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Copy Sample Slots

Copy Sample Slots manages the 256 sample slots (128 Static, 128 Flex) across projects. It can independently copy sample assignments (file path references + audio files) and sample attributes (Audio Editor settings like gain, BPM, trim points, slices…).

Tools - Copy Sample Slots

Workflow​

  1. Source: The current project's sample slots are used as the source. Use One mode to select a single slot, or Range mode to select a contiguous range (with dual sliders).
  2. Destination: Select the destination slot positions in target project.
  3. Configure Options: Choose slot type, sample assignments, audio file handling, and sample attributes.
  4. Execute: Perform the sample slot copy.
Copy Sample Slots - One mode Copy Sample Slots - Range mode

Configuration Options​

Slot Type​

  • Static + Flex: Copy both Static and Flex slot data.
  • Static Only: Copy only Static slot data; Flex slots are untouched.
  • Flex Only: Copy only Flex slot data; Static slots are untouched.

Sample Assignments​

Controls whether sample path references are copied to the destination slots.

  • Copy: Copy source slot file paths to destination. Show the Audio Files sub-option (see below).
  • Don't Copy: Destination slot paths are left untouched — useful when destination slots already reference valid files and you only want to copy Audio Editor settings.

When Copy is selected, the Audio Files sub-option controls how the underlying audio files are handled:

  • Mirror locations: Mirror source references — files referenced from the Audio Pool keep their ../AUDIO/ path, while project-local files are copied to the destination project's root directory. Only available when both projects are in the same Set (pool references would be invalid otherwise).
  • Copy all to project: Copy all referenced audio files to the destination project's root directory, making the destination self-contained.
  • Move all to Pool: Move project-local audio files to the Set's shared AUDIO/ folder and update slot paths to ../AUDIO/ in both the source and destination projects.
    • Only available when source and destination projects are in the same Set.
    • If a source file is also referenced by the opposite slot type (e.g., a file used by both a Static and Flex slot), the original file is kept to avoid breaking the other reference — the success message reports how many shared files were preserved.
tip

When Copy is selected, a warning badge is displayed if any source audio files are missing on disk.

note

Audio file operations never copy or move .ot sidecar files. .ot files are part of Audio Editor settings, not sample assignments. On Move all to Pool, any .ot files alongside audio files in the project directory are re-integrated into project.work and markers.work before being deleted (the Octatrack ignores .ot files placed in the Audio Pool anyway).

Sample Attributes​

Controls whether Audio Editor (AED) settings are copied to the destination slots.

  • Copy: Copy selected attributes from source to destination. When reading source attributes, .ot sidecar files are used if available (they take priority), with fallback to project.work and markers.work. Attributes are always written to project.work and markers.work only — .ot files are never created.
  • Don't Copy: Destination slot attributes are left untouched — useful when the destination project has its own purposefully configured Audio Editor settings.

When Copy is selected, individual attribute toggle buttons let you select exactly which settings to copy (all are selected by default):

AttributeSource (project file)Source (.ot fallback)
GainGAIN= field.ot gain value
BPM / TempoBPMx24= field.ot tempo ÷ 24
TimestretchTIMESTRETCH= field.ot stretch mode
Loop modeLOOP= field.ot loop_mode
Trig quantizationTRIGQUANTIZATION= field.ot quantization
Trim pointsMarkers file: trim_offset, trim_end.ot trim_start, trim_end
Loop pointMarkers file: loop_point.ot loop_start
SlicesMarkers file: slices, slice_count.ot slices, slices_len

Use None to deselect all, or All to select all attributes.

note

Recording buffers (Flex slots 129–136) are not affected by Copy Sample Slots — only user-selectable slots 1–128 are copied.

note

The Execute button is disabled when both Sample Assignments and Sample Attributes are set to "Don't Copy" (nothing to do).

Slot Mapping​

Each copied slot(s) respects user selection regarding destination slot ID: For example, copying source slot 2 to destination slot 10 results in a slot with slot_id = 10, not the source's original ID.

That's true for both One and Range source selection.

In case selected destination slot does not leave enough room for all selected source slots (Range mode), the warning Some slots will overflow is displayed and the "Execute" button is disabled to prevent an invalid copy. Adjust the source range or the destination start slot to resolve the overflow before executing.

Copy Sample Slots - Range Overflow

Important Notes​

  • Automatic Backup: Before executing, the app automatically backs up project.work, markers.work, and any destination audio files (.wav) that would be overwritten.
    • When using Move all to Pool, the source project's project.work and audio files are also backed up since both are modified.
    • See Quick Start for details.
  • Same Set required for Mirror and Move all to Pool: Both "Mirror locations" and "Move all to Pool" are only available when source and destination projects are in the same Set. If you select a destination project in a different Set, the audio mode auto-switches to "Copy all to project" — the only option that guarantees all files are self-contained in the destination.
  • Shared files on Move all to Pool: If the same audio file is referenced by both a Static slot and a Flex slot, and you copy only one slot type (e.g., Static only), the original file is kept in the source project directory after the move — deleting it would break the Flex slot that still references it. The success message reports how many files were preserved for this reason.