It's no longer anonymous. Parts of the Lion Air's PK-LQP CVR conversation leaks which propagated through many news sites have been confirmed by Nurcahyo Utomo, the head of the air accident subcommittee of the Indonesian National Transportation Safety Committee, who listened to and described the contents of the cockpit voice recorder that was retrieved from the ocean floor in January.
Some excerpts:
===============Confusion, Then Prayer, in Cockpit of Doomed Lion Air Jet
...Indonesian aviation regulations bar the public release of a transcript of the audio in a cockpit voice recorder. But investigators from the National Transportation Safety Committee who listened to the recording described the sounds emanating from the cockpit as the flight crew fought to take control of a plane that seemed almost magnetically propelled toward earth.
Throughout the brief flight, an ominous rattle could be heard on the voice recorder, evidence that a device called a stick shaker was clattering to alert the pilots of a potential stall that could lead to a crash, said Ony Soerjo Wibowo, an air safety investigator. A stall can occur when a plane ascends too sharply...
...In the cockpit voice recording, the pilots discussed unreliable airspeed and altitude readings they were getting, national transportation safety officials said.
They consulted the manual to deal with these anomalies. But they did not seem to know about the MCAS system, nor did they speak about what was causing the plane to repeatedly push downward...
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https://www.nytimes.com/2019/03/20/w...sh-boeing.html