Microphone Test

Confirm Your Mic Actually Works in Seconds

A microphone test answers one simple but stressful question: is my mic actually picking up sound? Whether you're about to join a video call, start a podcast, record a voiceover, or play online with voice chat, walking in blind is how meetings begin with "can you hear me?" This tool removes the guesswork. Click Start Test, allow microphone access, and speak — a live volume meter moves in real time to prove your microphone is capturing audio.

Everything runs in your browser using the Web Audio API. There's no app to install, no signup, and crucially, no recording. Your audio is analyzed on-device and never leaves your computer.

What This Test Actually Checks

The test does three things, all instantly:

• Permission and device access — it verifies your browser can reach a microphone at all, and surfaces clear messages when access is blocked or no device exists.
• Live input level — it reads the raw waveform and computes loudness (RMS) dozens of times per second, then draws it as an animated LED-style meter with a peak-hold marker.
• Device identity — once you grant access, it displays the label of the active input device so you know exactly which mic is being tested.

What it deliberately does not do is play your voice back. Real-time playback through speakers causes ear-splitting feedback, so this tool stays silent and purely visual.

How to Interpret the Volume Meter

The meter is color-coded so you can read it at a glance:

• Green is the healthy zone. Normal conversational speech should comfortably light up the green segments.
• Yellow means a strong signal — perfectly fine for louder moments, laughter, or emphasis.
• Red means clipping. The signal is too hot and the waveform is being squared off, which sounds distorted and crunchy to listeners.

The ideal target: keep your typical speaking voice in green, with only brief peaks brushing yellow. If you're constantly in red, your input gain is too high. If you have to shout to leave the lowest segments, it's too low. A meter that doesn't move at all means no signal is reaching the browser — jump to troubleshooting below.

Troubleshooting a Mic That Won't Register

If the meter stays flat, work through these in order:

1. Re-check permission. Click the lock or camera icon in your address bar and set the microphone to Allow, then restart the test.
2. Pick the right device. Open your OS sound settings and confirm the intended microphone is the selected input — and that it isn't muted or set to zero input volume.
3. Free up the mic. Some apps grab the microphone exclusively. Close any open video-call or recording software and retry.
4. Reconnect hardware. Unplug and replug USB or 3.5mm mics; loose connections are a frequent culprit.
5. Use HTTPS. Browsers only grant microphone access on secure (HTTPS) pages — this site qualifies, but local copies served over plain HTTP won't.

If a different headset works but yours doesn't, the issue is likely the device or its driver rather than the browser.

Pair It With Other Quick Hardware Checks

A working mic is one piece of a healthy setup. Once your input is confirmed, it's worth sanity-checking your reflexes and gear too — try the reaction time test to see how snappy your whole input chain feels, or warm up your accuracy with the aim trainer before a gaming session. Run this microphone test before every important call and you'll never open with "wait, is this thing on?" again.