How to reproduce:
1. Open the attached project
2. Play Far Plane scene
3. Make sure Audio Source Spatial Blend is set to 0
4. Click play button for video to start playing
Result: Audio is very silent as it depends on Audio Source distance when it shouldn't

Notice: You can switch between Audio modes-> Audio Source, Direct and None. Sound with Direct is just fine. Also you can switch between videos, there is H265, H264, VP8, same issue with all there videos.

Reproducible: 2019.1.0a13, 2019.1.0a12
Not reproducible: 2019.1.0a11

Tested and reproduced on:
MacBook Pro OSX 10.14,
iPad Pro 10.5’’ iOS 10.3.3, iPhone XS iOS 12.0, iPhone 6S iOS 11.0
VLNQA00122, Samsung Galaxy S9 (SM-G960F), Android 8.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72