is there any software that can duplicate the mic audio? like something that streamers do but instead of duplicating for different PCs/video streams but to pc/console?
You can connect a auxiliary cable on the line-in on your the PC and plug the other end into the PS4 controller.
On the PS4 settings select to output all audio to headphones.
On the PC, open Sound settings and select the Recording tab.
Right click Line In, select Properties, on Properties, select the Listen tab and check 'Listen to this device'.
Disable any sound effect...usually on the Enhancements tab.