It's a great piece and the voice is that of Charles Shere, the Berkeley composer and sometimes music critic. He did a companion piece "Perfect Days" using cross synthesis, as I remember, again with Shere's voice and an improvisation that the jazz flute player, Tim Weisberg, recorded specifically for the piece.

Whether or not there is a CD I don't know, but I am sure that if you emailed Andy he will let you know There was a recording made in the 80s "The Digital Domain," which may include one or both.