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# Test your microphone

A live level meter over the real stream — speak and watch the level, read what the track reports, switch inputs. The request fires only when you press Start; nothing is recorded.
microphone off — nothing is requested until you press StartStart the microphone

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 offNothing in yet

Paste, drop, or type to begin. Everything stays on this device.

nothing runs until you press Start

## Next door in Device

- [Webcam test](/device/webcam)
- [Capability dashboard](/browser/capabilities)
[All device tools](/device)

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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