[opz][tool] Offline Clone of Drum Utility for Creating OP-Z Drum Samples

VST, AU, AAX, CLAP, etc. Plugin Virtual Instruments Discussion
Post Reply New Topic
RELATED
PRODUCTS

Post

AUTO-ADMIN: Non-MP3, WAV, OGG, SoundCloud, YouTube, Vimeo, Twitter and Facebook links in this post have been protected automatically. Once the member reaches 5 posts the links will function as normal.
Converts the output into an OP-Z-compatible AIF audio fiConvertsle (44.1 kHz, 16-bit, mono) and generates the required OP-Z metadata.

Html app created with Claude:
- https://drive.google.com/file/d/1Frve-t ... rive_link) (https://drive.google.com/file/d/1Frve-tVRdQE_Y09kIsyhOIAQpL9RGz_Z/view?usp=drive_link%29)
- https://codeberg.org/totoetlititi/totoe ... ilder.html (https://codeberg.org/totoetlititi/totoetlititi-drum-utility/src/branch/main/opz-drum-kit-builder.html)

# 01 — Slot Builder

Input:
- A single concatenated audio file
- A text file containing region data exported from Reaper

Features:
- Click any slot to select a file, or drag and drop audio files directly onto individual slots
- Drag a populated slot onto another slot to swap or reorder samples
- Waveform previews are displayed for each populated slot
- Duration and slot-count progress bars, with a warning if the total length exceeds 12 seconds
- Export .aif generates a properly encoded OP-Z sample file (44.1 kHz, 16-bit, mono, padded to 12 seconds, with a 512-byte aligned APPL chunk placed before the SSND chunk)
- Export .json saves the metadata separately for inspection, backup, or version comparison

# 02 — Reaper Regions

Input:

- One audio file per slot

Features:

- Drag and drop your audio files alongside a Reaper `.txt` region export
- Parsed regions are displayed in a table, including a preview of the calculated OP-Z start values
- Uses the same export pipeline as Tool 1

Post Reply

Return to “Instruments”