Real-Time Bilingual Video & Audio Translation – SonicCaption

SonicCaption brings real-time bilingual subtitles to any tab.
Watch videos, live streams, anime, meetings, and online classes in other languages and follow along instantly — without waiting for official subtitles or uploading files anywhere.

🚀 What SonicCaption does

SonicCaption listens to the audio in your current tab and overlays subtitles directly on the page.
You see original subtitles + translated subtitles at the same time, updated in real time.

It works on:

Video platforms: YouTube, Netflix, Bilibili, etc.

Live streams: Twitch and other streaming sites

Meetings: Zoom, Google Meet in the browser, webinar tools

Podcasts, interviews, talk shows, online courses, and more

No extra website, no file upload — everything happens right inside your browser tab.

🔧 How to use SonicCaption in Edge

Install SonicCaption from Microsoft Edge Add-ons.

Pin the extension to your toolbar for quick access.

Open any tab that plays video or audio.

Click the SonicCaption icon, choose your target language, then press Start.

Subtitles will appear on top of the page in real time.

That’s it — your normal tab becomes a bilingual viewing experience.

✨ Key features

Real-time subtitles for any tab with audio

Dual subtitles: original language + translation shown together

Works with video and audio (no need for built-in subtitles)

AI-powered transcription & translation for high accuracy

Low latency, suitable for live streams, meetings, and classes

Overlay style designed to stay readable without blocking the content

🌍 Languages supported

Main languages (listed first):
English, Chinese, Japanese, Korean,
Spanish, Portuguese, French, German, Italian, Russian,
Arabic, Hindi, Indonesian, Vietnamese, Thai, Turkish.

All supported languages (full list):
English, Chinese, Japanese, Korean,
Spanish, Portuguese, French, German, Italian, Russian,
Arabic, Hindi, Indonesian, Vietnamese, Thai, Turkish,
Afrikaans, Albanian, Azerbaijani, Basque, Belarusian, Bengali, Bosnian, Bulgarian,
Catalan, Croatian, Czech, Danish, Dutch, Estonian, Finnish, Galician, Greek,
Gujarati, Hebrew, Hungarian, Kannada, Kazakh, Latvian, Lithuanian, Macedonian,
Malay, Malayalam, Marathi, Norwegian, Persian, Polish, Punjabi, Romanian,
Serbian, Slovak, Slovenian, Swahili, Swedish, Tagalog, Tamil, Telugu,
Ukrainian, Urdu, Vietnamese, Welsh.

The source language is auto-detected.
You just pick your target language and SonicCaption will generate subtitles and translations automatically.

🎯 Ideal for

Watching anime, dramas, and movies in other languages

Following YouTube tutorials and online courses from global creators

International meetings, webinars, and remote collaboration

Live streams (e.g. Twitch) that don’t provide subtitles

Podcasts, interviews, and talk shows in foreign languages

Language learners who want to see original + translated subtitles together

Anyone who wants to make any tab bilingual with one click

📬 Contact & feedback

Questions, bug reports, or feature ideas? We’d love your feedback:
[email protected]

If SonicCaption helps you understand more content in other languages, a rating or review in the Edge Add-ons store would mean a lot.