CNN The Situation Room December 31, 2014 23:19:00
Recorders are analyzed. >> this is our audio library, especially designed screen room that are shielded from outside signals and as well it's got very good sound proofing. >> reporter: inside the safety bureau laboratory in australia. there are few countries in the world who have the technical know-how to work out what's inside one of these things. and this lab is one of those places. boxes from other investigations torn apart, burned damaged in many ways, suggest a tough assignment. but here they say the story of what happened is usually found. >> a lot of our work is with undamaged recorders...
Source: archive.org