Good afternoon Chuck! Thanks for uploading the great file.
Nothing like a nice EVP to sink my teeth into. And you're right the quality has degraded significantly.
Seems the highs are mostly wiped out. Must be from an analog (magnetic tape) recorder.
Not knowing what area of the EVP you're talking about, I'll go under the assumption that the very first part was a known person's voice. Because it seems way to forefront to be an EVP.
So the next part I hear at a file index of 4.2 seconds to about 5.5 seconds into it. I've amplified it, and listened to it several times.
I must say, that to me this sounds like "Help! Heart attack..." Was there by chance anyone that died there who died of a heart attack? Its a male voice. And sounds like someone in their 50-70's.
I'll keep looking for more in the file.