Aurora Subtitles - Live Captions for Windows PC Audio

Aurora Subtitles

Early Access - lifetime license

Live captions for any Windows audio.

Aurora puts live captions and real-time translation over Discord, games, meetings, streams, and videos. One-time payment. No monthly subscription.

Buy Aurora - one-time paymentDownload Aurora
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Aurora Subtitles overlay
Aurora Subtitles interface with live captions

Captions over your apps: read, translate, and keep working without switching windows.

Discord and calls

Read voice chats while staying in your app.

Real-time translation

Turn spoken audio into translated subtitles.

Privacy first

Core pipeline runs locally on compatible PCs.

Product demo

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. Early Access updates included.

Buy Aurora - one-time payment

Where it fits

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.

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.

Lifetime license

One-time payment. Lifetime license. Early Access updates included.

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.

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.

55+ Language Options

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

GPU Acceleration

Requires an NVIDIA GPU with CUDA support and updated drivers for practical real-time transcription and translation.

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, a local translator, and a prepared CUDA runtime.

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.

Aurora runs the core speech-to-text and translation pipeline locally on your Windows PC, using your NVIDIA GPU. It is not just another meeting assistant: it is a local live caption and translation overlay for real Windows workflows.

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

No subscription

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.

If you already have a compatible NVIDIA GPU, Aurora lets you use your own hardware instead of paying every month for cloud translation minutes.

  • 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. Early Access updates included.

Buy Aurora - one-time payment

Value comparison

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-time payment. Lifetime license. Early Access updates included.
Recurring subscription

Hearing support

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

Ready to try Aurora?

One-time payment. Lifetime license. 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.

Next step

Go to checkoutTalk to me

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 with the translator and the CUDA runtime prepared by Aurora.

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

Real Windows workflows

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

Search-focused guides

Find Aurora by the exact workflow

These pages separate real search intents: Live Captions alternative, Discord subtitles, PC audio overlay, and local speech translation.

Windows Live Captions alternativeComparison for local captions, translation, and overlay control.Live captions for DiscordSubtitles over voice chat, games, and communities.Real-time subtitles for WindowsLocal captions for any PC audio.Local live captionsFull workflow with transcriber, VAD, CUDA, and overlay.Local speech translationTranscriber + translator on-device.Subtitle overlay for PC audioSubtitles over Windows apps with click-through mode.

Aurora compared with built-in and local caption tools

Windows Live Captions is useful for basic captions. Aurora is for users who need more control, translation workflows, a configurable overlay, and Windows system audio workflows.

Tool
Real-time
Translation
Local
System audio
Aurora Subtitles
Yes
Yes
Yes
Yes
Windows Live Captions
Yes
Limited
Yes
Basic
Universal Translator AI
Yes
Yes
Yes
Mic
Evymind Realtime Subtitles
Yes
No
Yes
Yes

Where Aurora fits best

  • Captures system audio with WASAPI without virtual audio cables.
  • Translates live with a local GPU-accelerated translator.
  • Realtime v0.1.22 stack with a local transcriber.

Technical Specifications

Variable

Latency varies

55+

Language options

Local-first

Core pipeline local

CUDA

NVIDIA CUDA required

Realtime Stack v0.1.22

Local transcriber~574 MB q5_0ASR
Silero VAD~2.3 MB ONNXVoice
Local translator~2.5 GB GGUFLocal translation
llama.cpp CUDA~253 MBGPU runtime

NVIDIA GPU Required

Aurora Subtitles requires an NVIDIA GPU with CUDA support for practical real-time use. Full GPU translation requires at least 6GB VRAM; 8GB+ VRAM is recommended. 4GB VRAM can use limited compatibility mode with the translator on CPU and higher latency.

Requirements and Transparency

Aurora Subtitles provides real-time AI transcription and translation for Windows. It requires an NVIDIA GPU with CUDA support; full GPU translation needs 6 GB VRAM minimum. With 4 GB, limited compatibility mode can run the translator on CPU.

