The correct fix depends on whether every sound repeats or only your voice/call audio repeats—disable speaker enhancements for repeated playback, or reduce microphone boost for voice feedback.
If music, videos, and system sounds echo
Since changing headsets and combining the left/right channels did not help, leave the channel balance unchanged and try the output processing settings:
- Open Start → Settings → System → Sound.
- Under Output, select the speakers currently in use.
- Find Audio enhancements and set it to Off.
- Play a short audio clip and check whether the echo has stopped. Audio enhancements can cause distorted or repeated-sounding output on some devices.^1^
- If it continues, on the same device page select Advanced and change Default format to another available format, then test again.
Also verify that Windows is sending sound to only the intended device:
- Go to Settings → System → Sound.
- Under Output, select your speakers.
- Select More sound settings → Playback.
- Right-click those speakers and select Set as default.^2^
If you hear your own voice repeated
This usually involves microphone feedback rather than the left/right speaker configuration.
- Right-click the taskbar volume icon and select Sound settings.
- Select More sound settings → Recording.
- Right-click the active microphone and select Properties → Levels.
- Reduce Microphone Boost gradually; try +10 dB, then 0 dB.
- Test your voice after each adjustment.
- If the echo happens only in one calling or recording app, reduce that app’s microphone sensitivity or boost as well.^3^
If available for your input device, open Settings → System → Sound → Input → your microphone and enable Noise suppression. During a call, briefly mute the microphone: if the echo immediately stops, that identifies a microphone-to-speaker feedback path.^4^
If the echo remains everywhere
Update the audio driver:
- Open Start → Settings → Windows Update.
- Select Check for updates, install available audio-driver updates, and restart.
- If none is offered, open Device Manager → Sound, video and game controllers.
- Right-click the audio device and select Update driver → Search automatically for drivers.
- Restart and test.
If updating does not help, return to Device Manager, select Uninstall device, and restart. Windows should reinstall the driver automatically. If the echo remains, install the Windows 11 audio driver provided specifically for the computer model by its manufacturer.^5^
References
- Windows 11
- Windows 11
- How do I stop the echo in my headset when I speak? - Microsoft Q&A
- WhatsApp App produces very bad feedback echo - Microsoft Q&A
- Windows 11