Arbhar

SampleStack supported

Instruō

A granular audio processor with six banks of six layers loaded from USB.

Format

Eurorack, 18 HP

Sample Rate

48 kHz preferred (others converted on load)

Bit Depth

24-bit preferred

Channels

Mono or Stereo

File Formats

WAV

Storage

USB flash drive (4 GB drive and USB expander included)

Specifications

Depth 42 mm
Power 210 mA (+12V), 30 mA (-12V)

Features

  • Up to 88 stereo grains across two granular engines
  • Six banks × six layers (36 sample slots)
  • ~10 second audio buffer per layer
  • 1V/oct pitch tracking and onset detection
  • Scenes save full module state with audio to USB

Folder Structure

USB Drive Root/
├── _arbhar_library/
│   ├── 1_1_sample/     (Bank 1, Layer 1)
│   │   └── sample.wav
│   ├── 1_2_sample/
│   ├── ...
│   └── 6_6_sample/     (36 layer folders total)
├── _arbhar_scenes/
│   └── 1_1_scene/      (6 WAVs + preset.txt per scene)
└── _updater/           (firmware updates)

Notes

  • Samples live in /_arbhar_library/ inside folders named bank_layer_sample (e.g. 1_1_sample)
  • 6 banks × 6 layers = 36 layer folders maximum
  • Each layer loads the first file up to ~13 seconds, or multiple shorter files up to ~10 seconds total
  • 48 kHz / 24-bit WAV is the V2 native format; other rates are converted as they load
  • Scenes (full module state plus audio) are stored in /_arbhar_scenes/

Preparing samples for the Arbhar

The Instruō arbhar captures and layers grains, and its library lives in a /_arbhar_library/ folder with a specific naming scheme: each folder is named bank_layer_sample, giving up to six banks of six layers. The V2 native format is 48 kHz, 24-bit WAV; other rates convert as they load.

A layer loads either one file up to about thirteen seconds or several shorter files totaling around ten seconds, so plan the material per layer rather than per file. SampleStack converts to the native format and writes the bank_layer_sample folder names, so a set drops into the arbhar library ready to scan.

Links

Frequently Asked Questions

How do I load my own samples onto the Arbhar?

Put WAV files on the USB drive inside /_arbhar_library/, using folders named for each bank and layer: 1_1_sample for bank 1 layer 1, up to 6_6_sample. Each layer holds about 10-13 seconds of audio. SampleStack creates this structure for you and validates the folder names.

What sample format does the Arbhar V2 prefer?

48 kHz / 24-bit WAV, mono or stereo. The module accepts and converts other sample rates when loading, but native-format files load fastest and avoid conversion artifacts. SampleStack's Arbhar profile converts samples to 48 kHz / 24-bit automatically.

Can I prepare Arbhar libraries on a Mac?

Yes. SampleStack includes an Arbhar profile that builds the /_arbhar_library/ bank/layer folder structure, validates layer folder naming, flags samples that exceed the ~13 second layer limit, and converts audio to the native 48 kHz / 24-bit format.

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