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If your USB microphone isn’t being detected or isn’t capturing audio during your test or interview, it could be due to connection issues, permissions, or system settings. This can lead to missing audio input, which may affect your ability to communicate clearly, result in incomplete recordings, or even lead to your test/interview session being flagged or disqualified. In this article, you’ll learn the common reasons this happens and how to resolve it.

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✅ Common Causes and Fixes

What Might Be WrongWhat You Can Do
USB mic not recognized by the systemUnplug and reconnect the mic. Try a different USB port (avoid USB hubs if possible).
Wrong mic selected as inputGo to your system or browser settings and choose your USB mic as the default input device.
Mic is mutedCheck for a mute button on the mic or cable, and unmute it.
Permissions not grantedAllow microphone access in your browser and operating system settings.
Outdated or missing driversRestart your system. If it still doesn’t work, update audio or USB drivers.
USB port is faultyTry plugging the mic into another USB port or device to test.
Background apps using the micClose other apps like Zoom, Skype, or Teams that may be locking mic access.

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🛠 Final Check: Confirm Mic is Detected

  1. Check if your mic is listed and selected as the input device:
  • Windows: Settings > System > Sound > Input > Choose your input device
  • Mac: System Settings > Sound > Input > Select USB Microphone
  1. Run a Mic Test to confirm it’s working well.

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Additional Tips

Still not working? Try these:
  • Restart your device
  • Test the mic on another device
  • Try a different USB cable if the mic is detachable