PLYNTE LIVEAUDIO v1.2.5 - WINDOWS & LINUX

Real-time local captions for your OBS.No cloud, no subscription, no API key.

LiveAudio is a free, open-source (MIT) app that generates real-time Whisper speech captions 100% locally and streams them to OBS over a local WebSocket. v1.2.5 loads cached local ASR models immediately, avoids prior network waits, and falls back to CPU if CUDA fails.

Download LiveAudio v1.2.5 (free)How it works
  • 100% local
  • MIT open-source
  • Windows + Linux
LiveAudio product mark with the LiveAudio name and Plynte attribution.

LIVE DEMO

See LiveAudio running live.

A real screen recording of the app generating captions — not a mockup.

real capture

Real capture — LiveAudio interface, unedited.

// why LiveAudio

Straight answers to the real objections.

// 100% local

Is it really 100% local?

All processing happens on your machine, with no telemetry. Internet is needed only on first run to download Python, deps and models; after that it runs fully offline.

no telemetry · offline after first run

// linux

Does it work on Linux?

Yes. Linux x86_64 captures from the microphone and needs libportaudio2. System-audio loopback (WASAPI) is Windows-only.

linux x86_64 · sudo apt install libportaudio2

loopback Windows-only

// gpu

Do I need a GPU?

No. The CPU works. NVIDIA CUDA is optional but recommended: it is auto-detected and needs driver ≥ 525 and VRAM ≥ 4 GiB.

cpu works · cuda driver ≥ 525 · vram ≥ 4 GiB

// the signal path

From microphone to OBS, locally.

Capture audio, keep real speech, decode it locally, then send captions to OBS. Read the docs when you need the implementation details.

Read the signal-path docs

  1. Capture

    Choose a microphone or supported system audio input.

    mic · system loopback (windows)

  2. Gate

    Silero VAD keeps silence out before Whisper decodes.

    silero-vad · onset pre-roll + threshold

  3. Decode

    Whisper turns speech into text on CPU or optional CUDA.

    whisper · tiny / base / small / turbo

  4. Broadcast

    Local subtitle JSON reaches OBS or another localhost client.

    ws://127.0.0.1:8765

// choose a path

See the product, install it, or wire it into OBS.

The home page gives you the decision. These routes carry the details without making you scroll through every possible configuration.

01

Product Tour

Walk through real released-app states, from first run to diagnostics.

Open the tour
02

Getting Started

Install, choose a profile, and start the local caption engine.

Start setup
03

OBS Setup & Docs

Connect the local subtitle output to OBS, then keep the technical reference nearby.

Set up OBS Browse docs

// download

Local captions in your OBS in minutes.

Free & open-source (MIT). No subscription, no API key. You only pay your own electricity — hardware not included.

Download LiveAudio v1.2.5 (free)How it works
v1.2.5Detecting OS…
Download LiveAudio v1.2.5 (free)