8D Spatial Audio
Move any track in a circle around the listener using true binaural panning.
Why It Only Works On Headphones
So-called 8D audio is a track that appears to move around your head. There is nothing eight-dimensional about it: the sound is placed on a circle around the listener and moved continuously, using the differences in timing, level and frequency that the ears actually use to locate a sound.
That is also why it collapses on speakers. The effect lives entirely in the difference between what each ear hears, and a pair of speakers in a room delivers both channels to both ears. On headphones each ear gets only its own signal, and the illusion holds.
Key features
- True binaural panning — the browser's HRTF panner, which models how a head and ears colour sound by direction.
- Adjustable rotation speed — from a slow drift to an obvious spin.
- Circle width — how far away the source orbits, which changes how dramatic the effect feels.
- Room reverb — a short generated tail, because a sound with no room sounds like it is inside your skull.
- Offline rendering — the export runs faster than real time and is a true stereo WAV.
This tool runs entirely inside your browser using native Web APIs. Your files and text are never uploaded to a server, never logged and never shared with third parties.
How to use: 8D Spatial Audio
- Choose an audio file
MP3, WAV, M4A or OGG. It is decoded in the page. - Put headphones on
Not optional. On speakers the two channels recombine and the effect mostly disappears. - Set the speed and width
Preview as you go. Slower is usually more convincing than faster. - Render and download
The result is a stereo WAV with the movement baked in.
Technical specifications
| Processing location | Entirely in your browser — no server round trip |
|---|---|
| Data uploaded | None. Files and text never leave your device |
| Price | Free — no account, no trial, no usage cap |
| Category | Audio |
| Works offline | Yes, once the page has loaded |
| Browser support | Chrome 90+, Edge 90+, Firefox 90+, Safari 15+ |
| Interface languages | English, 中文, हिन्दी, Español, العربية |
Frequently asked questions
Why does it sound flat on my speakers?
Because both of your ears hear both speakers. Binaural audio works by giving each ear a different signal — the whole effect is the difference between them — and speakers in a room mix those signals together in the air before they reach you. There is no way around it short of headphones.
Which tracks work best?
Sparse ones. A single voice, an acoustic guitar or a simple loop moves convincingly because the ear can follow one source. A dense mix already fills the stereo field, so rotating it just makes the whole wall of sound wobble.
Why is the exported file so much larger?
Because WAV is uncompressed. A four-minute MP3 of 4 MB becomes roughly 40 MB as a WAV. Nothing is lost — it is the same audio without compression — and you can re-encode it to MP3 or AAC afterwards with no further loss of quality beyond that encode.
Does the effect damage the audio?
It applies a directional filter, which is a real change: a sound behind you genuinely has less high-frequency energy, and the panner reproduces that. So the result is deliberately not identical to the original. Keep your source file; this tool never modifies it.
Why does the rendering take a while?
The HRTF panner does a lot of work per sample, and the whole track is processed at once rather than in real time. It still finishes faster than playing the track through, but a long file will take a noticeable moment on a phone.