Listen to This( Complete Scoundrel, p. 87)
[Mental, Skill Trick]
You can perfectly repeat to others what you hear.
Listen 5 ranks,
Whenever you make a successful Listen check to hear a noise, you can describe that sound any time up to 1 hour later with such clarity that any individuals hearing the description are treated as if they had heard the sound themselves.
This trick is particularly useful if you overhear a conversation but don't understand the language spoken, since it allows you to repeat it verbatim to an ally who might be able to translate.