Does the one who says "Amen" behind the supplicator count as supplicating, and is it permissible to say "Amen" behind a pre-recorded supplication?

"Amin" (saying Amen) to someone else's supplication makes the one who says "Amin" like the one who supplicates. As Ibn Kathir said in his commentary on the verse, "He said, 'Your supplication has been answered'" [Quran 10:89], Aaron said "Amin" and thus was considered as if he supplicated. Similarly, it is stated in Al-Durr Al-Manthur by Al-Suyuti that "the supplicator and the one who says Amin are partners." It is hoped that this applies to saying "Amin" after hearing a supplication from a recorded audio.