Tests
Microphone Test
View a live waveform, volume meter, spectrum, device settings, and a local record-and-playback sample.
Private by designProcessing happens locally in this browser. Device streams and raw readings are not uploaded.
What this test checks
How to use this test
Press Start, allow microphone access, speak normally, and optionally record a short local playback.
What the results mean
Visible movement confirms that the selected input delivered a signal to this browser session.
Troubleshooting
Allow permission, select the correct input, raise system input level, and close apps using the microphone.
Browser limitation
The browser can show its input stream, not certify microphone frequency accuracy or electrical health.