I've gotten the morse from the recording - but it's coming out to be some sort of cipher format that I don't recognize. I'll have to think on it and maybe I'll try to get a better recording to see if maybe I missed something, but it's doubtful since the cipher just seems to be made up of As, Ds, Fs, Gs, and Xs and I don't see any outliers (other than punctuation).
Edit: Okay, maybe I'm going crazy, but I swear that the message that blizz2192854 posted is NOT the same as the one that Epstein posted. I only transcribed a bit to make sure what I had was still accurate and I got a completely different combination of letters:
Also, blizz's recording is only 2:04 long (with both intro and outro voice). Epstein's is 2:45 (with intro and outro).