Aurora Subtitles - Live Captions for Windows PC Audio

Aurora Subtitles

Early Access - lifetime license · v0.1.54

Understand any sound from your PC, in your language.

Aurora turns calls, games, meetings, streams, and videos into live captions and real-time translation directly on Windows. Local processing, one-time payment, and no per-minute limits.

Choose a scenario

Aurora Subtitles · Live simulation

LIVE

Local pipeline

142 msLocal

  1. CaptureEN

    Source

    SystemMicBoth

    Maximum CompatibilityCPU

  2. Transcription

  3. TranslationES

Simulated Aurora interface over stock footage.

Now showing: Online meetings — Revisemos el calendario de lanzamiento.

Any Windows audio

Capture system audio, microphone, or both sources.

No per-minute limits

Use it every day without cloud credits or a usage meter.

CPU or GPU

Aurora adapts to the hardware available on your PC.

See Aurora translate Windows audio in real time

Play a video, call, stream, or voice chat. Aurora listens to your PC audio and shows translated captions as an overlay.

Aurora Subtitles

Demo: Aurora processing real Windows audio and showing translated live subtitles.

Local-first audio processing. No monthly subscription. One-time payment. Lifetime license for one Windows installation on one PC. Early Access updates included.

Buy Aurora - one-time payment

Discord, games, meetings, streams, and hearing support

Aurora is a Windows desktop app: it listens to PC audio, generates live captions, and displays translation in a configurable overlay.

Aurora Subtitles interface with live captions

Windows audio → captions in your language

Install & Prepare StackConfigure LanguagesStart Subtitling
  1. Discord and voice chats

    Follow Discord voice chats with live subtitles, even when people speak fast or in another language.

  2. Games and multiplayer sessions

    Read subtitles over the game while following team calls or cooperative sessions.

  3. Online meetings

    Use captions for meetings, calls, and professional content without adding bots to the call.

  4. Streams and videos

    Turn streams, classes, webinars, and video audio into subtitles over Windows.

  5. Language learning

    Compare speech with translated subtitles while following classes, talks, and foreign content.

  6. Hearing support and accessibility

    Can help people who rely on captions follow calls, videos, and online content.

One payment. Lifetime license.

Aurora Subtitles is sold as a one-time payment. You receive a lifetime license for the current Aurora Subtitles product, with updates included during Early Access. Each license is valid for one Windows installation on one PC.

Buy Aurora - one-time payment

Powerful Features

Everything you need for real-time subtitle translation, running entirely on your machine.

Real-time Subtitles

Capture system audio or microphone with WASAPI and turn Windows voice into live captions or translated subtitles. Latency varies by hardware and settings.

Local Core Pipeline

Core transcription and translation run locally on your PC. Activation, license checks, updates, and model downloads may contact servers.

More Than 50 Supported Languages

Aurora translates locally with its translator across the supported language set, using simple language names in the app.

GPU Acceleration

GPU acceleration is optional: Maximum Compatibility runs on CPU, while Maximum Quality uses the GPU when available and falls back to CPU.

Smart Overlay

Transparent, customizable, click-through subtitle window. Adjust fonts, colors, position & opacity to your taste.

Realtime AI Stack

Aurora uses a local transcriber, Silero VAD, and a local translator. GPU acceleration is optional, with automatic CPU fallback.

Why Aurora?

Live captions and translation without renting access every month

Aurora Subtitles is built for people who want real-time captions and translation without monthly plans, usage limits, or credit-based pricing.

Maximum Compatibility runs entirely on CPU, accepts English audio, and translates it into 51 published target languages. Maximum Quality uses a separate set of 51 selectable languages and can use GPU acceleration or fall back to CPU automatically.

No monthly subscription

No per-minute cloud credits

No cloud usage meter for daily captioning

Core transcription and translation run locally

Works with microphone and Windows system audio

Discord, meetings, games, streams, and accessibility workflows

Why Aurora does not need a monthly subscription

Cloud live translation services often charge monthly fees because every minute of audio can create ongoing server costs. Aurora takes a different approach: it runs the core transcription and translation pipeline locally on your own Windows PC.

Maximum Compatibility works entirely on CPU, while Maximum Quality can accelerate on a compatible GPU and automatically fall back to CPU.

  • One-time payment instead of recurring monthly payments
  • No per-minute cloud credit system
  • No need to rent transcription infrastructure for everyday use
  • Better fit for frequent users, gamers, stream watchers, students, professionals, and accessibility workflows

Stop renting live translation. Run it locally.

One-time payment, no monthly subscription. Lifetime license for one Windows installation on one PC. Early Access updates included.

Buy Aurora - one-time payment

Aurora vs cloud-based live translation subscriptions

Aurora is positioned as a local-first, no-subscription alternative for Windows users who prefer to control the core captioning workflow on their own machine.

