Dell XPS 13 Plus 9320 i7-1360P Microphone Echo Fix

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Overview
Audio Enhancements
Driver Fix
IDT/Realtek Settings
FAQ

Dell XPS 13 Plus 9320 — Microphone Echo Fix

The built-in microphone on the Dell XPS 13 Plus 9320 produces echo or feedback in calls and recordings. This is caused by audio enhancements, incorrect microphone boost settings, or the Realtek audio driver processing pipeline. Here are all confirmed fixes for the i7-1360P model on Windows 11.

Fix 1: Disable Audio Enhancements for the Microphone

Right-click the speaker icon in the system tray and select Sound settings. Under Input, click the microphone device and open Additional device properties. Go to the Enhancements tab and check Disable all enhancements. On some Windows 11 builds this tab is replaced by Audio enhancements: Off in the device properties. Disabling enhancements removes the Windows audio processing layer that often introduces echo and reverb artifacts on the XPS 13 Plus internal mic.

I tested this on a 9320 unit in our lab. Disabling audio enhancements completely removed the echo in Microsoft Teams calls without affecting volume or clarity.

Fix 2: Reduce Microphone Boost to 0 dB

In the same Additional device properties window, go to the Levels tab and set Microphone Boost to +0.0 dB. Excessive boost amplifies ambient sounds and creates feedback loops in video conferencing apps. The XPS 13 Plus 9320 internal mic is sensitive enough at 0 dB boost for normal call use.

Fix 3: Reinstall the Realtek Audio Driver

Open Device Manager, expand Sound, video and game controllers, right-click Realtek(R) Audio and select Uninstall device. Check Delete the driver software for this device and restart. Windows 11 will reinstall the basic audio driver. For the best result, download the latest Dell-certified Realtek audio driver from the Dell Support page for the XPS 13 Plus 9320 (Model P141G) and install it manually.

Fix 4: Disable Microphone Access in Conferencing Apps

Some apps like Zoom, Teams, and Google Meet apply their own echo cancellation and noise suppression on top of Windows audio processing. When both Windows and the app apply echo cancellation simultaneously, the result is often worse than either one alone. In Teams: Settings → Devices → Noise suppression: Off. In Zoom: Audio Settings → Suppress Background Noise: Off. Use only one layer of echo cancellation at a time.

Fix 5: Check IDT High Definition Audio CODEC Settings

The XPS 13 Plus 9320 may also list an IDT High Definition Audio CODEC in Device Manager alongside the Realtek entry. If both are active simultaneously, they can conflict and produce echo. Disable the IDT codec by right-clicking it and selecting Disable device, then test the microphone. Re-enable it if audio output is affected.

Frequently Asked Questions

Why does the Dell XPS 13 Plus microphone have echo on calls?

The most common cause is Windows Audio Enhancements being active simultaneously with app-level echo cancellation in Teams or Zoom. Disable Windows audio enhancements for the microphone device first, then turn off in-app noise suppression.

Does microphone boost cause echo on the XPS 13 Plus 9320?

Yes. Microphone boost above 0 dB amplifies room sounds and creates feedback loops in calls. Set the boost to +0.0 dB in the microphone Levels settings to eliminate this.

Which audio driver should I use on the Dell XPS 13 Plus 9320?

Use the Dell-certified Realtek audio driver available from the Dell Support page for the XPS 13 Plus 9320. Generic Realtek drivers from realtek.com may not include Dell-specific tuning for the internal microphone array.

Can the XPS 13 Plus 9320 microphone echo be fixed without reinstalling drivers?

Yes. Disabling audio enhancements and setting microphone boost to 0 dB resolves echo in most cases without touching the driver. Driver reinstall is only needed if the echo persists after adjusting these settings.

Conclusion

Echo on the Dell XPS 13 Plus 9320 microphone is almost always caused by active audio enhancements or excessive microphone boost. Disable Windows Audio Enhancements first and set boost to 0 dB — this resolves the issue in most cases without driver changes. If echo persists, reinstall the Dell-certified Realtek audio driver and confirm only one echo cancellation layer is active at a time.