About

Founded in 2012, Soundopolis has worked on more than 100 projects, including narrative films, documentaries, commercials, corporate videos, and web videos. These works have shown at many festivals and won countless awards, with some even being nominated for Academy Awards and Emmys. His work has premiered in major theatrical releases, on tv and streaming platforms, and during the Super Bowl. The majority of this work involves dialogue editing, Foley, sound design, and mixing.

The Owner

David Fienup, owner of Soundopolis.  Sound editor, sound designer, re-recording mixer, Foley artist.  Ann Arbor, Michigan, Detroit
David in his natural environment: Soundopolis Studio

David Fienup is the sole owner/operator of Soundopolis. For larger projects, he sub-contracts from a list of fellow sound editors, designers, mixers, and composers.

Fienup’s passion for music and training in music production lead him to the field of sound design. He treats all of his work as a composer would treat a musical composition – deep consideration for storytelling, emotional construct, and creative ingenuity.

Throughout his life, Fienup has explored many forms of creativity, including music composition and songwriting, performing in various rock bands, poetry, and photography. He also enjoys taking out life’s frustrations on golf balls and tennis balls! Let’s hit the links sometime!

For more about his work, check out the PORTFOLIO PAGE, or his IMDb Page.




What do I do?

A video I made, in collaboration with the Ann Arbor District Library, to answer the question: “What’s a… Sound Editor?”

The Studio

Soundopolis operates out of a personal Pro Tools-equipped studio in Ann Arbor, Michigan, USA. Designed by Fienup in 2019, the 950 square foot facility, features a large sound design and 5.1 surround mixing room, a 168 square foot Voice Over and Foley room, a lounge, and a restroom. The relaxing atmosphere is great for long days recording voice over, or reviewing mixes. The studio is adorned with various movie, TV, and music paraphernalia for inspiration.

Soundopolis Studio.  Sound edit, design, mixing, Ann Arbor, Detroit, Michigan.
Sound Design & 5.1 Mixing Space


Soundopolis Studio.  Sound edit, design, mixing, Ann Arbor, Detroit, Michigan.
Foley, Voice Over and ADR room.

Soundopolis Studio.  Sound edit, design, mixing, Foley, Ann Arbor, Detroit, Michigan.
The Foley room after 2 weeks of work on a mountain climbing documentary.

In addition to doing the audio wiring, Fienup built many of the acoustic treatments for the studio, including absorptive acoustic panels and skyline diffusers.

Soundopolis Studio. Ann Arbor, Detroit, Michigan.
Hand-made Skyline Diffuser


Soundopolis Studio. Ann Arbor, Detroit, Michigan.
Medium, hand-made acoustic panels. Wood frames with rockwool insulation, and wrapped in acoustic-grade burlap.

Soundopolis Studio. Ann Arbor, Detroit, Michigan.
Jumbo absorptive acoustic panel made from a reclaimed wood pallet, rockwool insulation, and wrapped in acoustic-grade burlap.

Soundopolis Studio. Ann Arbor, Detroit, Michigan.
Small, hand-made acoustic panels. Wood frame, rockwool insulation, Star Wars fabric.