Mic Test: how to use the result
The microphone test shows whether the browser receives a changing audio signal from the selected input. It can help you prepare for a call or investigate silence before opening a meeting application. The meter represents a relative digital level; it is not a measurement of room loudness, studio quality or the microphone’s published sensitivity.
How to use this workspace
- Check which input your browser or operating system will use, then press Start and approve microphone access if you want to run the test.
- Speak at a normal distance and compare the meter with a quiet interval. Avoid tapping the microphone as a substitute for normal speech.
- Press Stop when finished. If access is denied, review the site permission and the input selected in system settings before trying again.
A practical example
If the meter rises during speech and falls during a pause, a changing signal is reaching the analyser. A consistently low reading could come from a muted input, the wrong device or a quiet signal. The page cannot identify the cause solely from the meter.
How to interpret your result
The analyser summarizes normalized samples using root mean square, then expresses the relative result in dBFS. That scale is referenced to digital full scale. It cannot be converted into calibrated dB SPL without additional information and a suitable measurement process.
Common mistakes and limits
Automatic gain control, noise suppression, microphone distance and headset routing can all affect the level. There is no recording or playback function here, so this test does not let you judge intelligibility by listening to an exported sample.
Make the comparison repeatable
Test one condition at a time and note which device, browser and connection you used. If an unexpected result appears, repeat the same action before changing settings. A second browser or another known-working peripheral can help separate an application or permission problem from a device problem. Keep those comparisons descriptive: this page observes what reaches the browser and does not have access to a laboratory measurement of the hardware.
Frequently asked questions
Is my voice uploaded or recorded?
The tool analyses the live stream locally. It does not create a recording, send audio to a transcription service or provide a remote upload.
Why can my meeting app still have a problem after this test passes?
A meeting app may choose another input or apply different processing and permissions. This test confirms only the stream delivered to this page.