I need a way to get sound from consoles and PC into my headset. Help?

[Jack_213]

So I know the answer is a mixer but I want to know how expensive I need to go. I'm on a budget but I'm not gonna skimp. I'll get the best I can when I get the money.

 

[13thmonkey]

you can get devices that will split out the audio stream from HDMI, leaving the image to carry on, the audio stream can then be accessed via 3.5mm jack.