My Capture card audio is working in Windows but not show in MacOS

[taitony]

In my life I always use Windows, OBS Capture audio is working always. But just switch to MacOS, in my MacBook Air M3 I install OBS and capture card same as for Windows, but I the windows I can see the video but no audio channel show out.

Can any one can help me to solve the problem ? I am very new for macOS. Thanks !