Can you help me solve a mystery? Looking through the Unity sample project, I'm not seeing how the audio track is getting played. Scene doesn't have a Unity AudioSource MonoBehaviour. The code doesn't do anything with audio frames. How is audio getting to the speakers?

Context: In my project, I need to pipe the WebRTC audio track to a spatial audio emitter so that the audio is played at the media player's location in the scene. How can I pipe the audio track to a Unity AudioSource?

Thanks.