This page is intended to summarize a few changes to the Listen skill and how it modifies whisper distance.
In base NWN, the normal listening distance for whispers is 3 meters.
On KON, Listen skill ranks now increase the distance at which you can eavesdrop on a whispered conversation.
Every 5 ranks in the Listen skill will allow you to hear whispered conversation at one additional meter away, up to a maximum of ten meters at 40 Listen skill.
Whispered use of languages other than Common has been modified, so these whispered messages in other languages are only displayed if your listen score is high enough. Of course, you must know the language spoken to understand what you heard.
These modifications enable whispered conversation to carry through walls.