RTSP cameras with no sound

I have installed Dafang on a Neos camera (UK equivalent of Wyze) and I am to get the RTSP stream into home assistant using either generic_camera entity or the MotionEye addon however I get no sound no matter what I try.

But if I view the stream within VLC Media Player I have sound, I am able to access the streams via a link such as http://192.168.1.X/unicast.

Anyone have any ideas why this is happening and how I can resolve it?

HA (As Far as I Know) does not support getting a camera’s audio stream.