Question Line In Audio Source Not populating

Mar 30, 2020
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Hello, I have a Lenovo Windows 10 pc with RealTek HD. For Sound Recording Devices, I am not seeing a "Line in" option (disabled devices are viewable) and Sound Mixer is populated, but I need to feed audio in from a DJ mixer to stream using Line In. I've installed the latest Realtek Driver, looked at multiple tutorials and troubleshooters but cannot figure this out.

Please please help as my livelihood is dependent on this.

Thank you