If a capture device is connected to your PC and set as the Audio Input default in Windows; all PC audio will be transmitted to other players when using the talk function in either party or game chat. To resolve this, you will need to do the following.
- Setup your capture device
- Open Settings and select System
- Select Sound and choose your input device you want from the drop-down menu
This will make it so your local PC audio is not transmitted when communicating.