Microphone visualization
Input device
Enable the microphone to begin
Input level
RMS level—
Peak level—
No visible signal
Start recording
Recent waveform
Method & limits
Speak into the selected microphone and watch the level. If nothing moves, check the input device, mute and system permissions. Record a short sample and play it back. Levels are digital values, not sound-pressure measurements. Audio remains in this page and is discarded when it closes.
Microphone test guide
Enable the microphone, observe its input and play back a short recording.
How to test
- Enable microphone access and select your input.
- Speak and check the level and waveform.
- Record a short sample, stop capture and play it back.
Frequently asked questions
Why is no input visible?
Check the selected input, mute switch and operating-system permissions.
Why was access denied?
Allow microphone access in the browser and system settings, then retry.
Does the level measure room loudness?
No. The digital level is not a calibrated sound pressure measurement.
Where is the recording stored?
It stays in page memory and is discarded when the page closes.