Hello Marian Trapszo,
The limitation you are facing is due to how Hyper‑V handles device redirection. Hyper‑V natively supports USB redirection for cameras through enhanced session mode, but audio devices such as microphones embedded in webcams are not exposed as discrete USB audio endpoints to the guest. That is why the guest VM shows only “Remote Audio” and cannot capture input from the Logitech microphone. This differs from RDP audio redirection, which can pass host audio streams, but Hyper‑V does not provide direct passthrough for microphone devices.
To resolve this, you need to enable Enhanced Session Mode on the host (Hyper-V Settings > Enhanced Session Mode Policy) and on the VM (VM Settings > Integration Services). Even then, only standard audio devices recognized by the host can be redirected. If the Logitech webcam microphone is not enumerated as a separate audio endpoint, the guest will not see it. The reliable workaround is to connect a USB audio device directly to the VM using USB passthrough software or to use RDP into the VM with audio redirection enabled, which correctly exposes the microphone. At present, Hyper‑V does not support native passthrough of webcam microphones, so using RDP or a dedicated USB audio device is the best practice.
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Thank you, QQ.