Quick answer: You can check echo with just your phone. Record yourself clapping once in the middle of the room and listen to how long the ring lasts. Record a sentence and play it back. Or use a free echo-time app. Do the same test before and after any change, from the same spot, so you can compare.

Key takeaways

  • Clap test: record one clap and listen to the ring.
  • Voice test: record a sentence and play it back.
  • Always test from the same spot, before and after.

Test 1: the clap

Stand in the middle. Start recording. Clap once, loudly. Wait 3 seconds. Stop. Play it back with earphones. A short, dry clap is good. A ring or buzz that hangs on means echo.

Test 2: the voice

Sit where you normally talk. Record yourself reading two sentences at a normal voice. Play it back. If you sound like you are in a bathroom, the room needs help.

Not sure what your room needs? Send us a photo on WhatsApp or request a free quote. We'll tell you how many panels, where they go and the price. See our acoustic panels Singapore and recent projects.

Check echo with your phone infographic
Reading the clap test diagram

Test 3: an echo-time app

Free apps can estimate how long the echo lasts, in seconds. The number is rough, but it is good for comparing before and after. Use the same app and the same spot each time. See what is RT60.

What the numbers mean

For talking rooms like offices and classrooms, shorter is better: well under a second. Big halls can be longer. Your ears are the final judge.

Send it to us

Send us the clap and voice recordings on WhatsApp, with a few photos of the room. We can hear a lot from them and tell you what the room needs. Quotes from photos and videos are free. See quotes from photos and videos.

After panels

Repeat the same tests from the same spot. The ring should be shorter and your voice should sound closer. Play the before and after clips one after the other to hear the change.

Common mistakes

People often test with the aircon on full, clap too softly, or stand in a corner. Keep the room quiet and stand in the middle. Clap once, sharply, so the ring is easy to hear.

Test in use too

Record during a busy lunch, a meeting or a service. Some rooms only get bad when full. An empty-room test can make the room seem better than it is.

What we see on real jobs

A 10-second clap video is one of the quickest ways to show us a room. The ring is easy to hear on a recording.

Get a straight answer for your room

Send us a photo or a short video of the room on WhatsApp (+65 8930 1905). We'll reply with whether panels are the right fix, how many you need, where they go and the price. If it's really a soundproofing problem, we'll tell you.

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