How to Test a Microphone Online

A browser-based mic test shows a live input level meter: if the meter moves when you speak, the entire chain — hardware, drivers, OS settings, browser permission — is working. That's a stronger check than an app's settings page, because it exercises the same path a real call uses.

Importantly, a properly built test analyzes audio locally to draw the meter and records nothing. The microphone releases as soon as you stop.

Work down this list — it resolves the overwhelming majority of silent-mic cases. First, hardware mute: most headsets have a physical mute switch or a boom arm that mutes when flipped up. Second, the wrong input device: your OS may be listening to a built-in mic while you speak into a headset, or vice versa. Third, input volume set near zero in system sound settings. Fourth, browser permission denied — check the padlock icon in the address bar. Fifth, another app holding exclusive access to the device.

If the mic works in the test but not in a specific app, the problem is that app's input device selection — check its audio settings rather than the system's.

A moving meter proves signal; it doesn't prove you sound good. Watch the level while speaking normally: peaks that constantly hit the top mean clipping and distortion (lower the input gain), while a barely moving meter means you'll be quiet on calls (raise gain or get closer to the mic). Aim for peaks around two-thirds to three-quarters of the meter.