# alumae/kaldi-gstreamer-server

Real-time full-duplex speech recognition server, based on the Kaldi toolkit and the GStreamer framwork.

Repository: https://github.com/alumae/kaldi-gstreamer-server
Canonical: https://ross.abutalabs.com/products/kaldi-gstreamer-server
Language: Python
License: BSD-2-Clause
License Family: permissive
Topics: speech-recognition
Last push: 2024-06-08T11:29:50+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": 4622, "days_push": 816, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1093, forks 338 (observed 2026-08-28T04:03:33.647791+00:00)

## What it is
A real-time full-duplex speech recognition server built on the Kaldi toolkit and GStreamer framework, implemented in Python. It streams audio in over websockets and returns partial recognition hypotheses, with a scalable master-worker architecture.

## Use cases
- stream live microphone audio and get real-time speech-to-text
- build a voice typing feature like Android's dictation
- transcribe long audio recordings with automatic segmentation at silences
- run a self-hosted speech recognition server with multiple concurrent sessions
- rescore recognition output with a large language model
- support many audio codecs for streaming ASR

## When to choose
- you need self-hosted, real-time streaming speech recognition with partial results
- you want scalable recognition via independently deployable workers
- you already have Kaldi GMM or online DNN acoustic models

## When to avoid
- you want a modern maintained ASR stack (e.g. Whisper or newer K2-based tools)
- you need Python 3.10+ or Tornado 5+ with post-processing, which has known issues
- you only need offline batch transcription without streaming

## Facets
- artifact type: service
- maturity: maintenance
- function: speech-recognition, http-server, websocket, streaming
- domain: speech-processing, apis
- platform: python, self-hosted
- tags: kaldi, gstreamer, asr, voice-typing, real-time-transcription, audio-streaming, natural-language-processing, linux, web-server

## Member repositories
- alumae/kaldi-gstreamer-server (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:33.647791+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 2026-08-30T06:47:40.890107+00:00, confidence not recorded.
  - readme: https://github.com/alumae/kaldi-gstreamer-server (fetched 2026-08-28T04:03:33.647791+00:00, sha 200505ebdb3e)
- Data as of 2026-08-30T08:39:29.467469+00:00.