Audio Input Diagnostic
Free Microphone Test Online
Run a live microphone check, verify that your browser sees the right input device, and capture a short sample for playback.
Built for the moment right before a call, recording session, class, or stream when you need a fast answer.
Device labels become more descriptive after you allow browser access.
Instant meter response
Highest recent transient
Average energy estimate
Threshold-based activity check
Currently active input label
Reported capture rate
Reported input channels
Browser-reported device latency
Helpful for call scenarios
May reduce quiet background input
How To Use It
- Choose the microphone you want to test.
- Click Start test and allow access when the browser asks.
- Speak normally, then capture and replay a short sample.
Troubleshooting
- If the meter moves but apps still cannot hear you, the issue is often the app-specific input setting.
- If nothing moves, check mute toggles, system input gain, and other apps that might be using the microphone.
More Device Checks
Preview your camera, switch devices, mirror the view, and capture a frame before your next meeting or stream.
AUDIO OUTPUTSpeaker TestPlay short pings, stereo checks, and pulse patterns so you can confirm your speakers or headphones are outputting sound.
INPUT DEVICEKeyboard TestPress keys on your physical keyboard and watch them light up on a virtual layout to catch dead or inconsistent inputs.
AUDIO FREQUENCYSound TestPlay frequency tones, bass checks, and a full 20 Hz–20 kHz sweep to verify your audio output and hearing range.
POINTER DEVICEMouse TestClick, scroll, and move your mouse inside a test area to verify every button, the scroll wheel, and tracking accuracy.
DISPLAY CHECKScreen TestDisplay solid colors in fullscreen to find dead pixels, stuck pixels, or screen defects on your monitor.