No sound input in UltraStudio HD Mini

Can this capture card capture audio only， without video plug？

I tried get audio from
-Audio Mixer
-Direct line in Mic
-output from PC

But my laptop still get nothing
（i mean in sound）
（the video input is good）

I am not sure what kind “Analog Audio” it support
or any thing did wrong by me？

https://drive.google.com/file/d/1oZ3jIH ... sp=sharing

Hope someone can help
Thank
and sorry about my broken inggeris

No, video capture cards need a video signal to work, as the audio is imbedded in the video signal. The video signal can be a “Blackburst” or a Video feed from a camera with the lens cap on, this would give yiu a video feed.
Cheers