Ensure the Microphone Routes to the Windows Session.

Symptom

Verify the Windows session detects an audio input device or microphone by opening Audio Settings. An audio input device is present on the ThinClient desktop and is functioning. To verify, right-click the volume icon in the upper-right corner and open Sound settings.

Cause

TranslationSince pending...FreeRDP version 2.7.0 (freerdp-git 2021.2.2), the audio system's auto-detection feature requires manual intervention.

Workaround

In the FreeRDP application, under Connection Parameters — Additional Parameters, add the following command-line parameter:

/microphone:sys:pulse