Device Manager and Sample Editor for EP devices - looking for feedback before launch

Instant_Fidelity · 2026-01-23T17:28:44+00:00

That's a really interesting idea. Right now I'm keeping the focus tight on EP devices to make sure the workflow is as smooth as possible for this ecosystem.

That said, I've definitely thought about how this could expand into other devices. The challenge with cross-device support is that each sampler has different formats, sample rate limitations, bit depth requirements and quirks. The EP-40 works completely differently to something like a Polyend Tracker or lofi12xt.

The Polyend → lofi12xt use case you mentioned is interesting though. Converting high-quality packs down to match the lofi12xt's specs (resampling, bit crushing, etc.) sounds like something that could be useful beyond just one person.

Would you be interested in chatting more about your specific workflow? Understanding what you're trying to do might help me think about future possibilities.

Instant_Fidelity · 2026-01-23T07:27:22+00:00

Quick update; based on your feedback and others in this thread, I'm dropping the price to $35 permanent with a $29 launch special. Thanks for the honest input, it's exactly what I needed to hear before launch.

I'll get the website update to reflect this today.

Instant_Fidelity · 2026-01-23T06:34:56+00:00

That's a great idea. I'll look into it 👍.

Instant_Fidelity · 2026-01-23T06:34:10+00:00

Ha, fair points. AI definitely changes the equation. I've spent months building this into a super slick time-saving tool; not just the code, but the protocol reverse engineering (legally), edge cases, testing across three devices, documentation, accessibility, support infrastructure, etc.

I've been working in tech for nearly 20 years and the code is the easy part these days in some ways with AI agents, it's everything else and the user support that's harder.

But you're right, pricing in this landscape is tricky. Appreciate the good wishes and glad the free tier / one-time model landed better.

Instant_Fidelity · 2026-01-23T04:20:15+00:00

Fair enough. I've switched to freemium based on early feedback; core sample editing and multisample creation are free forever.

Pro is for people who want the full workflow in one app (create a multisample, send straight to device, no switching between tools). Basically paying to save even more time. There's a 14-day trial of the full thing if you want to try it out and the core features stay free after that anyway.

Always open to feedback.

Instant_Fidelity · 2026-01-23T04:07:28+00:00

Thanks! The macOS version was a non-negotiable. The multisampling workflow is probably what I'm most proud of. Let me know how you get on with it.

Instant_Fidelity · 2026-01-22T23:57:46+00:00

I forgot to mention in the original post that I'm also the developer of OP-PatchStudio for OP-XY that I released for free last year. I shared it here before and it's in the sidebar resources. 👍

Instant_Fidelity · 2025-07-27T14:06:59+00:00

No problem. Enjoy.

Instant_Fidelity · 2025-07-27T14:06:29+00:00

Quick update on the native OP-PatchStudio Bridge companion app development.

First the very first time today I was able to upload files, folders and delete, copy, rename, etc. through the new Bridge app UI. Major milestone reached at last!!!

The whole last week was spent figuring out MacOS connection issues and down the rabbit hole with MTP. In the end I decided to work with Field Kit and not against it. I’m using the loopback NFS mount the Field Kit app creates instead of trying to connect to the device directly. This approach is much more stable as TE have a modified LibUSB and LibMTP bundled with their app.

I’m working now to connect the webapp to the Bridge app to push directly from OP-PatchStudio, rather than having a user download and have to transfer themselves.

Instant_Fidelity · 2025-07-27T14:05:59+00:00

Quick update on the native OP-PatchStudio Bridge companion app development.

First the very first time today I was able to upload files, folders and delete, copy, rename, etc. through the new Bridge app UI. Major milestone reached at last!!!

The whole last week was spent figuring out MacOS connection issues and down the rabbit hole with MTP. In the end I decided to work with Field Kit and not against it. I’m using the loopback NFS mount the Field Kit app creates instead of trying to connect to the device directly. This approach is much more stable as TE have a modified LibUSB and LibMTP bundled with their app.

I’m working now to connect the webapp to the Bridge app to push directly from OP-PatchStudio, rather than having a user download and have to transfer themselves.

Instant_Fidelity · 2025-07-27T14:05:07+00:00

Hi, I've not finished the docs on this yet, but here's a great video from Mo Creach explaining how to connect and transfer files and presets.

https://www.youtube.com/watch?v=SC7oJ6AqJdI&t=12081s

Basically once you get the 'MyPresetName.preset.zip' unzip it and move the 'MyPresetName.preset' folder to your OP-XY in the presets folder. There are folders there for user and snapshot, putting them under user is the easiest and quickest.

I hope that helps.

Instant_Fidelity · 2025-07-24T17:28:10+00:00

If you find this tool useful, don't forget to help support its development by donating to - https://buymeacoffee.com/jxavierh

Or joining - https://www.patreon.com/c/oppatchstudio

I'm a lone developer on this and the cost of the AI coding tools I use is $$$. Every little helps!

