unity-webrtc-opus-audio
Simple workaround to send audio through Unity's WebRTC plugin by encoding the Microphone input with UnityOpus and sending it as a byte[] through the DataChannel. I just modified the existing code from both plugins and merged them in a simple example. Credit goes to Unity-Technologies, TyounanMOTI and lstemple who pointed to UnityOpus.
Setup
Install the WebRTC plugin by adding git package URL:
com.unity.webrtc@2.3.3-preview
Tested
Tested with Unity 2020.2.3f DX11 (Windows10)