JunSuzukiJapan

LumeSub — Real-time translation subtitles for anything on your screen LumeSub is a macOS app that captures system audio, transcribes it live, translates it, and shows the result as transparent overlay subtitles. Watch videos or join online meetings in any language and follow along with readable translated captions — no matter which app is playing the sound. Built with the Meta Model API: Muse Voice Transcribe for real-time speech recognition (25 languages, auto-detect) and Muse Spark 1.3 for context-aware translation. The translation window splits finalized lines (upper, white) from in-progress streaming lines (lower, gray), keeps sentences on screen for a readable 4–6 seconds based on reading speed, and retains previous sentences while new ones arrive — so late results are never lost and the display never flickers. Demo: one continuous take translating Japanese, Spanish, French, Chinese, Korean, and Arabic into English, live.