How the Xbox voice changer workaround works
A voice changer needs a computer in the middle: it takes your microphone, converts the voice, and passes it on. Xbox consoles do not allow that, so the PC becomes your voice chat device. Your console plays the game, and your PC carries your converted voice into the same party.
Mute voice chat on the console itself, so friends do not hear both your real voice from the controller headset and the AI voice from your PC.