Feature
Aurora Subtitles
Cloud subscription tools
No subscription
No
Usually yes
Feature
No per-minute cloud credit system
Often minutes, credits, or usage limits
Core processing
The core pipeline runs locally on compatible hardware.
Often cloud-based
Best for
Discord, games, meetings, streams, and hearing support
Quick setup, low-end PCs, occasional usage
Ownership model
One payment. Lifetime license.
Recurring subscription

Built also for hearing support

Aurora Subtitles is not a medical device, but it can help Windows users who rely on captions follow voice conversations, meetings, videos, streams, and everyday PC audio with live captions and translated subtitles.

The configurable overlay can fit accessibility workflows when built-in captions do not cover a specific app, audio source, or workflow need.

  • Live captions for Windows voice calls
  • Captions for online meetings and video calls
  • Subtitles for streams, videos, and online content
  • Hearing support for people who rely on captions
  • Translation when the original language is difficult to follow

Aurora Subtitles is not a medical device and is not a replacement for professional accessibility services, human interpreters, or legally required accessibility accommodations.

Try Aurora for live captions

One-time payment. Lifetime license for one Windows installation on one PC. Early Access updates included. No monthly subscription.

Buy Aurora - one-time payment

Already used by early Windows users

Aurora is already being used in practical Windows voice, translation, and caption workflows.

Discord and calls

Early Windows users use Aurora to follow voice conversations on Windows.

Meetings and translation

The overlay helps in meetings, calls, and multilingual conversations.

Accessibility

It also fits hearing support workflows for people who rely on captions.

Use

Already used by early Windows users for Discord, meetings, and accessibility workflows.

Privacy

The core pipeline runs locally on compatible hardware.

How It Works

1

Install & Prepare Stack

Download Aurora Subtitles and prepare the realtime stack: local transcriber, Silero VAD, and local translation models.

2

Configure Languages

Select source and target languages. Add speech guidance for names, brands, technical vocabulary, or specific scenarios.

3

Start Subtitling

Click START or use your global hotkey. Real-time subtitles appear as a customizable overlay on your screen.

Real-time speech translation architecture

If you are searching for how the technical pipeline works, here is the short version: native audio capture, transcriber + Silero VAD, local translator, and an on-screen overlay.

Audio input (WASAPI)

Aurora listens to microphone or system audio on Windows using native capture with low latency.

Transcriber + Silero VAD

Aurora uses a local transcriber and Silero VAD to segment speech and keep latency low.

Local translation

Text is translated locally using the selected preset, with automatic CPU/GPU routing where supported.

Overlay subtitles

Translated subtitles appear on screen as a customizable overlay for games, meetings, and streams.

Deep dive into the local pipeline

Explains WASAPI, transcriber, Silero VAD, local translation, GPU, and the overlay step by step.

Read how it works

Concrete use cases for Aurora

Aurora is built for following real voice on Windows: chats, games, meetings, streams, classes, accessibility, and multilingual conversations.

Discord and voice chats

Follow Discord voice chats with live subtitles, even when people speak fast or in another language.

Games and multiplayer sessions

Read subtitles over the game while following team calls or cooperative sessions.

Online meetings

Use captions for meetings, calls, and professional content without adding bots to the call.

Streams and videos

Turn streams, classes, webinars, and video audio into subtitles over Windows.

Language learning

Compare speech with translated subtitles while following classes, talks, and foreign content.

Hearing support and accessibility

Can help people who rely on captions follow calls, videos, and online content.

Multilingual conversations

Translate voice conversations when the original language is difficult to follow in real time.

If your main workflow is live voice, Aurora is the starting point.

Buy Aurora - one-time payment

Designed for Discord, meetings, streams, videos, and hearing support

Live captions for Discord and gaming

Follow voice chat, multiplayer sessions, and game-related conversations with a real-time overlay that works on top of your Windows workflow.

Discord live captions, Discord subtitles, real-time subtitles for gaming, translate Discord voice chat, Windows gaming subtitles

Private live captions for meetings and calls

Use Aurora with Teams, Zoom, Google Meet, and other meeting tools by capturing microphone or system audio locally, without adding bots to the meeting.

private live captions for meetings, local captions for Teams, Zoom live captions Windows, Google Meet translation Windows, meeting subtitles without bot

Subtitles for streams, videos, and PC audio

Use Aurora to caption or translate audio from YouTube, Twitch, online courses, webinars, and other Windows audio sources.

real-time subtitles for PC audio, translate Twitch live, YouTube live subtitles Windows, live captions for Windows system audio

Hearing support for everyday Windows audio

Aurora can help people who rely on captions follow spoken audio across Windows apps, calls, streams, and videos.

hearing support captions Windows, accessibility captions for Windows, live captions for Windows

Technical Specifications

Variable

Latency varies

50+

Language options

Local-first

Core pipeline local

CPU/GPU

GPU optional · CPU fallback

Realtime Stack

Local transcriberSelected presetASR
Silero VAD~2.3 MB ONNXVoice
Local translatorSelected presetLocal translation
CPU / GPUAutomatic routingfallback

Optional GPU acceleration

Maximum Compatibility runs entirely on CPU with English input audio. Maximum Quality uses a separate set of 51 selectable languages, can use GPU acceleration, and falls back to CPU automatically when needed.

