Audio Post-Production + Music for Advertising · SF Bay Area & Beyond
We write the track. Build the sound. Record the voice. Mix the spot.
Swell is a world-renowned audio studio for agencies and brands. Commercial mixing, sound design, voiceover recording, custom music, and music search.
Nike · Meta · Atlassian · CrunchLabs · Golden State Warriors · United Healthcare
Hear the work → Send us a brief →
Your Story, Our Sound.
One team from first demo to final mix.
Our composers think about the mix while they write. Our engineers know when the music needs room to breathe. You can bring us one piece of the job or the whole thing. Either way, we get into the details.
Dialogue up front. Music with room to move. Every sound doing its job.
Send us your OMFs or AAFs. We’ll bring the elements together and deliver the final mix to spec for broadcast, streaming, and social. .
For the Golden State Warriors, we turned about 100 recorded arena sounds into a holiday track. Shoe squeaks. Hoop swishes. Ticket scans.
That’s how we approach sound design: find what makes the story yours, then build from there.
The right voice. The right read. Someone listening for both.
We handle casting, direction, recording, and dialogue editing, in studio or remotely over Source-Connect. Our voiceover work includes Atlassian and Hasbro. Your team can join the session from wherever the job takes you.
Sometimes the track needs to follow the picture. Sometimes it needs to give the whole campaign its identity.
We compose to your brief, your cut, and the feeling you’re chasing. For United Healthcare, that meant developing a sonic identity with Turner Duckworth and Leo Burnett. Bring us a reference, a rough idea, or something you haven’t quite found the words for.
10,000+ tracks. And people who know where to start.
Topshelf is our curated music catalog. Tell us what the spot needs and we’ll pull a shortlist worth listening to, help shape the edit, and work through licensing for the intended use.
Need something written from scratch? The composers are right here.
Custom music for Meta. Sound design and mix for Nike. Arena sounds turned into music for the Warriors.
Different briefs. Different sounds. Here’s what we made.
We’re composers, sound designers, engineers, and producers. We like a good creative problem, a real conversation, and any excuse to press record.
Tell us what you’re making.
And when we’re not making sound for brands, we’re making room for artists. Meet Swell Sessions, our live music showcase.
