Here's a showcase of the current state of audio modding in Elden Ring. In this video you can see a demo of two new NPCs added to the game, with their respective Quest Files, Dialogue, and Voice Banks. This is the first time a custom sound bank is modded into Elden Ring.
Audio Modding Credits:
MagicalShion for all around Wwise Knowledge
ChainFailure for creating rewwise, the audio modding, and adding support for audio modding into ModEngine2
Meowmaritus for initial WEM playback in DSAnimStudio
SekiroDubi for working out how audio FNV hashes are linked to Elden Ring's quest system
Finally, thanks to flesh_knight for kindly providing the Brazilian Portuguese audio for the video intro.
The lady NPC voice is AI Generated.