In 2019 the launch of the Instruo Arbhar heralded a new generation of granular processing in Eurorack. Sampled audio could be chopped into tiny grains, scattered, shaped, re-pitched, reversed, and layered for an endless range of audio manipulation ranging from seamless frozen tones to mutated acousmatic madness. Each grain sounds with its defined specifications. When modulation is used, the “per-grain parameter” definition allows for true polyphonic layering.

With the introduction of firmware version 2 (2023) comes a complete rewrite of the entire codebase to implement both technical and conceptual improvements that will enhance the entire user experience of arbhar. We have ensured that the overall feel of the module has been preserved as much as possible. Advances in efficiency and expanded features will allow arbhar to explore many more sonic and musical spaces.

Instruo Arbhar Features:
– Up to 88 sounding polyphonic grains between two granular engines
– Mono and stereo input configurations
– Six 10 second individual audio buffers
– 1 volt per octave pitch tracking
– On-board random pitch deviation and grain direction probability
– Scan Mode, Follow Mode, and Wavetable Mode
– Stereo pan, feedback delay, and reverb configurations
– Built-in condenser microphone
– Analogue input preamplifier and limiter
– USB import and export functionality
– Audio analysis with onset detection for automatic audio capturing
– User-definable configuration file for complete instrument customization
– Includes 2 HP passive CV Expansion module, 2 HP Passive USB Expansion module and 4GB USB flash drive

Size:
– 18HP
– Depth: 42mm

Power:
+12V: 250mA
–12V: 30mA