AI mixing and mastering

Finish the music you started.

Mix and master your stems. For independent artists and producers.

Free to try. No card needed.

Get started for free

Powered by RoEx

Automix project view showing an electronic track, multitrack stems, mixes and masters

Watch the Mix Console Watch the product overview

Hear the difference.

Switch between the original and Automix.

  • Cousins — Electronic
  • Afro Limbo Loopy — Pop
  • High Rise — Rock

Best heard on headphones

Open the playlist on Spotify

Go from stems to a finished track.

  1. Upload stems

    Up to 32 stems. Choose your style.

  2. Shape your mix

    AI mixing, with live Mix Console controls.

  3. Master and export

    Download audio or an editable DAW project.

Send your next track with confidence.

Master your stereo mix or match a reference track.

Try mastering for free

56-second tutorial. Recorded in an earlier version of Automix.

Watch mastering · 56 seconds

“you do in minutes what I used to take days to do”

Steve Callahan — Retired Studio Engineer, NC, USA
Read the full quote

I have to say after nearly 40 years mixing, recording and playing professionally, I am very impressed with your product. Most engineers want to complicate a mix… when a clean simple mix with good levels and panning usually wins. My wife has heard every tune from hundreds of artists out of my studios, and says you do in minutes what I used to take days to do.

“These AI mixing and mastering tools are perfect for us bedroom artists”

Amina Bhatt — Independent Electronic Producer, Leicester, UK
Read the full quote

These AI mixing and mastering tools are perfect for us bedroom artists who know the basics, but don’t have the time to dedicate to learning and purchasing thousands of pounds of equipment/software or hire out a £100 per song.

“Automix lets me finish a track and get it on Spotify the same week.”

Darnell Washington — Bedroom Producer & Beatmaker, Atlanta, USA
Read the full quote

I make beats late at night after work and I never had the budget for a mixing engineer. Automix lets me finish a track and get it on Spotify the same week. My output has tripled and the quality is genuinely on par with stuff I hear on playlists.

Millions of tracks processed with RoEx

Across RoEx products and tools.

RoEx partners with UnitedMasters — mastering powered by RoEx, boombox, MUSIC.AI, Amuse and Yamaha.

Give your next release a clear path.

Mix, master and shape your music. All included in Pro.

Use Pro on the web and desktop.

Explore the web workflow Explore Automix Desktop

Automix inside Ableton Live: coming soon.

Automix Pro

See plan and billing details

  • Mix projects with up to 32 stems
  • Mastering + reference matching
  • Web + full-quality Desktop; Mix Console on desktop + supported computer browsers
  • Audio cleanup
  • Mix reports and audio analysis
  • Unlimited mix/master downloads, processed stems + DAW exports
  • 5 GB of web audio storage

Get started for free

Money back if you haven’t downloaded audio with Pro.

Free sample downloads don’t count. Refunds apply before you download audio using your paid subscription. Contact us to request one. support@roexaudio.com

An AI song mixer for artists and producers.

Automix is AI mixing and mastering software from RoEx for independent artists, beatmakers and music producers. Bring separate vocal, drum, bass and instrument stems from your recording session. Automix analyses the tracks together and creates a balanced starting mix, helping you hear how the parts fit without setting every level and processor by hand.

Use the live Mix Console to shape the result by ear. Adjust the balance of vocals and instruments, compare your changes, and keep the creative decisions in your hands. Whether you are finishing a demo or preparing your next release, you can start with the music you have already recorded.

Mixing combines your separate tracks; mastering works on the finished stereo mix. You can master an Automix result or bring a stereo mix of your own. Work online in your browser, or use Automix Desktop on Mac or Windows for local mixing and mastering. Try the previews for free before choosing a download option.

Make your next move with confidence.

Do you train on my music?

No. We never train our models on your uploads. Automix mixes and masters the music you bring, and you keep every right to it.

Read our AI statement
Do I need mixing experience?

No. Automix creates a starting mix from your stems. Use the live Mix Console to adjust it by ear, and Mix Insight to understand the changes.

Does Automix balance vocals and instruments automatically?

Yes. Upload your vocals and instruments as separate stems, and Automix analyses them together to create a balanced starting mix. It suggests levels, panning, EQ and compression to help the parts work together. You can then adjust the vocal and instrument balance in the live Mix Console on web or desktop.

Can I master a mix or use a reference track?

Yes. Master a stereo mix on its own, or use a reference track to guide its sound. Mastering and reference matching are included in Pro.

Can I keep working in my DAW?

Yes. Export processed stems and editable DAW projects, including Ableton Live sets, from the classic mixing workflow. Mix Console exports a final mix and processed stems. Automix inside Ableton Live is coming soon.

How does Pro billing work?

Choose monthly or yearly billing for one subscription covering web and desktop. You can request a refund before downloading audio using your paid subscription. Free sample downloads don’t count.