Symptoms

One or both of the following scenarios may occur when using conference applications, such as Teams and Zoom. When Person 2 tries to speak while Person 1 is talking, Person 2's voice cannot be heard during the meeting.When multiple people speak simultaneously, Person 2's voice cannot be heard during the meeting. Note: Person 2 is using one of the affected products. Affected Platforms: Dell Pro Rugged 14 RB14250Dell Pro Rugged 13 RA13250Inspiron 14 5440Inspiron 14 5445Inspiron 14 7440 2-in-1Inspiron 14 7445 2-in-1Inspiron 16 5640Inspiron 16 5645Inspiron 24 5430 All-in-OneInspiron 27 7730 All-in-OneLatitude 3450Latitude 3550Latitude 5350Latitude 5450Latitude 5550Latitude 7350Latitude 7450Latitude 7650Latitude 9450 2-in-1OptiPlex All-in-One 7420Precision 3490Precision 3590Precision 3591Precision 5490Precision 5690Vostro 14 3440Vostro 16 5640XPS 13 9340XPS 14 9440XPS 16 9640

Cause

Realtek High Definition Audio Driver is the cause.

Resolution

Updating to Realtek High Definition Audio driver version 6.0.9794.1, A09 or later on the computer resolves the issue. To download and install the driver, refer to How to Download and Install Dell Drivers and Firmware.

Support Cases