DeMarinis received a B.A. in Music and Filmmaking Interdisciplinary from Antioch College. At the college, DeMarinis studied film with Paul Sharits, music with John Ronsheim and philosophy with Keith McGary.
DeMarinis received an M.F.A. in Electronic Music and the Recording Media from Mills College. At the college, DeMarinis studied music composition with Robert Ashley, Terry Riley video with Phillip Makanna.
DeMarinis' performance pieces and interactive installations have been featured in exhibitions and festivals. DeMarinis received a 1996 Foundation for Contemporary Arts Grants to Artists Award. He received the Golden Nica Award for Interactive Art at the Ars Electronica Festival for his installation The Messenger (2003).
DeMarinis has investigated abandoned technologies and the history of electronic inventions and telecommunications. Some of his installation works have used optics and computers and featured processed and synthesized speech.
DeMarinis taught computer, video and audio art at Mills College, Wesleyan University, San Francisco State University and the New York State College of Ceramics. He is a Professor of Art at Stanford University in California.
- Helmholtz (DUO) (2015) 
- Tympanic Alley (2015) 
- Jiffy POP (2013)
- Pneuma (2010)
- The Probable Flight Path of AF447 (2010)
- Around the World (2010)
- Dust (2009)
- Early Media goes to the Movies (2008)
- Hypnica (2007)
- Rome to Tripoli (2006–2008)
- A Light Rain (2004) in collaboration with Rebecca Cummins
- Firebirds (2004)
- Tongues of Fire (2004)
- (Tommy Franks) Dérive Quebec (2003)
- Rebus (2003)
- Wavescape (2003)
- According to Scripture (2002)
- Moondust Memories (2001)
- Walls in the Air (2001)
- The Products of Our Industry (2000)
- Four Foxhole Radios (2000)
- The Lecture of Comrade Stalin... (1999–2002)
- RainDance / Musica Acuatica (1998)
- The Messenger (1998)
- Grind Snaxe Blind Apes (A Study for Pomeroy's Tomb) (1997)
- Living with Electricity (1997)
- Sound Waves and Scan-O-Vision (1996)
- Gray Matter (1995)
- Chaotic Jumpropes (1994)
- The Edison Effect (1989–1993)
- An Unsettling Matter (1991)
- Fireflies Alight on the Abacus of Al-Farabi (1989)
- Alien Voices (1988)
- Voice Creatures (1986)
- Music Room / Faultless Jamming (1982)
- Sound Fountain (1982) In collaboration with David Behrman
- Sounds and the Shadows of Sounds (1979)
- A Byte at the Opera (1977) performance with Jim Pomeroy 
- The Pygmy Gamelan (1973)
- A Listener's Companion, Het Apollohuis Compact Disc (Holland), 1995
- Music as a Second Language, Lovely Music, Ltd. CD 3011, 1991
- Mind Power, Tellus Audio Cassette Magazine #22, 1989
- I Want You and Kokole, on "Another Coast: Electronic Music from California," Music & Arts CD 276, 1988
- Eenie Meenie Chillie Beenie and Yellow Yankee, Tellus Audio Cassette Magazine #9, 1985
- She's-a-Wild, Record Records RR 101, 1981
- If God Were Alive (& He Is) You Could Reach Him by Telephone & Forest Booties on Lovely Little Records, Lovely Music, Ltd. LP 101-6, 1980
- Great Masters of Melody on "Just for the Record," "Blue" Gene Tyranny, keyboards, Lovely Music, Ltd. LP 1062, 1979 
- "Artist bio on SolwayJones gallery website". solwayjonesgallery.com. Retrieved 2010-07-25.
- "Paul DeMarinis". 23five.org.
- "The League of Automatic Music Composers 1978- 1983". newworldrecords.org. Retrieved 2014-09-09.
- Electronic and Experimental Music: Technology, Music and Culture by Thom Holmes. Google Books. Retrieved 2010-07-06.
- "Talking Flames and The Boy Mechanic: A Conversation with Paul DeMarinis" (PDF). ambidextrousmag.com. Retrieved 2010-07-25.
- "Paul DeMarinis". lovely.com.
- "Paul DeMarinis". art.stanford.edu. Retrieved 2014-09-09.
- "Performance Anthology". google.com.
- "Paul DeMarinis". lovely.com. Retrieved 2010-07-06.
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