I looked through the folder and a folder from another version.
From v0.7 for example was the first soundeffect "horror1" the first for SCP-895 effect and the second "horror2" for the deadly one.
In version v.0.8.2 it exists "horror0" for the first and "horror1" the deadly one.
That whole shift causes that all sound effects play in wrong situations.
Proof: v0.8.2 just a little bit of the source code for SCP-049
and the same for v0.7.3
"Horror13" was the appearing sound for SCP-049 with the breathing and stuff in version 0.7.3.
Now "Horror13" is the catching sound. And that is why "Horror14" (the SCP-173 scare sound) plays when SCP-049 gets you.
After SCP-049 gets you, the first line (MTF_1) is now completely missing.
SCP-895 has wrong sound(?) too
as seen here: viewtopic.php?f=6&t=3320