I know that Brian Meehl performed Elmo in the Monsterpiece Theatre sketch Me, Claudius. He also performed Elmo in the song We're All Monsters, but after kevin Clash took over, Kevin dubbed Elmos lines. I wonder if Richard Hunt dubbed over Elmos lines in the song. Anyway, I think both of those skits have been shown on Noggin.
A&E Biography Close-Up: Sesame Street showed a brief clip of Elmo talking in Monsterpiece Theatre: Me, Claudius, but the narrarator mistakingly says that Richard Hunt performed Elmo in that skit. Elmo's voice in that scene does not sound like any Richard Hunt voice I've heard, and besides, Richard Hunt was performing another monster in that scene (although it was very common during the early years for performers to perform multiple voices in the same scene, even if that scene didn't have any regular characters at all).
Oddly enough, Brian Meehls Elmo doesn't sound like any other Brian Meehl voice I've heard (I've heard his Telly Monster, Mr. Knack and Bogg from Eureeka's Castle, Bruno from Dog City, a bear from the Marty Feldman episode of The Muppet Show, and Tattooey from The Muppets Take Manhattan). Did Brian Meehl use that voice for any other character?
Watching that clip, I thought that Elmo sounded similar to other characters that kevin Clash performed, such as Benny Rabbit. I know that kevin Clash took over the role of Dr. Nobel Price, who was originally performed by Brian Meehl. Did Dr. Price originally have the same voice as Elmo originally had?