I KNEW IT! You are here just to take the piss!!
But guess what... I'm going to shock you with a REAL answer to this. There isn't a mic processor for this YET...
A piece of software exists that CAN emulate a persons' singing voice as long as there are certain vowel sounds available. But it hasn't been released and is still being developed. But it DOES exist and is a very real possibility that Freddie could be made to sing once more.
Peace,
Adam.