DeviceDIYBefore a Teams call, test your camera preview and microphone signal in the browser, confirm speaker output with your own hearing, and then check device selection inside Teams. A passing browser test cannot guarantee Teams uses the same devices.
How to test and troubleshoot
Start with the meeting essentials
Connect your intended headset and webcam. Close apps that may occupy the camera.
Run the DeviceDIY pre-call test
Open the Video Call Test, grant requested permissions and confirm your face appears clearly in the preview.
Speak and observe microphone activity
Speak normally. Watch the mic signal, then use the dedicated microphone test to record and listen if clarity is uncertain.
Confirm speaker output
Use DeviceDIY Speaker Test to hear a tone. Choose the actual headphones or speakers used for your call.
Open Teams device settings
In Teams, choose the same camera, microphone and speaker devices and use its own test call or preview when available.
Retest when switching devices
Reconnect headsets or docking stations before repeating the check. Device defaults can change between sessions.
What common test results mean
Browser works but Teams microphone fails
Teams may be using a different microphone or have separate OS permission settings.
Webcam black in both places
Check camera privacy shutter, operating-system access and competing apps.
Speakers work in browser, not Teams
Check Teams speaker selection and the active operating-system output device.
Important: A browser test shows the events or signals the browser receives. It does not independently certify hardware condition, software compatibility, data security or the cause of every fault.
Frequently asked questions
Does DeviceDIY connect to Microsoft Teams?
No. It performs browser-local pre-checks; Teams device settings must be verified separately.
Should I run the check again after changing headsets?
Yes. Changing output and input devices can change operating-system and app selections.
Technical references
For settings that vary by operating system and browser, refer to official guidance:
Ready to check your device?
Run the matching browser test and see what it actually detects.