Its customary to have the body of your thread with the most content while the title is clear and concise. That being said since we're dealing with a PS4 have you connected your headset using an adapter like this?
You may also want to read through these:
http://www.neogaf.com/forum/showthread.php?t=720500
http://www.gamespot.com/forums/playstation-nation-1000002/mic-echo-problem-30930661/