# jackaudio/jack2

jack2 codebase

Repository: https://github.com/jackaudio/jack2
Canonical: https://ross.abutalabs.com/products/jack2
Language: C++
License: GPL-2.0
License Family: copyleft
Last push: 2026-01-07T21:37:45+00:00

## Health v2 (maintenance only)
Score: 50/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 61, release rhythm 8, longevity 100
- inputs: {"age_days": 5326, "days_push": 238, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2444, forks 396 (observed 2026-08-28T04:06:52.582005+00:00)

## What it is
JACK2 (jackdmp) is a C++ implementation of the JACK low-latency audio server for multi-processor machines. It replaces the JACK1 core with a data-flow client activation model and lock-free graph access for glitch-free, parallel audio processing.

## Use cases
- run a low-latency audio server for pro audio on linux
- route audio between multiple applications with sample-accurate timing
- connect midi and audio applications in a real-time graph
- reduce audio glitches on multi-core machines during recording
- build daw-style audio pipelines with parallel client processing

## When to choose
- you need low-latency, real-time audio routing between applications
- you run a multi-core system and want parallel client execution
- you need glitch-free connect/disconnect while audio streams
- you use linux pro-audio tools that depend on JACK

## When to avoid
- you only need simple desktop audio playback
- you prefer PulseAudio/PipeWire-only setups without JACK compatibility needs
- you need a library rather than an audio server daemon

## Facets
- artifact type: service
- maturity: active
- function: audio-processing
- domain: media, operating-systems
- platform: windows, cross-platform
- tags: low-latency, audio-server, jack, realtime, pro-audio, audio, linux, macos

## Member repositories
- jackaudio/jack2 (main) score 50

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:52.582005+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 2026-08-30T02:30:34.558345+00:00, confidence not recorded.
  - readme: https://github.com/jackaudio/jack2 (fetched 2026-08-28T04:06:52.582005+00:00, sha b9dd5ed51ad4)
- Data as of 2026-08-30T08:39:29.467469+00:00.