Does the silence detector record or upload audio?

No. It analyzes volume locally in your browser. It does not create, store or upload an audio recording.

Why is the room never reaching silence?

Fans, traffic, electrical hum, microphone self-noise and automatic gain can keep the signal above a strict threshold. Try room calibration or move the threshold slightly to the right.

Can I use the silence detector for meditation or practice?

Yes. It can measure quiet periods during meditation, breathing practice, music or speech exercises, classroom activities and focused work.

Live mic analysis • no recording

Silence Detector Online

Q: How does this online silence detector work?

It reads the microphone signal level in your browser and counts a period as silence when it stays below your chosen quiet threshold for the minimum duration.

Q: What counts as true silence?

No everyday microphone can prove absolute silence. Here, true silence means the room stayed below the selected sound threshold long enough to qualify. Calibrating helps adapt that line to your microphone and room.

Q: Is this silence detector online free?

Yes. It is free to use, requires no account and runs directly in a compatible web browser.

Find the quiet inside a room. This private microphone tool counts your current, total and longest silence—useful for meditation, music practice, speech exercises or simply noticing stillness.

Microphone off 🔒 Audio stays on this device

Current silence 00:00.0 Ready when you are

Live room level— dBFS

SilentYour quiet lineLoud

Press start and allow microphone access to begin measuring.

Your quiet report

Times update live once a quiet period is long enough to count.

00:00Total silence

00:00Longest stretch

00:00Session time

Quiet threshold-48 dBFS

StricterMore tolerant

Sound below this line can count as silence. Room calibration can choose a useful starting point.

Minimum silence

Brief dips are ignored until the room stays quiet for this long.

Microphone

Private by design. The app measures volume only. It never records speech, saves audio or sends microphone sound to a server.

Last 30 seconds

The live sound history will appear here.

How to measure silence in a room

There is nothing to install. A modern browser and a microphone are all you need.

1. Start listening

Press the button and allow microphone access. The tool analyzes volume, not your words.

2. Set your quiet line

Keep the balanced default, adjust the threshold, or calibrate it against the sound in your room.

3. Watch silence grow

See the current quiet streak plus the total and longest silence measured in your session.

A quiet-time detector for practice and presence

Meditation

Measure unbroken stillness without an alarm, spoken prompt or sound interrupting the room.

Music and speech practice

Notice clean rests, pauses and response gaps while rehearsing timing and delivery.

Focus and classrooms

Turn a quiet challenge into a visible, shared goal while keeping the measurement private.

Silence detector online FAQ

How does this online silence detector work?

It reads the microphone signal level inside your browser. A period counts as silence after the level remains below your selected threshold for the chosen minimum duration. The current, total and longest times then update live.

Does it record or upload my audio?

No. The tool analyzes volume locally and does not create, store or upload an audio recording. Microphone access stops when you end the session or leave the page.

What counts as true silence?

No everyday microphone can certify absolute silence. Here, true silence means the room stayed below your selected sound threshold long enough to qualify. Use room calibration to adapt the detector to your microphone and ambient noise.

Why is the detector not finding silence?

Fans, traffic, heating systems, electrical hum, microphone self-noise and automatic gain can all raise the live level. Calibrate the room, move the quiet threshold slightly toward “More tolerant,” or reduce nearby noise.

Can I use it for meditation or music practice?

Yes. It works well for meditation, breathing practice, clean musical rests, speech pacing, classroom quiet time and focused work. It measures only volume, so it cannot identify what made a sound.

Is this silence detector online free?

Yes. It is free, has no account requirement and runs in a compatible browser. Your browser may require a secure HTTPS connection before allowing microphone access.