ GOOD TO KNOW ]

Phone microphones aren't calibrated instruments, so treat results as a helpful reference for comparing rooms — before and after moving furniture, adding a rug, or hanging curtains — rather than a lab-grade measurement. For consistent results, measure in a quiet moment with the phone resting on a flat surface.

Find out what your room actually sounds like.

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