Avatar descriptor can cause you to hear yourself
Zarniwoop
When you upload an avatar and assign a mesh as "Face mesh" and not select any blendshapes in the dropdowns, then using the avatar ingame you will hear yourself. If you change world when wearing the avatar you don't hear yourself anymore.
This avatar ID has the issue:
avtr_fdd9bee1-b4eb-4651-ad35-91bad2e3d76d
Log In