@A0283
We do not know from the report if an (in my view necessary) extra CVR effort was made here or asked for by the NTSC. Like we have seen in for example Silk Air.
Actually we do know that BEA performed spectral analysis of the CVR. For example, the utterance "Oh my God" (in English) on the CVR was initially attributed to the FO. However, BEA spectral analysis showed that it was the Captain who uttered this phrase. BEA Item 52, p. 187.
"Mishandling" was a word suggested for insertion by BEA by the way, but rejected by the NTSC.
That word was rejected in the Synopsis 3rd bullet point but was already used by NTSC in the 5th bullet point. See the original NTSC wording in BEA Item 10 (Accepted): "Subsequent mishandling resulted in the aircraft departing the flight envelope..."
In the Final Report the 5th bullet point was again rephrased to "Subsequent flight crew action leading to inability to control the aircraft in the Alternate Law resulted in the aircraft departing from the normal flight envelope..."
(The rephrasing was mainly to avoid discussion of "deep stalls" which as we've seen is another can of worms).