Tier
System
CPU
RAM
GPU
Disk
Internet
Compatibility and acceleration
Windows 11 64-bit
4 cores
16 GB
NVIDIA CUDA 4 GB VRAM
10 GB
Activation and models
Full GPU minimum
Windows 11 64-bit
4 cores
16 GB
NVIDIA CUDA 6 GB VRAM
10 GB
Activation and models
Recommended
Windows 11 64-bit
6-8 cores
16 GB
NVIDIA CUDA 8 GB+ VRAM
15 GB
Stable connection
Optimal
Windows 11 64-bit
8+ cores
32 GB
Modern NVIDIA CUDA GPU
20 GB+
Stable connection

Compatibility and acceleration

  • Windows 11 (64-bit).
  • NVIDIA + CUDA + updated drivers for GPU acceleration.
  • Without compatible GPU/CUDA support, real-time use is not supported.
  • Audio capture via WASAPI (system/loopback and microphone).

Models, languages, and performance

  • Transcriber model: ~574 MB. Silero VAD: ~2.3 MB.
  • Translator model: ~2.5 GB. CUDA runtime: ~253 MB.
  • Recommended reserve: 10-20 GB for app files, models, runtime, cache, and logs.
  • Latency varies based on model, load, drivers, and hardware.

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. Early Access updates included.
Local transcriber as the main ASR model
Silero VAD for voice activity detection
Local translator with 55+ language options
WASAPI microphone and system audio capture
Requires an NVIDIA GPU with CUDA support
Customizable overlay with click-through mode
Realtime readiness checks and smarter guidance
Performance modes for responsiveness, memory, and quality
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.
I get the error cublas64_12.dll or cudart64_12.dll was not found. How do I fix it?
This usually means the CUDA 12 runtime files are missing from the Aurora install or NVIDIA drivers are outdated. Confirm you have a compatible NVIDIA GPU, update drivers, reinstall the latest Aurora version, then restart the app/PC. If CUDA is unavailable, real-time use is not supported.
One-time payment. Lifetime license. Early Access updates included.
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. Requires Windows 11 and an NVIDIA CUDA GPU. Final price and local currency are shown at checkout.
Requirements and Transparency
Aurora Subtitles provides real-time AI transcription and translation for Windows. It requires an NVIDIA GPU with CUDA support; full GPU translation needs 6 GB VRAM minimum. With 4 GB, limited compatibility mode can run the translator on CPU.
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. Early Access updates included. Final price and local currency are shown at checkout.

Get Aurora Subtitles

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

Why local matters

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.

Supported languages

Local translation across 55+ language options

Translate live audio on Windows with local subtitles for meetings, classes, videos, streams, Discord, and international calls while keeping voice and text on your own PC.

55+

options

Local-first

Core pipeline local

GPU

accelerated

Languages available in Aurora

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

EnglishArabicBulgarianBanglaCatalanCzechDanishGermanGreekSpanishEstonianPersianFinnishFilipinoFrenchGujaratiHebrewHindiCroatianHungarianIndonesianIcelandicItalianJapaneseKannadaKoreanLithuanianLatvianMalayalamMarathiDutchNorwegianPunjabiPolishPortugueseRomanianRussianSlovakSlovenianSerbianSwedishSwahiliTamilTeluguThaiTurkishUkrainianUrduVietnameseChineseZulu

What's New

See how the product is evolving with every new version. Early Access includes updates during the early access period.

