# eiz/SynchronousAudioRouter

Low latency application audio routing for Windows

Repository: https://github.com/eiz/SynchronousAudioRouter
Canonical: https://ross.abutalabs.com/products/synchronousaudiorouter
Homepage: http://sar.audio/
Language: C++
License: GPL-3.0
License Family: copyleft
Last push: 2024-05-15T09:11:39+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4035, "days_push": 840, "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 1190, forks 142 (observed 2026-08-28T04:03:55.995694+00:00)

## What it is
Synchronous Audio Router is a Windows audio driver that routes application audio through digital audio workstation (DAW) software via a multichannel ASIO interface. It synchronizes virtual audio streams to a physical audio interface to eliminate clock drift and achieve low latency.

## Use cases
- route application audio through a DAW like REAPER
- create custom-named Windows audio endpoints for each app
- per-app audio device override with regex rules
- avoid clock drift and buffer underruns in virtual audio routing
- achieve 1-2ms low latency audio routing on a USB interface
- route all Steam games to a specific audio endpoint

## When to choose
- you use a DAW and want flexible per-application audio routing on Windows
- you need many custom-named virtual audio devices
- you need low-latency routing synchronized to your hardware interface

## When to avoid
- you need Secure Boot enabled on Windows 10
- you don't have an ASIO-capable audio interface or DAW software
- you want a standalone mixer without a DAW

## Facets
- artifact type: application
- maturity: active
- function: audio-processing, gui
- domain: media, windows
- platform: windows
- tags: audio-routing, virtual-audio-cable, asio, daw, kernel-driver, low-latency, audio

## Member repositories
- eiz/SynchronousAudioRouter (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:55.995694+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 2026-08-30T06:23:01.729793+00:00, confidence not recorded.
  - readme: https://github.com/eiz/SynchronousAudioRouter (fetched 2026-08-28T04:03:55.995694+00:00, sha ca5c604af135)
- Data as of 2026-08-30T08:39:29.467469+00:00.