Camera & Microphone
Auto noise cancellation impacting detection
Some devices or communication apps use automatic noise cancellation to suppress background sounds, which can unintentionally block your voice during microphone or speech checks in a proctored test or interview.
🚫 Active noise cancellation – Why it may cause detection issues
✅ Common scenarios
| Apps/Features that cause issues | What can happen |
|---|---|
| Zoom, Teams, Google Meet | Mic input suppressed if voice is too soft |
| System-level noise filtering (Windows, macOS) | Voice chopped or not detected |
| Headphones or Bluetooth mics that have Active Noise Cancellation (ANC) feature | Voice clarity lost due to aggressive filtering |
🛠What you can do
- Disable noise cancellation in system or app settings (e.g., Zoom > Audio > Uncheck “Suppress background noise”)
- Use a basic wired headset or built-in mic without filtering enhancements like Active Noise Cancellation (ANC).
- Speak directly into the mic and avoid whispering or trailing off
- Run a mic test from your system settings or browser-based tools
🆘 Still facing issues?
Switch to a device without noise suppression or contact support with:- The mic model and type (wired/wireless/Bluetooth)
- Screenshot of your sound settings or audio app configurations
Clear audio input is critical for speech checks—avoid tools that filter your voice.