Release

Orbit Pro Beta 1.4.0 build (550) — IAMF Refinements & Esfera Alpha Goes Live

A fresh Pro beta with real improvements to our IAMF exporter, plus the public alpha of Esfera — our browser-based spatial audio platform.

1 May 2026 3 min read

Two things to share today: a fresh beta build with some real improvements to our IAMF exporter, and the public alpha of Esfera — our browser-based spatial audio platform.

Orbit Pro Beta 1.4.0 build (550) — What’s New

This one’s Pro-only. If you’re on the beta, the update should be waiting for you.

Improvements

IAMF Exporter refinements. You can now render scene-based elements alongside channel-based, which means proper fold-down handling for mixed-element programmes. This was the big one we wanted to land before the next phase of beta testing.
Bug fix: 28-element IAMF files were being rejected at export despite being fully spec-compliant. Fixed.
Failure Export window now stays put until you dismiss it manually — no more disappearing error messages before you’ve had a chance to read them.

Known Issues

Volume for scene-based elements in export is currently too loud. We’re aware and working on it.

Upcoming

Volume tweaking controls in the export dialog (addressing the above).

More improvements are landing regularly — and that’s a good moment to say something we mean genuinely: your feedback shapes these apps. Sound, UI, UX, workflow friction, feature requests, “this one button annoys me” — none of it is too small. We want the Orbit family to be some of the best tools out there for QC, delivery, playback and everything else in spatial audio, and the community around it is what gets us there.

Drop anything and everything in the feedback portal: orbitspatial.io/account/feedback

Esfera Alpha — Spatial Audio in Any Browser

Today we’re opening the alpha demo of Esfera.

Esfera plays IAMF in any browser. Including Safari on iPhone. As far as we know, it’s a first. No app, no specific device — just a browser and headphones.

The Esfera web player streaming a 28-channel IAMF Base-Enhanced demo track over Opus, showing the waveform, track metadata, and demo-track tabs

Esfera isn’t folding anything down. OrbitCore renders through a virtual 7.1.4 studio — the same approach as Apple Spatial Audio — which is what makes it one of the best-sounding binaural experiences out there rather than a compromise.

It also plays uncompressed ADM if your connection can handle it. That side is best experienced on a desktop browser.

This is the alpha. There are rough edges. But the core technology — our OrbitCore WASM rendering engine running directly in the browser — is doing exactly what it’s meant to do, and we’d love for you to go listen.

Head to esfera.audio and try it.

A Quick Note on Orbit Lite

We’ve had a lot of questions about IAMF in Lite, so here’s where we’re at: IAMF playback is coming to Orbit Lite. We’re not cutting corners on it.

The challenge we’re working through is making sure Lite shows you all the information you need for IAMF content while keeping the streamlined, focused experience that makes Lite, well, Lite. So it’s taking a bit longer than a straight port would, but the result will be worth the wait.