How to use Audio Combo port as line In?

[NamasteFromInd]

Hi everyone,

I am having trouble with the combo audio port of my laptops. I want to use external audio sources for which I have used :

https://www.amazon.in/gp/product/B00SO68KO0/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

and 

https://www.amazon.in/gp/product/B00CPEZ4J6/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

and 

https://www.amazon.in/gp/product/B010FO20R6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

The cable goes in the microphone port of the splitter/adapters. Listen to this device is checked under sound->Microphone-Recording but no sound comes out of the laptop speakers. 

I can't capture any external audio into softwares like OBS or Premiere Pro.

What am I doing wrong? Please help me to use the Laptop Combo port as Line in port.

Thanks in advance.

[banhien]

@NamasteFromInd

No, you can't use it as line in, you need USB sound card with line in such as

   https://www.amazon.com/USBGear-Audio-Adapter-Line-Input/dp/B01N2RPZTU

Regards.

[NamasteFromInd]

Thank you for your suggestion.  I have tried USB and It worked but I needed the combo port to work as Spectre has one less port then needed.

External Capture box goes in one USB-A, One USB C is used for Network Adapter and another USB C for power, No port left for Sound card.