Audio Modernization

Bring Your Entire Catalog Into the Immersive Era

End-to-End AI Immersive Production for Legacy Recordings

Give classic recordings another dimension. Spatial9 separates every instrument from your finished stereo masters, places each one around the listener in 3D, and delivers publish-ready immersive versions - at catalog scale, even when the original sessions are gone.

Custom plans for catalogs, libraries, and platforms.

Key Features

No Sessions Required

Start from the final stereo master. Our AI isolates vocals, drums, bass, and other instruments automatically, so lost or unavailable multitracks are no longer a blocker.

Placement Guided by GravityLLM

GravityLLM, the Spatial9 model trained on how sound should be arranged in space, positions each source so the immersive version respects the character of the original recording.

Reuse Existing Atmos Masters

Already have Dolby Atmos ADM masters? Convert them to Eclipsa Audio for free with no remix, verified by our Intent Fidelity Score.

Immersive Deliverables

Receive ADM, Eclipsa Audio (IAMF) for YouTube, binaural for headphones, and Ambisonics, depending on your plan.

Catalog-Scale Processing

Submit hundreds of tracks in batches, track job status, and connect delivery through our API and webhooks.

Headphone Preview

Review every immersive version with binaural rendering on ordinary headphones before approving delivery.

Why Choose Spatial9

New Life for Old Recordings

Anniversary editions, reissues, and deep cuts get a premium immersive version alongside the original stereo release.

Minutes, Not Weeks

A finished immersive mix arrives in minutes instead of a full studio pass per album, so whole catalogs become realistic.

Consistent Quality at Scale

Every track in the catalog receives the same careful treatment. No engineer fatigue and no quality drift from album to album.

Open, Royalty-Free Format

Eclipsa Audio is the open 3D audio format built on IAMF. Spatial9 is a member of the Alliance for Open Media, which maintains it.

Proven at Scale

Spatial9 debuted at CES 2025 with Google and Music AI, partners with AudioShake, and has delivered 1,000+ immersive tracks for Pozalabs.

Plans That Fit the Catalog

Teams get custom plans, and the API offers pay-per-track pricing with a custom volume plan for large catalogs.

How It Works

1

Submit finished stereo masters, stems, or ADM masters

2

AI isolates the instruments in each recording

3

GravityLLM places each source around the listener in 3D

4

Preview immersive versions with binaural rendering

5

Receive ADM, Eclipsa Audio (IAMF), binaural, or Ambisonics

6

Track batches and delivery through the API and webhooks

Use Cases

Record Label Catalogs

Turn decades of label recordings into immersive versions, from the earliest masters to recent acquisitions.

Anniversary Reissues

Deliver immersive mixes of landmark albums for deluxe editions and anniversary campaigns.

Live Recording Revival

Place instruments and audience ambience around the listener to recreate the feeling of being at a historic show.

Publisher & Library Music

Offer immersive versions of library tracks for film, TV, advertising, and games that ask for them.

Music Videos on YouTube

Pair classic music videos with Eclipsa Audio versions, which YouTube accepts for upload.

Catalog Acquisitions

Add an immersive edition to newly acquired catalogs as part of their relaunch.

What's available now

One platform for music and video

Upload your song or video and get a finished immersive version back. Our AI separates every source, GravityLLM places each one in 3D, and our agents deliver a ready-to-publish file.

Available now

Music

Bring a finished stereo song or your stems — recorded, produced, or AI-created. Instruments are isolated automatically and placed around the listener. Free to start, Pro $29/mo, Studio $149/mo.

Early access

Video

Turn your video's soundtrack into an immersive experience. Score, dialogue, and effects are placed around the viewer, with Spatial9 handling production from upload to delivery. We're onboarding creators by invite.

Deliverables

Immersive exports include ADM, Eclipsa Audio (IAMF), binaural for headphones, and Ambisonics. Available formats depend on your plan.

Compare plans
Free

ADM to Eclipsa Audio converter

Reuse a Dolby Atmos ADM master (WAV or BWF, up to 4 GB) and get a third-order Ambisonics Eclipsa Audio file, verified by our Intent Fidelity Score. No watermark, no remix.

Running a catalog or platform? Submit in batches and integrate through our API and webhooks.

Ready to Get Started?

Join creators worldwide who are transforming their content with spatial audio.