title: Unity VideoPlayer audio broken after an Agora.io video call
body: <p>Our application has a scene that does video calling built on agora.io and another scene which plays videos using the Unity VideoPlayer. The problem is that when opening the video player scene after leaving an agora.io call the video playback does not have any audio. This only seems to be a problem on iOS. Android playback is fine.</p>
  <p>In xcode when trying play the video we see a lot of the below error repeating while the video plays:</p>
  <blockquote>
  <p>AudioSampleProvider buffer overflow. 4096 sample frames discarded.</p>
  </blockquote>