Hi everyone,
I’ve been working on a Multisample & Drum Kit tool for the OP-XY for quite a while now.
I know there are already two great tools out there – one by buba447 and another by @Instant_Fidelity – and both are excellent in their own way.
That said, I’ve taken a different approach and focused on priorities that mattered to me personally.
For the Multisample Tool , it was important to me that it could import AIFF (or WAV) files directly from Logic , including reading metadata embedded in the file header chunks – such as loop start/end points and root note information .
Additionally, I wanted users to have basic control over the sound, so you can set amp and filter envelopes, adjust the filter, and play samples live using your computer keyboard (PC/Mac) for quick and intuitive testing.
For the Drum Kit Constructor , my focus was on automation and efficient kit building .
You can easily browse and select samples from a larger library and quickly fill kit slots.
To get an immediate feel for the kit layout, it’s also possible – in Chrome only – to play the drum slots live via a MIDI keyboard or the OP-XY itself, directly in the browser.
Here are the tools:
op-xy-drum-constructor:
https://op-xy-kit-constructor.netlify.app
Create Your Own Drum Kits for the OP-XY
- Upload your drum sample library(Tested with 800+ samples – works, but performance may lag with large libraries)
- Drag and drop samplesfrom your library into kit slots, or rearrange samples between slots via drag & drop
- Autofill kit (alpha) Automatically fills slots if your samples follow naming conventions like kick, snare, etc. – functional but rough alpha version
- Trim silence *(optional)*Automatically cuts silence from the beginning and end of your samples
- Name your slots Add custom names for better organization
- Preview samples per slot Quickly listen to individual samples before assigning
Play drums via MIDI (Chrome only – beta)*Trigger slot samples using a MIDI device or the OP-XY itself.
MIDI support is currently not available in Safari or Firefox. When using OP-XY: make sure to route MIDI through a MIDI track. - Cut Wizard Record directly from hardware drum machines or load an audio file containing multiple samples with pauses in between. Automatically detects slices and you can map them to drum slots.
- Normalize all samples *(optional)*Ensures consistent volume across your kit
- Save as OP-XY–ready drum presetExport your custom kit in a format ready to use with the OP-XY
op-xy-multisample-architect:
https://op-xy-multisample-architect.netlify.app
Create multisample presets for the OP-XY
- Import WAV or AIFF with loop & key metadata
- Auto-name presets based on sample file names
- Batch rename all samples
- Auto-cut after loop end
- Normalize sample volumes
- Convert sample rates (48/24, 44.1/16, 22/16, 11/16 kHz/bit)
- Set visual amp & filter envelopes (ADSR)
- Preview mapped samples via Mac/PC keyboard
- Load patch.json defaults (ADSR & filter only)
- Save as OP-XY–ready multisample preset
Feel free to test, break, and send feedback!