Requirements and Transparency

Tier
System
CPU
RAM
GPU
Disk
Internet
Maximum Compatibility
Windows 11 64-bit
Modern multi-core CPU
Depends on workload
Not required (CPU only)
Space for selected models
Activation and models
Maximum Quality
Windows 11 64-bit
Modern multi-core CPU
Depends on workload
GPU acceleration / CPU fallback
Space for selected models
Activation and models

Compatibility and acceleration

  • Maximum Compatibility runs entirely on CPU with English as the input language.
  • Maximum Quality uses GPU acceleration when available and falls back to CPU automatically.
  • Capture Windows system audio, microphone audio, or Both (experimental); microphone audio stays out of the overlay in Both mode.

Transparent Early Access

Early Access means Aurora is actively improving. Requirements are published clearly, updates are included, and buyer feedback helps shape the product.

It does not replace professional human review and should not be the sole source for medical, legal, financial, or safety decisions.

Everything Included

Real-time transcription and translation
Local-first audio processing
No monthly subscription or per-minute cloud credits
One-time payment. Lifetime license for one Windows installation on one PC. Early Access updates included.
Local transcriber as the main ASR model
Silero VAD for voice activity detection
Local translator with more than 50 supported languages
WASAPI microphone and system audio capture
Maximum Compatibility: English audio and 51 target languages on CPU
Maximum Quality: GPU acceleration with automatic CPU fallback for any available language pair
Both (experimental): separate system audio and microphone capture; microphone text stays out of the overlay
Experimental anonymous speaker distinction using CPU only and no additional VRAM
Smooth, stable overlay designed for at least three subtitle lines
Realtime readiness checks and smarter guidance
Global hotkeys for instant control
Live captions for Discord, games, meetings, streams, video calls, and accessibility workflows

Have questions? Read the FAQ, but the commercial model is simple: one-time payment, no monthly subscription.

Buy Aurora - one-time payment

Frequently Asked Questions

Does Aurora Subtitles need internet to translate in real time?
Internet is required for activation/license validation and model downloads. Main processing can run locally depending on your setup.
Can I use Aurora Subtitles for meetings, Discord, and video calls?
Yes. Aurora can capture Windows audio and display live captions or translated subtitles over meetings, Discord, video calls, streams, and other apps. Results may vary depending on audio quality, language, hardware, and settings.
What if CUDA or GPU acceleration is unavailable?
Maximum Quality falls back to CPU automatically. Maximum Compatibility does not require CUDA; update NVIDIA drivers only if you want GPU acceleration.
One payment. Lifetime license.
Aurora Subtitles is sold as a one-time payment. You receive a lifetime license for the current Aurora Subtitles product, with updates included during Early Access. Each license is valid for one Windows installation on one PC. Each license is valid for one Windows installation on one PC. Requires Windows 11. Maximum Compatibility runs on CPU; Maximum Quality uses GPU acceleration with automatic CPU fallback. Final price and local currency are shown at checkout.
Requirements and Transparency
Aurora offers two Windows 11 presets with separate language sets. Maximum Compatibility runs entirely on CPU, accepts English audio, and translates it into 51 published target languages. Maximum Quality offers 51 selectable languages, optional GPU acceleration, and automatic CPU fallback.
Hearing support
Useful for users who benefit from visual captions in meetings, classes, videos, and daily content. Not a medical device.
Exclusive Offer

Get Aurora Subtitles

One-time payment. Lifetime license for one Windows installation on one PC. Early Access updates included. Final price and local currency are shown at checkout.

Early Access means Aurora is actively improving. Requirements are published clearly, updates are included, and buyer feedback helps shape the product.

Secure payment via Lemon Squeezy

Live captions and real-time translation with a local-first pipeline

Aurora is built to work as a local translator and live captions tool on Windows. That means more privacy, more control over your setup, and less dependency on external services for daily workflows.

  • Local processing with transcriber, Silero VAD, and translator.
  • Live captions for system audio or microphone.
  • Better fit for meetings, Discord, games, and video calls.
  • More control over models, performance, and privacy.

Two modes, two sets of 51 languages

Maximum Compatibility accepts English audio and offers 51 CPU translation targets. Maximum Quality has a separate set of 51 selectable languages. Voice and text stay on your PC during the core pipeline.

50+

options

Local-first

Core pipeline local

CPU/GPU

accelerated

Languages available in Aurora

Local translated subtitles for conversations, meetings, videos, and streams.

EnglishArabicBulgarianBanglaCatalanCzechDanishGermanGreekSpanishEstonianPersianFinnishFilipinoFrenchGujaratiHebrewHindiCroatianHungarianIndonesianIcelandicItalianJapaneseKannadaKoreanLithuanianLatvianMalayalamMarathiDutchNorwegianPunjabiPolishPortugueseRomanianRussianSlovakSlovenianSerbianSwedishSwahiliTamilTeluguThaiTurkishUkrainianUrduVietnameseChineseZulu

Aurora Subtitles uses AI and may make mistakes. Always verify content before using it in critical contexts.

If your main workflow is live voice, Aurora is the starting point.

Buy Aurora - one-time payment
Get Aurora - One-time payment