I’m currently at work so I’ll be as accurate as I can remember. I enable stereo mix and set it as default under the recording tab, I’ve tried setting my default sound device (the device listened to) to, default speakers, the headset, and hdmi tv and playback to the devices unused. I.E listen to default speakers, playback through HDMI tv, and vice versa. Like I said before I used sound mixer for duplicating audio before with my other headset and it works fine. Could it be that my new headset being wireless has built in audio drivers that’s causing the conflict? I’ve been googling this extensively for a day now with no solution it’s so frustrating! Lol If that isn’t clear enough I can enable sound mixer, and the device I use as my default works fine for audio, if it’s the hdmi audio, default speakers, or razr nari whatever device that is supposed to be listening to is working, I can’t make the sound duplicate though through the device that’s supposed to be playing back, but like I said I’m at work so it’s hard for me to be very specific, I can send screenshots when I’m home later this evening.