This mod increases the volume of enemy voice lines. It achieves this by modifying soundbank settings rather than boosting individual soundfiles, so the effect is way more noticable compared to Actually Audible Cops.
This is a quick tweak I did with the help of new functionality I implemented in Soundbank Editor, it is pretty simple to make these adjustments yourself if you want to tweak the volume levels (as long as you know all the sound ids, which you can reference from Actually Audible Cops).