[Solved]Playing sound after exiting letter

[Spelos]

Not really,
since PlaySoundAtEntity() supports only .snt files, you can take a look into the .snt file you want to be played and there are values like "Volume=0.8", those can be changed. You can open it with any text editor.

If the .snt file is from original Amnesia, you can just create a copy, name it differently,
(for example 01_door_creak_custom.snt instead of 01_door_creak.snt)
and you are free to make changes. Just remember to call your custom .snt file instead of the original one in the PlaySoundAtEntity function.