Fixing Audio Input Issues on Dell XPS 14 (9440)
If your microphone or audio input is not working properly on a Dell XPS 14 (9440), you may need to reinstall the Intel Smart Sound Technology driver. Follow the steps below to resolve the issue.
Step-by-Step Instructions
Open Device Manager
Press Windows + X and select Device Manager from the menu.
Uninstall the Problematic Audio Controller
In Device Manager, expand System Devices.
Locate and right-click on Intel Smart Sound Technology Audio Controller.
Select Uninstall device.
When prompted, confirm the uninstallation.
Download the Correct Audio Driver
Go to the official Dell Support page for the XPS 14 (9440):
Download Intel Smart Sound Technology Driver
Install the Driver
Run the downloaded installer and follow the on-screen instructions to complete installation.
Reboot Your System
Restart your laptop to apply the changes.
Verify Audio Input
After rebooting, test your microphone in Windows Sound Settings or a conferencing app (e.g., Teams or Zoom) to confirm the issue is resolved.
Additional Tips
Ensure Windows Update is fully up to date before and after installation.
If the issue persists, check Privacy Settings → Microphone access to ensure apps have permission to use the mic.
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