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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)

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