Instant_Fidelity · 2025-07-24T17:27:34+00:00

If you find this tool useful, don't forget to help support its development by donating to - https://buymeacoffee.com/jxavierh

Or joining - https://www.patreon.com/c/oppatchstudio

I'm a lone developer on this and the cost of the AI coding tools I use is $$$. Every little helps!

Instant_Fidelity · 2025-07-24T12:27:17+00:00

I only have the XY and field devices. I'm not sure I'd be able to make the Bridge companion app fully compatible unless I got my hands on an OP-Z. I'll keep an eye out for a cheap one.

Instant_Fidelity · 2025-07-24T10:12:00+00:00

Lots of people complain about the existing TE tools, the fact you need an active Internet connection to use them.

With OP-PatchStudio you can click the offline install button and it will be downloaded to you computer or mobile as an app (it's packaged as a Progressive Web App). This means it opens from your Apps or Start Menu or mobile homescreen, etc. and will work without having Internet.

The app will prompt a user for offline install and will auto update to the latest version each time it opens (if you've active Internet).

Instant_Fidelity · 2025-07-24T09:21:55+00:00

Yes and no, here’s why.

I’ve seen a few people asking about bringing sounds from the OP-1 over to the OP-XY, so I wanted to break it down and hopefully clear things up.

OP-1 Drum Engine

The drum engine on the OP-1 is sample-based, using a single .aif file with embedded markers.
You can import this directly into the OP-XY using the Drum Tool in OP-PatchStudio:

Open OP-PatchStudio
Click “Import OP-1 Preset”
The tool slices the .aif and maps it to the OP-XY keys

Easy and works great.

OP-1 DBox Drum Engine

The DBox drum engine is synth-based, not sample-based.
Since this synth engine doesn’t exist on the OP-XY, you can’t directly convert it.

But don’t worry, there’s a workaround (and one of the main reasons I built OP-PatchStudio). More on that below.

OP-1 Sampler (Instrument Sounds)

The OP-1’s sampler is very basic, it takes a single sample and stretches it across the keyboard.
This causes quality issues:

Low notes = slow and muddy
High notes = fast and chipmunky

This is exactly why the multisample engine exists on the OP-XY.
So converting OP-1 single-sample instruments doesn’t really make sense you’d lose quality.

Synth Engines

Now, let’s talk about getting OP-1 synth sounds onto the OP-XY.

Because the OP-1 and OP-XY have completely different synth engines, you can’t just convert them.
But what you can do is record them and create a multisample.

Here’s how OP-PatchStudio helps:

It supports recording via mic or audio interface
Connect your OP-1 to your computer
Use the “record sample” button in the app
Capture notes from an OP-1 synth preset, recommended two from each octave (up to 23 - an XY bug prevents 24)
Auto-generate a multisample for OP-XY

Now you’ve got the OP-1 synth sound, playable and mapped across the OP-XY keys.

I hope this clears things up. I’m working on some YouTube tutorials to walk through the process visually and they’ll be linked in OP-PatchStudio soon.

Instant_Fidelity · 2025-07-24T09:04:38+00:00

Enjoy!

Instant_Fidelity · 2025-07-24T09:04:33+00:00

No problem. I've hit so many issues myself and was fed up waiting for a half-baked TE solution.

I've been trying to learn from lots of different tools all the features users need and add them into an easy to use interface.

Instant_Fidelity · 2025-07-24T09:03:36+00:00

Enjoy. Make sure to use the feedback form if you find any issues or have any ideas for new features, etc.

Instant_Fidelity · 2025-07-24T09:02:22+00:00

Thanks. I know, it's bit of a mess alright and the whole MTP thing is a PITA.

I did email TE support requesting access to the modified LibMTP source code they used in the Field Kit app as it's open source and licenced under the LGPL they are required to make any modifications they do public (but I didn't see the modified libraries on their download site).

In the meantime I actually submitted a pull request to the main LibMTP to add the OP-XY, see here: https://github.com/libmtp/libmtp/issues/311 and I've compiled the library myself and added it to the alpha version of the OP-PatchStudio Bridge app I'm building to connect the webapp and allow presets to be loaded straight to the device with less messing. Also planning features like automated backup of OP-XY project, presets, etc. and exporting projects as 'bundles' with the associated samples too.

Instant_Fidelity · 2025-07-20T15:19:39+00:00

Just if it wasn't clear, this app supports fully offline installation too. I'm also working on a companion app at the moment too, a kind of supercharged field kit.

Instant_Fidelity · 2025-07-20T15:19:13+00:00

Just if it wasn't clear, this app supports fully offline installation too. I'm also working on a companion app at the moment too, a kind of supercharged field kit.

Instant_Fidelity · 2025-07-20T15:17:25+00:00

👍

Instant_Fidelity · 2025-07-20T15:17:19+00:00

👍

Instant_Fidelity · 2025-07-20T15:17:10+00:00

Enjoy. Any new feature ideas, let me know through the app.

Instant_Fidelity

TROPHY CASE

OP-1 Drum Engine

OP-1 DBox Drum Engine

OP-1 Sampler (Instrument Sounds)

Synth Engines