Windows Media Encoder

I am trying to use Windows Media Encoder to stream live TV from a Hauppage WinTV HVR-1800 Model 78xxx, Combo ATSC/QAM

The problem is that Media Encoder sees the device as a video source, but does not see it as an audio source.

So I can stream the TV but not sound.

Does anyone have any experience with this card?

Are there drivers I can download so that it will see it as an audio source?

i have the same card and was able to connect a vcr to it and record entire tape with sound using the drivers from hauppauge website, i use windows media center to watch and record live tv.