title: Unity: video is playing without sound (2017.3)
body: <p>When using unity 2017.1 Video is played with sound. And audio without a video also played well.</p>
  
  <p>When I upgrade to unity 2017.3 video is played without sound, while audio file without video is played well (sound is on).</p>
  
  <p><strong>Edit:</strong></p>
  
  <p>When building the application to windows sound is working.
  The problem seems to appear only in editor.</p>