What is this?
David Cameron's birthday.
It's a home recording, from 1979, originally transmitted as part of the Lost Lennon Tapes in Oct 1988.
In that case, it's rather poignant -- which I suppose was your point. I now feel foolish for not working it out from the dates that appear right at the end of the video.
I thought the voice was pretty distinctive. But maybe that's because I've spent too many hours listening to Lennon bootlegs...
Btw, I heard some of that voice on the radio yesterday, where they were talking about the ebook version of All We Are Saying, and played some audio clips from the interview in 1980.http://www.npr.org/templates/story/story.php?storyId=130429818