An example project for positional first person voice chat in Unreal Engine 4 from the CouchLearn.com guide: https://couchlearn.com/positional-voice-chat-using-blueprints-in-ue4/
This example project is configured for UE4 4.23. Using a newer engine version this project example may not work as intended.
This project uses the Steam subsystem. (Steam Client must be open)
WASD to move
V to push to talk voice chat