v0.1.22
  • Fix llama model path for Unicode user profiles
v0.1.21
  • fix: update subtitle translation handling
v0.1.20
  • Refactor code structure for improved readability and maintainability
v0.1.19
  • Add translation keys for download status and translator dependencies in multiple languages
v0.1.18
  • Visible app labels now use transcriber and translator wording instead of model brand names.
v0.1.17
  • Added Compatibility mode for 4 GB VRAM GPUs: the transcriber stays on GPU while the translator can run on CPU when needed.
  • Full GPU realtime translation now requires at least 6 GB VRAM and shows a clearer startup message when the GPU is too small.
  • Live status cards now show transcriber and translator latency and runtime separately.
v0.1.16
  • Bug Fixing and stability improvements.
v0.1.10
  • New professional interface for Aurora Subtitles, redesigned for clearer real-time transcription, live translation monitoring, and daily use on Windows.
  • Light and dark themes are now available, with the light theme enabled by default for new users and saved theme preferences for returning users.
  • Improved Transcriptions page with a wider Session Activity panel, better spacing, clearer filters, and a more readable live caption history.
  • New independent Session Activity window so you can keep the live transcription feed visible while minimizing the main Aurora app.
  • New Event Activity chart for live transcription sessions, including selectable time ranges and clickable series for translations, final captions, and partial captions.
  • Collapsible left navigation with icon-only mode, making Aurora easier to use on smaller screens without losing access to configuration, audio, tools, and logs.
  • Cleaner runtime and translation health cards focused on useful status information such as quality, latency, GPU usage, and pipeline state.
  • Added a Tools section with OVS Studio marked as coming soon, preparing Aurora for future creator and streaming workflow features.
  • Expanded UI translations across all supported app languages for the new navigation, activity panel, chart controls, theme controls, and tools page.
  • General layout polish across the app, including anchored header and footer behavior, better responsive scrolling, and a more premium visual system.
v0.1.9
  • Much faster local translation on supported NVIDIA GPUs, with the translation runtime prepared automatically by the installer.
  • Simpler first-time setup: Aurora now bundles the CUDA files it needs, so users do not have to install extra CUDA packages manually.
  • Improved real-time subtitle flow so short speech fragments are handled more consistently and fewer lines are skipped while watching live content.
  • Cleaner language selection with supported translator languages shown in a simpler, user-friendly way.
  • Better default language setup for new users: automatic source detection and English as the initial target language.
  • License protection is stricter: starting from the tray or global hotkey now also requires a valid license.
  • New update experience: Aurora can notify users when a new version is available and keep a small footer indicator until they choose to update.
  • Installer and app cleanup improvements for a smoother reinstall and upgrade experience.
  • Polished activation screen, including a corrected IliciLabs logo display.
v0.1.6
  • New 2026-04-30 realtime stack with local transcriber, Silero VAD, local translator, and CUDA runtime.
  • New experimental-auto core as the main event-driven pipeline.
  • Optimized real-time translation with less batching, shorter waits, and stale queue dropping.
  • Realtime Readiness guidance for model, GPU, audio, and latency setup.
  • More robust overlay: starts disabled, does not enable itself, and shows the latest subtitle.
  • Expanded benchmark metrics for ASR, VAD, translation, overlay, RAM/VRAM, and latency.
  • Streaming benchmark analysis to avoid stalls on long test runs.
  • Fixed UTF-8 panic in StabilityEngine with accents and non-ASCII languages.
  • More robust Windows audio capture with WASAPI 32-bit float and native mix-format fallback.
  • Changing the audio device now restarts the pipeline automatically.
  • Non-blocking audio, VAD, and ASR queues to prevent hangs when stopping or changing devices.
  • Installer fixed to place CUDA/cuBLAS DLLs next to the executable.
  • Production file logger added at %APPDATA%\AuroraSubtitles\logs.
  • Versioned model manifest with owned mirrors and no dependency on latest.
  • Renamed legacy RealtimeSubtitles paths to AuroraSubtitles.
  • Simplified UI: Transcriptions first, Configuration, badges, and fewer confusing options.
  • Improved filtering for noise, filler words, and suspicious translations.
  • Safer fallbacks for backends, models, audio, and devices.
v0.1.5
  • Maintenance release with fixes and stability improvements.
  • Improved installer and updater package distribution.
v0.1.3
  • Maintenance release with fixes and stability improvements.
  • Improved installer and updater package distribution.
v0.1.0
  • Initial public beta release.
  • Customizable transparent overlay with click-through support.
  • Hardware acceleration with NVIDIA CUDA.
Back to solutions

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