Vive Foucus 3 - unity - Wave XR - how to request permition to use microphone

[David Conway]

Hi i am trying to develop a app that requiers the use of the microphone.
But im running into a issue that i need to give permission to use the microphone but cant find how to get the prompt to pop up.
the only solutions i can find are for the old wave sdk and dose not work with waveXR and i can not find the equivalent functions, just changing the manifest doesn't seem to help
and help in pointing me in the right direction?

Edited January 5 by David Conway
minor spell corections