RealSub

RealSub uses AI technology as its core function: it runs speech-recognition and voice-activity-detection models (OpenAI Whisper via faster-whisper, and Silero VAD) locally on the user's own computer to turn audio the user is already playing into live subtitles. If the user enables translation, the recognized subtitle text is sent to the translation service the user selected (Microsoft Translator by default, or an OpenAI-compatible LLM endpoint, DeepL, or a translation server the user runs locally) and the returned translation is displayed. Audio is never uploaded. The subtitles and translations produced this way are generated at runtime, from the user's own audio, and are shown only to that user on their own screen. RealSub does not generate art, music, voice-over, or narrative content, and it does not share generated text with other users or publish it anywhere. None of the shipped content assets are generated by AI: interface text, icons, store artwork, screenshots and video are written, laid out or recorded by us. The store capsules are programmatic layouts, and the demo footage is real screen recording of licensed material.