Put the soundall around the listener —and move it.
The immersion stereo can’t reach — in a single browser tab. Monitor in binaural; export 5.1 / 7.1.4 / 9.1.6 / 22.2, ADM / BW64, and ambisonics.

One place, two crafts.
Bring the listener inside the music.
Voice in front, strings overhead, reverb behind. Move by hand while it plays and the sound travels with your phrasing. No expertise required.
Your deliverables, the short way.
Beds from 5.1 to 22.2, ADM/BW64 with object motion, ambisonics for VR, binaural — all in-browser. Exports are 24-bit; ADM and ambisonics are a first release, so please verify ingest in your own toolchain.
Perform the space, don’t program it.
Instead of typing numbers or drawing curves, move a source by hand while it plays — that motion becomes the keyframes. Presets (orbit CW/CCW, sweep, spiral, approach, flyby), smooth interpolation, and a timeline for fine edits. Whatever you record is baked into every export format.


Record omni first.Decide the pattern later.
From a two-omni AB stereo recording, synthesize the pickup pattern after the session: omni, wide, cardioid, hypercardioid or figure-8, with reversible direction and instant A/B against the original. Like developing a photograph — decide after you record.
Enter the capsule spacing and the room temperature to see the pattern at each frequency. The physics is shown honestly: control has an upper frequency limit, above which the sound blends back to the original.
What you can export
Binaural WAV
For headphones — the motion path is baked in with smooth interpolation.
Surround / immersive beds
5.1, 7.1.4, 9.1.6, 22.2 as multichannel WAV.
ADM / BW64
The professional interchange format (ITU-R BS.2076 / 2088). This is a first release — please verify ingest in your own toolchain.
Object ADM (timed paths)
Each source as an object — its motion travels with the master.
Ambisonics (ambiX)
For VR, 360 video and games — ideal for rotating fields.
Stereo 2.0
Down to everyday stereo, with the space intact.
Three steps
Bring in
Drag in your stems. Auto-placed by role.
Place & move
Drag on the top-down view. Move while it plays — the motion is recorded.
Export
Choose binaural, surround, ADM or ambisonics and download.

Your work stays on your device.
Loading, placing, monitoring and exporting all happen in the browser. Your audio is never sent to a server.
Two ways to get it.
The Concerto plan — every Kuon app including DAR 3D. Cancel anytime.
View plansFor those who want DAR 3D for the long run. One payment; future updates included. Customers outside Japan see local-currency pricing at checkout.
Open the studio to buyIf you buy a Kuon stereo microphone, X-86S or P-86S, DAR 3D comes with it. It opens with the password in your confirmation email, together with ACTOR, FIELD and NORMALIZE.
See the microphonesFAQ
Do I need plugins or an install?
No. Everything runs inside your browser — no software, no plugins.
Can I use it for Dolby Atmos work?
You can export ADM / BW64 with object motion — the professional interchange format that interoperates with Atmos (verify final ingest in your toolchain).
Does it work for VR / 360 video?
Yes — export first-order ambisonics (ambiX, ACN/SN3D).
How do I add motion?
Move a source by hand while it plays and your performance is captured. There are presets (orbit, sweep, spiral, approach, flyby) and a timeline for fine edits.
Are my files uploaded?
No. Loading, placing and exporting all happen on your device; your audio is never sent to a server.
Can I change the pickup pattern after recording with omni mics?
Yes. Directivity development synthesizes omni, wide, cardioid, hypercardioid or figure-8 from a two-omni AB recording, after the fact. Enter the capsule spacing to see the controllable band; above it the sound blends back to the original. Low-frequency correction can raise the noise floor slightly.
Can I use it alongside my DAW?
Yes — bring stems from your DAW and use DAR 3D just for spatial placement and export.
How much is it?
The studio opens with a free account. To produce and export, choose one of two ways: the Concerto plan (¥1,980/month, every Kuon app) or a one-time purchase of DAR 3D (¥29,800, future updates included). Customers outside Japan see local-currency pricing at checkout.
Deliver the music — space and all.
Open KUON DAR 3D二つの入口があります
このアプリだけを買い切るか、Concerto で Kuon のすべてを使うか。どちらでも同じアプリが動きます。
買い切りには、その後のアップデートも含まれます。
日本国外のお客様には、決済画面で現地通貨の価格が表示されます。