Steps to reproduce:
1. Open attached project
2. Set build platform to WebGL or any other (Android, iOS)
3. Check out import settings for "1.mp3" or the attached screenshot "wavratio.png"

Actual result: the displayed clip size is not representative of the end result. It is not clear what is included in it.
Expected result: more clarity and a more accurate size in the context of a chosen platform.

Reproducible on: 5.6.2f1, 2017.2.0f3 , 2018.1.0a2