Your files stay on your device

Test your microphone

Speak and watch the level meter move. Nothing is recorded.
microphone off: nothing is requested until you press StartStart the microphoneidleStart native feed

The level is computed from the raw analyser samples in this tab: RMS in dBFS with a -100 floor, mapped to a 60 dB meter window. Nothing is recorded and nothing leaves the page; stopping the test closes the AudioContext and stops every track.

- The level is computed from the raw analyser samples in this tab: RMS in dBFS with a -100 floor, mapped to a 60 dB meter window. Nothing is recorded and nothing leaves the page; stopping the test closes the AudioContext and stops every track.
- The browser almost always processes the stream (echo cancellation, noise suppression, AGC; see the settings readout). This meter shows the processed signal, which is what an app would receive.
- Every state has its own message: denied or dismissed (with the address-bar fix), no microphone found, input held by another app, insecure page, unsupported browser.
- The meter bands are about signal health, not microphone quality. A "quiet" verdict in a silent room describes the room, not the hardware.
microphone offPaste, drop, or type to begin. Everything stays on this device.

More device tests

- Webcam test (/device/webcam)
- Capability dashboard (/browser/capabilities)
All device tests (/device)

Canonical HTML: https://nutter.tools/device/microphone/
Markdown version: https://nutter.tools/device/microphone/index.md
Plain-text version: https://nutter.tools/device/microphone/index.txt
Agent index: https://nutter.tools/llms.txt