Windows 10: Audio Splitter not working properly

I just bought a new audio splitter from amazon because my predator helios 300 has only 1 audio jack, I wanted to use a headphone and a separate mic,
when I plug in the audio splitter it prompts me to select between the following
Line in
Mic in
Headphone
Speaker out
Headset

Which one of the above should I be choosing, because I chose Headset and now the audio is playing through my mic, its very strange

and on the audio splitter if I connect my headset to where it says headphone, it wont play any audio, can you please help me resolve this?

:)

 

Headset microphone (with audio splitter) not working

My Acer Predator (Helios 300) laptop has a singular audio port, which I use with my headset that has a separate microphone and headphone cable. I have used an audio splitter to get around this issue for a while now, and it has worked perfectly fine. Normally
when I would plug the splitter in, a prompt would appear asking what type of device was just plugged in, options were headphones, speakers, microphone, headset, and one or two other options that I don't remember because I never used them. I would select "headset"
and it would work just fine. Recently, something changed. This prompt no longer appears, and my computer no longer acknowledges the microphone on my headset, instead using the default internal microphone. The headphones still play audio like normal, but I
have found no way to get the microphone working.

If I just plug the microphone chord into the audio jack, it still does not work, and the computer refuses to play audio.

So far I have tried:

• Uninstalling and re-installing the audio drivers (multiple times)
• Updating windows
• Running the audio troubleshooters (Both for playing audio and recording)
• Checking for updates to Dolby
• Scanning for hardware changes in device manager
• Disabling the default microphone

None of these have done anything.

I'm really at a loss here. I consider myself pretty computer savvy but nothing I've tried has gotten me anywhere.

 

Problem with combo jack, external microphone not recognised while using an audio splitter (3.5 mm out)

About a month ago I installed Bootcamp because you know windows are better for gaming. FYI, I had this XLR microphone, which then I bought an audio splitter so that I can connect it to the combo jack. It worked
fine least to say on MacOS. My boom arm broke, so I wasn't able to use the mic in win10. So a week ago, I bought a new boom arm, connected my mic (with my headphones) to the audio splitter then to the combo jack. To my surprise, it wasn't working. I tried
all the methods I could find on YT, but nothing helped. Now I am just stuck here using my headphones mic. I need a fix ASAP. Well, there were 2 options:

1. Internal Mic
   
2. My headphones mic (but it is disabled when I use the audio splitter)
   

In macOS, the audio splitter will replace the Internal Mic as External.

Just reply if you have more questions

PS : Idk what to choose for the topics

 

headphone splitter

my pc has two ports for mic and speakers. they have been working fine till yesterday. whenever my audio jack is in i can hear but when my mic jack is also in i cant hear anything. i went to control panel to see what was wrong and whenever the mic was in
it didn't register the audio! the headset works fine on my phone but i think its the splitter. i was thinking about sending the splitter back but ask here before i do. please get back asap.