Use two sound outputs at the same time?

[Jiraffa]

So, this is how my audio jacks look like. The red is for the mic and the green is for the sound output.

I'd like to use the blue one for sound output as well at the same time (so I can use my headphone and speakers at the same time). Any idea how to accomplish this without downloading Realtek High Definition Audio?
Thanks

Edit: Not sure why the image won't show up. Here's the link https://imgur.com/a/5eBq5

 

[Solandri]

The blue socket is for line-in, kinda like a microphone socket except it's designed for levelized audio from the line-out of mixing equipment.

If you want to send audio to both your headphones and speakers, attach a splitter to your green socket. The sound level will differ depending on the impedance of the headphones/speakers, but that shouldn't be a problem if the speakers have a volume control.

https://www.amazon.com/Belkin-Speaker-and-Headphone-Splitter/dp/B000067RC4

 

[corroded]

Blue is for a Sub or some such output.

If your sound card provisioning allows it, you can use speakers out the rear and headphones out to front side jacks.

Windows 10 can allow this if the hardware supports it.

 

[Jiraffa]

The thing is, Realtek High Definition Audio used to accomplish this. Blue and Green for sound output. I just don't know how to do it through Windows.

 

[Rocky Bennett]

The blue is a line in jack, always has been and always will be.

http://www.hardwaresecrets.com/how-on-board-audio-works/

 

[Rocky Bennett]

Blue is for a Sub or some such output.

If your sound card provisioning allows it, you can use speakers out the rear and headphones out to front side jacks.

Windows 10 can allow this if the hardware supports it.

This is wrong. You can do a simple Google search instead of spreading false information

https://www.google.com/#safe=off&q=pc+audio+pink+green+blue