# bitfieldaudio/OTTO

Sampler, Sequencer, Multi-engine synth and effects - in a box! [WIP]

Repository: https://github.com/bitfieldaudio/OTTO
Canonical: https://ross.abutalabs.com/products/bitfieldaudio-otto
Homepage: https://bitfieldaudio.com
Language: C++
License: NOASSERTION
License Family: other
Topics: audio, raspberry-pi, ui-design, synthesizer, synth, audio-processing, music, sequencing
Last push: 2023-01-23T08:31:10+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3480, "days_push": 1318, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2738, forks 150 (observed 2026-08-28T04:07:16.377035+00:00)

## What it is
OTTO is an open-source digital hardware synthesizer, groovebox, and effects processor built for Raspberry Pi. It combines a sampler, sequencer, multi-engine synth, and effects with a custom UI in a standalone hardware box.

## Use cases
- build your own hardware groovebox
- run a sampler and sequencer on a Raspberry Pi
- create a DIY hardware synthesizer
- process audio with multi-engine effects in a standalone device
- make electronic music with an open-source synth box

## When to choose
- you want to build a custom hardware music device on Raspberry Pi
- you need an open-source alternative to commercial grooveboxes
- you want to hack or extend a synth/sampler/FX platform in C++

## When to avoid
- you need a polished, production-ready instrument out of the box
- you want a pure software plugin (VST/AU) rather than hardware
- you are not comfortable assembling and flashing your own hardware

## Facets
- artifact type: application
- maturity: experimental
- function: audio-processing, gui
- domain: hardware, audio
- platform: embedded, cpp
- tags: synthesizer, groovebox, sampler, sequencer, raspberry-pi, digital-audio-hardware, effects-processor, audio, linux

## Member repositories
- bitfieldaudio/OTTO (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:16.377035+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T08:19:13.172433+00:00, confidence not recorded.
  - readme: https://github.com/bitfieldaudio/OTTO (fetched 2026-08-28T04:07:16.377035+00:00, sha 170ea4ff243b)
- Data as of 2026-08-30T08:39:29.467469+00:00.