If you wanted to get the sound of a nuclear blast that would be very hard. anything electronic would be wiped by the EMP effect generated by the reaction. It would have to be purely mechanical E.G. like early phonographs- clockwork mechanism, recording vibrations on a cylinder or disk.
CC
Tube-type electronics would probably survive.
Yes, that’s what I thought....the EMP effect reaches the equipment first and fries it, and the sound doesn’t get picked up by the microphone.