I wanted party chat audio to work alongside game audio when streaming to PS4 so I used that. I connected one end to the controller and the other to Elgato. You can then connect any headphones to the other side. Set your PS4 audio output to TV OUTPUT, then go back to el gato and switch audio from HDMI to analog line-in. The cable itself makes noise when you move it, but if you don't move it much nothing happens.
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