Text seen/voice heard subitle delay is inverted

When using the "voice heard"/"text seen" subtitle synchronisation feature, the delay appears inverted.

Description

If I select voice heard first, then text seen, it means the subtitles are late, however the computed subtitle delay is positive, meaning that it will arrive later than it already does. This effectively doubles the delay instead of compensating it.

Expected behavior

If I select voice heard then text seen, the delay should be negative, since the text is late If I select text seen then voice heard, the delay should be positive, since the sound is late

Actual behavior

The current behavior is the opposite of what's expected

Context

App version

3.3.0 beta 7

Android version

8.0.0 & 10.0.0

Device model

Nexus Player/Pixel2 XL

App mode

** Smartphone **