Thanks for sharing that, I can see why you think it could be Freddie but I'm not sure myself.
Where did you get it from? How much else do you know about it?
All I know is that it's not from a queen album and it seems to be an hidden track. You can see there's two voices. I don't think the low one is Freddie's, but the other... I don't quite know, and there's a lot of effects...
Years and years ago, before I really collected Queen (probably around 1996) I came across a bootlegsingle which was called Gloria and had a Freddie from 1974 on the front (with the wings-costume). Didn't buy it and never saw it again. Probably wasn't a genuine FM track, but it may be where this sample comes from?
This track appears to me as it was 'slowed' down a bit; maybe you could run it faster and then we will see what it is. Besides, it sounds like an 80s pop song (to me)...