Generative spatial audio for music and video

Spatial9 is an AI platform that turns stereo music, stems and video into immersive spatial audio. It produces Eclipsa Audio (IAMF) for YouTube, Dolby Atmos ADM BWF for Apple Music, Amazon Music and Tidal, plus binaural and Ambisonics files, without the user needing mixing experience.

Try Spatial9 free · See pricing · Listen to demos

Key facts

  • Input: finished stereo songs, instrument stems (optional) or finished videos. Accepted audio files: WAV, MP3, FLAC and AIFF.
  • Output: Eclipsa Audio / IAMF (YouTube), Dolby Atmos ADM BWF and ADM XML (Apple Music, Amazon Music, Tidal), binaural WAV and MP4, Ambisonics HOA, and MPEG-H on Studio plans.
  • Speed: a typical 3-minute song is processed in 2 to 5 minutes.
  • Engine: Gravity LLM places every instrument in 3D space; 1,296 BPM-synced spatial movements; lyric- and section-aware effects; Niner, a conversational AI mixer.
  • Free tools: a free Music plan (preview and share) and a free ADM-to-Eclipsa converter (ADM WAV or BWF up to 4 GB, no watermark, free account required).
  • Pricing: Music plans from $0, $29 and $149 per month; Video plans from $14, $79 and $149 per month; Creator Bundle $99 per month; Enterprise on request.
  • Developers: a REST API (Spatializer API) with resumable uploads that returns Dolby Atmos and IAMF deliverables.

How Spatial9 Works

  1. Upload Your Audio. Submit your stereo tracks for YouTube (Eclipsa Audio) or instrument stems for Apple Music, Amazon Music, and Tidal (ADM BWF format). Our platform handles all format requirements automatically.
  2. AI Processing. Our proprietary AI analyzes your music, detecting instruments, genre, and emotional context. It then applies professional spatial positioning based on thousands of reference mixes.
  3. Download & Release. Receive broadcast-quality spatial audio files ready for distribution to all major streaming platforms. Full compliance with Apple Music, YouTube, Amazon Music, and Tidal guidelines.

Free ADM to Eclipsa Audio converter

  • Converts an ADM master (WAV or BWF, up to 4 GB) from a Dolby Atmos workflow into Eclipsa Audio (IAMF). No remix, DAW, plugin or command line needed.
  • Rebuilds the mix as a 16-channel third-order Ambisonics sound field instead of folding objects into a fixed speaker layout, so sounds stay sharp and correctly placed on headphones and speakers.
  • Reports an Intent Fidelity Score (patent pending) that measures how faithfully the Eclipsa Audio scene keeps the spatial intent of the original master.
  • Keeps the source PCM audio without unnecessary lossy re-encoding. Downloads as .iamf or muxed .mp4, or publishes directly to YouTube.
  • Free, with no watermark. A free Spatial9 account is required.

Pricing at a glance

Pricing: Music plans from $0, $29 and $149 per month; Video plans from $14, $79 and $149 per month; Creator Bundle $99 per month; Enterprise on request.

Compare all plans

Frequently asked questions

Can I start with a finished song or video?

Yes. Bring a completed stereo song or a finished video and Spatial9 produces an immersive version from it. Original stems help but are not required.

Do I need stems or audio engineering experience?

No. If you have stems you can supply them, but Spatial9 can separate an existing mix. You do not need to operate a mixer or position sources yourself.

What files will I receive?

Supported deliverables depend on your plan and include immersive export formats such as ADM, Eclipsa Audio, binaural, and Ambisonics. See the pricing page for exact formats per plan.

How do Music and Video workflows differ?

Music is available now. Video production is in early access—you can request an invite and we will bring you on as it opens up.

Can I automate a catalog or integrate Spatial9?

Yes. Teams can submit in batches, track job status, and integrate through our API and webhooks. Talk to us about production at scale.

What is included in the free ADM-to-Eclipsa converter?

You can convert an ADM master (WAV or BWF, up to 4 GB) to Eclipsa Audio at no cost and with no watermark. A free account is required.

What is Spatial9?

Spatial9 is an AI-powered platform that transforms stereo audio into professional-quality immersive spatial audio for streaming platforms like Apple Music, YouTube, Amazon Music, and Tidal.

How long does processing take?

Processing time varies based on file length and complexity. Typically, a 3-minute song takes 2-5 minutes to process. You'll receive an email notification when your file is ready.

What formats are supported?

We support WAV, MP3, FLAC, and AIFF for input. Exports include ADM BWF (for Apple Music, Amazon, Tidal), Eclipsa Audio (for YouTube), and standard stereo formats.