Camera & setup
How to Test Your Webcam and Mic Before a Call
Here's how to test webcam and microphone before a call: open your device's built-in camera app to check the picture, watch the input meter in your sound settings move as you speak, then confirm your browser has permission for the site you'll use. If all three pass, your hardware is fine and any remaining problem is in the call itself.
The whole check takes about two minutes and tells you exactly where a problem lives. You don't need a separate testing website: the tools are already on your device, and using them means you're not handing camera access to an extra site.
Step 1: Check the camera with a built-in app
| Device | Built-in camera check |
|---|---|
| Windows 11 | The Camera app, or Settings → Bluetooth & devices → Cameras → pick your camera for a live preview |
| Mac | Photo Booth or FaceTime |
| iPhone or iPad | The Camera app, switched to the front camera |
| Android | Your Camera app, switched to the front camera |
| Chromebook | The Camera app from the Launcher |
| Linux | Your desktop's camera app, such as GNOME's Camera (names vary by distribution) |
Look for four things: the picture appears, it's the camera you expect, it's reasonably sharp and bright, and the lens sits roughly at eye level.
If you have more than one camera, such as a laptop camera plus a USB webcam, note the exact name of the one you want. You'll pick it by name in the browser later.
Step 2: Mic test before a video call
First check that the right microphone is selected and picks up your voice:
- Windows 11: Settings → System → Sound → Input. Choose your microphone, then speak and watch the volume bar move. The device's properties page has a microphone test.
- Mac: System Settings → Sound → Input. Select your microphone and watch the input level meter as you talk.
- iPhone: record a few seconds in Voice Memos, holding the phone where it will be during the call.
- Android: use your phone's recorder app; the name varies by maker.
- Chromebook: Settings → Device → Audio, then check the input device (names may differ slightly by version).
Then record yourself and play it back with headphones on. On Windows, the Sound Recorder app does this; on a Mac, Voice Memos. Listen for a muffled or distant voice, hum, keyboard clatter, or a level so low you strain to hear it.
Using a Bluetooth headset? Many switch to a lower-quality mode whenever the mic is on, so you sound thin or robotic. Our guide to a Bluetooth headset mic not working on calls explains the fix.
Step 3: Check camera and microphone in your browser
A browser needs permission for each site, and it can use a different camera or mic from the one your system prefers. Check both:
- Chrome: click the icon to the left of the address, then Site settings, and allow Camera and Microphone. To choose devices, open chrome://settings/content/camera and chrome://settings/content/microphone and use the menu at the top.
- Edge: edge://settings/content/camera and edge://settings/content/microphone.
- Firefox: click the permission icon in the address bar, or go to about:preferences#privacy → Permissions → Camera or Microphone → Settings.
- Safari on Mac: Safari → Settings → Websites → Camera, then Microphone.
- iPhone: Settings → Apps → Safari → Camera and Microphone (on older iOS, Settings → Safari), or the page menu in the address bar → Website Settings.
Menu names may differ slightly by version. If the wrong camera keeps showing up, see how to change the camera your browser uses.
Then open the site you'll use. Omlet asks for your camera and microphone when it loads and shows your own preview before you press Start, so you can confirm the right camera is working before you meet anyone. For the mic, the input meter from Step 2 is your best check.
What each failure points to
| What you see | Likely cause | First thing to try |
|---|---|---|
| Camera fails in the built-in app too | System privacy setting, driver, cable or hardware | Check privacy switches, then reconnect or restart |
| Camera works in the app, not the browser | Browser or site permission blocked | Allow the camera in the site's settings |
| Black preview or "camera in use" on Windows | Another app is holding the camera | Close Zoom, Teams, Discord or OBS |
| The wrong camera appears | Browser default camera | Pick the right one in browser settings |
| Mic meter doesn't move | Wrong input, mute switch or privacy setting | Select the right mic; check hardware mute |
| Voice thin or robotic on a headset | Bluetooth hands-free mode | Try wired earbuds or the device's own mic |
If an external camera doesn't appear anywhere, work through external webcam not detected. If the mic passes the system test but not the browser, see microphone not working in browser.
Privacy switches that block everything
When a device fails every test, an operating system setting is often the reason, especially after an update:
- Windows: Settings → Privacy & security → Camera. Turn on camera access, Let apps access your camera, and Let desktop apps access your camera (browsers count as desktop apps). Repeat under Microphone.
- macOS: System Settings → Privacy & Security → Camera, then Microphone. Turn on your browser, then quit and reopen it.
- Physical switches: a sliding privacy shutter on the webcam, a camera key on some laptop keyboards, or a mute button on your headset cable.
A lens cover or shutter gives a black or gray picture, not an error, so it's easy to miss. Check it first.
Do you need a webcam test online?
Many testing sites work fine, but each one asks for access to your camera and microphone. You don't need them: the built-in apps above test the hardware, and the site you'll actually use tests the browser side.
If you do use one, revoke its access afterward in your browser's site settings so it can't ask again without you noticing.
A two-minute pre-call checklist
- Close other apps that use the camera.
- Open the built-in camera app and confirm the right camera works.
- Watch the input meter move as you speak.
- Put on headphones or earbuds to prevent echo.
- Open the site, allow the camera and microphone, and check your preview.
- Adjust light and angle until your face is clear.
If everything passes but the picture still looks poor, the camera itself may be the limit; how to choose a webcam covers what to look for. Using Omlet as an app on your computer? Installing a web app on desktop keeps the same permissions as your browser.