The one from Ohio suggests "vuh-loo-SPAH" and
the one loyal to the Queen suggests "vurloo-spore".

Pseudo-phonetic transcriptions like that must translate
wonderfully over the Atlantic :D

I'll throw my modern pronunciation into the mix:
http://www.hi.is/~haukurth/norse/sounds/voluspa.wav

Kveðja,
Haukur