Hello everyone ! I just found some interesting audio files on a forum which was talking about the Evangelion franchise. Someone rearranged some audio clips of Unit-01's howl (the one from the original Neon Genesis Evangelion) so that we can hear the real voice behind this terrific sound.
Yes, you can definitely hear the voice of Megumi Hayashibara. Also, yes, it's very, VERY disturbing..
Click here, here, and here. to hear the beast !