[1][2][3] Prum was born in Fullerton, California, attended Troy High School's technology magnet,[4] and later studied sound for film & video as an undergraduate student at the California Institute of the Arts (CalArts) in the 1990s under John Payne, Craig Smith, and Doug Loveid.

[8][9] After graduating with a Bachelor of Fine Arts degree, Prum worked as an Electron at Jim Henson's Creature Shop[10] and then briefly at Disney Online.

After being let go, he inquired during a CalArts job fair about employment opportunities in the sound department of LucasArts Entertainment Company.

[25] In August 2014, Prum recovered the aging audio archives of the classic point-and-click adventure game Grim Fandango as part of Double Fine Productions' restoration and remastering effort.

[26][27] He also worked with composer Peter McConnell to record and mix the new orchestral score, performed by the Melbourne Symphony Orchestra.