[Ronny Hofsøy]

The audio is not switched, so the audio on the HDMI and SDI inputs are stripped out. ONLY the video will enter the TVE switcher. If you need to mix the audio coming from the camera, you need to connect each cameras audio output to an external audio mixer that also has AES output that you connect to the AES input on the TVS. But be informed that the audio has to be delayed to get perfect lipsync due to delay processing the video inside TVS switcher. Typical around 40ms. A nice box that takes care of the delaying of the audio is Behringer Shark FBQ100 https://www.behringer.com/EN/Products/DSP110.aspx but this is analog only, and has to be injected before sending out on the AES.