Windows 10: How to disable laptop mic but not disrupt external audio signals?

I'm getting back into recording music on my Dell Inspiron M531R laptop for the first time in a few years and noticing an issue with the laptop mic staying on that I don't remember encountering before. I'm sending microphone and guitar audio through a Presonus Audiobox USB and using the program Studio One 3 to record and mix. As soon as I arm tracks to record in the program I'm getting some white noise in the background which I finally figured out is due to the fact that the Realtek High Definition Audio microphone inside the laptop is remaining active and sending everything it hears int

:)

 

Can't hear external audio device through mic input

Maybe, according to my engineering knowledge. Some line in signals is not supported because the voltage going through is high, which may cause some disruptions in signal. Maybe the jack socket on your laptop only supports mic in and audio out to speakers,
headphones, headphone mics, and PC mic.

Should you have more concerns, feel free to post.

Regards.

 

Mic/Headphone ports not working correctly - Acer Aspire 7745

The speakers are 'plugged in' already as it is a laptop. With no external mic, headphones or external speakers plugged in, the Sound Control Panel lists three things under 'Playback' - HDMI, 'Speakers' and 'Realtek Digital Output' - the Speakers under 'Playback' is set as the default.

Under 'Recording' with no external mic plugged in these are listed - 'Microphone', 'Line In' and 'Stereo Mix' (Disabled) - the microphone (in this case, the internal one) is set to 'Default' under 'Recording' as well.

I don't have my headset here to test an external mic right now, but with normal external headphones plugged in, there is no change to the Sound Control Panel under 'Playback' - the same three listings (HDMI, 'Speakers' and 'Realtek Digital Output') with 'Speakers' set as the Default. If I make a noise, say, play a video, I can see the sound meters move to the sound, but no sound comes out of the headphones.

 

Laptop unable to work with external mic

I tried to connect my external headset (headset without mic)
and a external mic to my laptop via a splitter headset work just fine but mic wont work. But the mic will work if it is connected directly to the audio jack
(aslo i tried the splitter with my gaming headset with mic and it works just fine) (tried update and reinstall driver) (just to add on i also bought another splitter but also wont work)