Pi UpMix
Stereo becomes a space.
Transparent upmixing from stereo to surround and immersive layouts, with a downmix-safe engine that folds back to your original mix.
Your stereo mix already holds a room. Pi UpMix opens the doors.
What it does.
See every speaker
A full speaker map from L, C, R to side, rear and height channels. Click a speaker to solo it, right-click to mute.
Front, surround, height
Dedicated controls for centre and centre width, wides, surround amount and side-to-rear balance, height amount and front-to-rear, with delay and diffusion.
Downmix lock
Keep the fold-down matched to the original stereo, so the upmix never breaks the version most people will hear.
Optional stem separation
Work as a classic upmixer, or switch on stem separation to place vocals, drums and instruments individually.
Binaural monitoring
No immersive room? Monitor the full layout on headphones with binaural rendering.
A/B, presets, render
Compare two settings instantly, save presets, and render the upmix straight to a file.
Immersive deliverables from stereo masters.
Catalogue releases, live recordings, film and broadcast: Pi UpMix turns finished stereo into convincing surround and height without phasey artefacts, while the downmix lock protects the original.
Fill the room, not just the stage.
Feed surround and overhead speakers in clubs, theatres and installations from a stereo playback or a console bus, in real time.
The details.
| Current version | 1.1.0 |
|---|---|
| Formats | AAX, VST3, AU |
| Input | Mono or stereo |
| Output layouts | Surround and immersive up to 7.1.4, plus binaural headphones |
| Sections | Front, surround, height, LFE and output |
| Downmix | Fold-down match with downmix lock |
| Stems | Optional stem separation |
| Workflow | A/B compare, presets, render to file |
What you need.
macOS
| MINIMUM | RECOMMENDED | |
|---|---|---|
| OS | macOS 11 Big Sur | Latest macOS |
| Processor | Apple silicon or Intel (Universal) | Apple M1 or better |
| Memory | 8 GB | 16 GB (stem separation) |
| Disk | 100 MB | 100 MB |
| Host | AAX, VST3 or AU host | Pro Tools Ultimate or any immersive-capable DAW |
| Monitoring | Headphones (binaural) | Speakers up to 7.1.4 |
Windows
| MINIMUM | RECOMMENDED | |
|---|---|---|
| OS | Windows 10 64-bit | Windows 11 64-bit |
| Processor | Intel / AMD, 64-bit, 4 cores | Intel Core i7 / AMD Ryzen 7 |
| Memory | 8 GB | 16 GB (stem separation) |
| Disk | 100 MB | 100 MB |
| Host | AAX or VST3 host | Pro Tools Ultimate or any immersive-capable DAW |
| Monitoring | Headphones (binaural) | Speakers up to 7.1.4 |
Works with.
Based on the product’s formats and audio I/O. Tested-host lists grow with every release.
OPERATING SYSTEM
- macOS 11 or laterSupported
- Apple siliconNative
- Windows 10 / 11 (64-bit)Supported
- LinuxNot supported
DAWS & HOSTS
- Pro Tools (incl. Ultimate)AAX
- Logic ProAU
- Ableton LiveVST3 / AU
- Cubase / NuendoVST3
- ReaperVST3 / AU
- Studio OneVST3 / AU
- Bitwig StudioVST3
- Pi LiveVST3 / AU
OUTPUT LAYOUTS
- Stereo / binauralSupported
- 5.1 / 7.1Supported
- 7.1.4Supported
- Larger immersive layoutsAsk support
From stereo to 7.1.4 in five minutes
Questions.
Will it change my stereo mix?
No. With downmix lock on, the folded-down result stays matched to your original stereo.
Is this a subscription?
No. Buy once and own it, with free updates and no hidden costs.
How many computers can I use?
One licence activates one computer. Changing machines? Deactivate it in the app or in your account, then activate the new one.
Is there a free trial?
Yes. Download the full version and try every feature free for 15 days.
Pi UpMix.
Your move.
Buy once · free updates · no hidden costs · instant download · activate in seconds.
AAX is a trademark of Avid Technology, Inc. VST is a registered trademark of Steinberg Media Technologies GmbH. Audio Units is a trademark of Apple Inc.