There was another observation, that of 500+ messages in total in the record the public got access now to - 100+ messages are marked "unrecognisable".
As per conditions on May 2nd.
Compare with MAK statement on May 19th "we have completed deciphering, additionally using some spec. equipment, and now the record deciphering is done over with".
However the public was given access to the "Version 1 of the Variant 1" (stamp across every page), and dated May 2nd.
How many more are still kept non-disclosed.
Polish media interviews say 20 people from Poland flew over to Moscow in May to tell the voices. Surely they figured out some. Plus the "special equipment" applied for noise filtering and all. I think real amount of "unrecognisable" stands far less than 100+ , since May 19th.