Takata
Hi Takata
"(...)" itself may never be known (as opposed to deliberately omitted, and even then it could easily be ambiguous).
There is a widespread misconception that CVRs are easy to decipher. They most definitely are not. The hardest day's work that I ever did (and certainly the most emotionally draining), was not landing my Buccaneer on a flight deck or landing a 747 on various runways where ideally wide bodied jets should not go anywhere near (thankfully fewer in number these days), but a day at the AAIB helping investigators to make sense of what a F/O that I knew had said shortly before his death on duty.
It's hard work for the BEA, even with input from close colleagues of the deceased flight crew.
The cockpit issues you refer to are troubling, border line the other extreme to the CRM Van Zanten/Meurs issues.