EP-PatchStudio
Photon Consulting Limited
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About this app
EP-PatchStudio builds sample kits and multisamples for Teenage Engineering's EP-series samplers, then sends them to your device over USB. It also backs up your projects and lets you manage the samples on your device from your iPhone or iPad. If you own an EP-133 K.O. II, EP-1320 Medieval or EP-40 Riddim, you know the squeeze: great sounds, a tiny screen and a slow road from a sample on your phone to a pad on your sampler. This app is the shortcut. Import audio, trim it, build a kit and load it onto the hardware. CHOP A BREAK INTO HITS Open a drum break and Chop Sample slices it by transients, into equal parts or to a grid. Keep the strongest 8 and they land on the pads, named and ready to play as an EP-40 kit. You can also turn them into a multisample or save them as separate WAV files. Free. ROOM FOR MORE SOUNDS On a K.O. II, Fit More makes a sample mono, lowers the rate and, where the pitch allows it, turns on Double Speed, in one tap. Undo puts it back. Free. WHAT YOU CAN DO • Import WAV and AIFF from Files, iCloud Drive or another app through the share sheet • Trim, fade, loop and tune samples by touch, in one-shot, key or loop mode • Create multisamples for the EP-40 Riddim, mapped across the keyboard • Normalise, trim and rename a whole batch of samples in one pass • Browse, preview and replace the samples on your device in the File Manager • Back up your device and keep every backup in a library you can restore from • Open a project to see its pads and patterns on a timeline, then export MIDI, stems or an Ableton Live set WORKS WITH • EP-133 K.O. II • EP-1320 Medieval • EP-40 Riddim Multisamples are for the EP-40 Riddim. No hardware to hand? You can still build and edit, then send it over when you plug in. FREE AND PRO The Sample Editor, Chop Sample, Fit More and Trim Silence All are free, with no ads and no account. Connecting your EP and checking its storage are free too. Pro adds sending to your device, the File Manager, the Batch Processor, backups, the Project Viewer and the Project Library. On Free you can open every screen and look around, and the lock sits on the Pro actions. Every Pro tool is open for 14 days after you install, with no sign-up. After that, Pro is a one-off in-app purchase. Buy once, no subscription. Already bought EP-PatchStudio on Mac or Windows? Enter your licence key to unlock the same here. A NOTE FROM ME I'm a solo developer and a sampler nerd. I built EP-PatchStudio because I wanted grown-up software for these little machines, and I keep improving it based on what the community asks for. If something is missing or broken, tell me. Not affiliated with or endorsed by Teenage Engineering AB. EP-133 K.O. II, EP-1320 Medieval and EP-40 Riddim are trademarks of Teenage Engineering AB, used here only to describe compatibility.
What's new
Version 1.8.0 · Nov 9, 2026
Trim Silence All trims the silence from every sample in a multisample or kit in one go, and markers and loops move with the audio. It's free. Everything you make can now leave the app. Save several projects or backups at once, save copies of a whole sample pack, export WAV files and save copies out of the Recycle Bin. Each save ends with one message, and an export never writes over a file that's already there. Editing on a phone is quicker. The main sample settings sit in one row, Play Keys opens as a sheet and Save and Send stay at the bottom. Double Speed samples now play at the pitch you set on the EP-40 and EP-1320, and One Shot multisamples play through on the EP-40. Safer: every restore, push and upload checks your EP has room first. The app remembers the zones of the multisamples it sends, and pushing over a project offers to back it up first. Big deletes show their progress, and you can stop part way. On Free you can open every screen and look around. The lock sits on the Pro actions. No file to hand? Try a Demo Sound loads a keys sample into the Sample Editor. Plus a new icon, Move To Slot for a whole selection, Chop fades on every slice and smaller fixes.
In-app purchases
The most popular purchases on the App Store.
- Tip: CoffeeConsumable6,00 €
- Tip: LunchConsumable10,00 €
- Tip: DinnerConsumable22,00 €
- EP-PatchStudio ProConsumable29,00 €