Where picture finds its voice
Mixing, sound design, voice and immersive audio for the commercials, series and films people remember. Five studios in the heart of San Francisco.
Featured work
Now playing
The spaces
Built for critical listening
Five private studios, including two Dolby Atmos 9.1.4 mix stages. Led by a team of senior engineers and supported by a handpicked network of specialist collaborators, we shape sound for advertising, television, and film.
Dialogue Stage
Studio 1
Our original 5.1 surround mix room: acoustically perfect, with a view of the bay.
Mix Stage
Studio 2
A natural light–filled room, specialized for commercial mixing and sound design.
Design Suite
Studio 3
Sound design, mixing and ADR, with a supernaturally quiet VO booth.
Immersive Stage
Studio 4
A 9.1.4 Dolby Atmos mix stage, one of the first built in San Francisco.
Scoring Suite
Studio 5
Our most capable room and biggest playground: build sound design, produce music and mix in 9.1.4 Atmos, all in one place.
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Private booking
Private by design
Every session has the room to itself, with a dedicated engineer, around the clock.
From first cut to final mix
- 01
Voice-over
Voice-over recorded in a supernaturally quiet booth, with talent in the room or remote over Source-Connect. Direct from the control room or from anywhere.
- 02
ADR
Automated Dialogue Replacement recorded and matched to picture, with cast and director in the room or on the line.
- 03
Mixing
Final mix in stereo, 5.1 Surround or Dolby Atmos 9.1.4: dialogue, music and effects balanced to delivery spec.
- 04
Sound design
Original sound effects, foley and layered ambience built from the ground up for each frame.
- 05
Dolby Atmos
Immersive mixing in two certified Dolby Atmos 9.1.4 rooms, with native Atmos deliverables for streaming, broadcast and theatrical release.
Trusted by
- Advertising
- Nike
- Apple
- Jeep
- Coca-Cola
- Dolby
- AT&T
- BMW
- Hershey’s
- Meta
- Comcast
- Chevrolet
- Pizza Hut
- Audi
- Feature films
- Pixar
- Walt Disney
- Warner Bros.
- DreamWorks
- Skydance
- Series & TV
- HBO
- Discovery
- Netflix
- Nickelodeon
- The Muppets
- Games
- PlayStation
- Blizzard
- Valve
Since 1995
Three decades behind the glass
John McGleenan founded One Union in 1995 with a single room at 1 Union Street, in the heart of San Francisco’s advertising district. Today it’s five studios, shaped around the clients who come back year after year.
Three decades of advertising, television and film have passed through these rooms and out to audiences around the world. The work is meticulous, discreet and built around the picture. The consoles change; the standard doesn’t.
Start a project
Let’s hear it
Tell us about your project and we’ll pair you with the right studio and engineer. Sessions available around the clock.
- Hours
- Open daily · 24/7 by booking
- Phone
- (415) 675-7477
- Parking
- Limited private parking available