EchoStream: AI Subtitles & Dub
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About this app
EchoStream Player is a modern, offline-first AI video player, subtitle generator, and dubbing studio. Watch your favorite movies, series, and local videos with automated on-device subtitle generation, instant multi-language subtitle translation, and studio-grade AI audio dubbing.
Enjoy crystal-clear playback with zero cloud uploads — all speech recognition, subtitle translation, and AI audio dubbing run 100% locally on your device for absolute privacy.
🌟 KEY FEATURES
🎬 Advanced Media Playback & Gesture Controls:
• Hardware-accelerated video playback supporting MP4, MKV, AVI, MOV, WebM, and FLV.
• Intuitive gesture controls: smooth vertical swipe for brightness and volume, double-tap seek (10s), pinch-to-zoom aspect ratio switching, and variable speed control (0.25x to 3.0x).
• Multi-track audio switcher for seamless audio track switching.
• Background playback and picture-in-picture (PiP) support.
🎙️ AI Video Dubbing Studio & Audio Translation:
• Studio-grade on-device AI voice dubbing for your favorite videos.
• Re-dub dialogue into different languages while preserving natural timing.
• Manage and switch between generated dubbed audio tracks directly inside the player.
🤖 On-Device AI Subtitle Generator & Translator:
• Auto-generate timestamped subtitles and closed captions (CC) for any local video — completely offline.
• Instant subtitle translation for language learning across multiple international languages.
• On-device Whisper AI speech recognition for maximum transcription accuracy.
• Dual subtitle display: view original and translated subtitles simultaneously.
🎨 Subtitle Studio:
• Fine-tune subtitle sync with manual timecode audio-delay adjustments (+/- ms).
• Load external subtitles (SRT, VTT, ASS) or export generated subtitles to SRT and WebVTT.
📂 Smart Local Video Library:
• Automatic local video scanner — browse and play MP4, MKV, AVI, MOV videos from your device storage.
🔒 100% Private & Offline AI Video Player:
Your media never leaves your phone. All AI speech-to-text models, neural translation, and dubbing execute locally on your device hardware with zero data collection, zero tracking, and zero cloud dependencies.
Experience the future of media playback with EchoStream Player — the private offline AI video player, subtitle translator, and dubbing studio.
Enjoy crystal-clear playback with zero cloud uploads — all speech recognition, subtitle translation, and AI audio dubbing run 100% locally on your device for absolute privacy.
🌟 KEY FEATURES
🎬 Advanced Media Playback & Gesture Controls:
• Hardware-accelerated video playback supporting MP4, MKV, AVI, MOV, WebM, and FLV.
• Intuitive gesture controls: smooth vertical swipe for brightness and volume, double-tap seek (10s), pinch-to-zoom aspect ratio switching, and variable speed control (0.25x to 3.0x).
• Multi-track audio switcher for seamless audio track switching.
• Background playback and picture-in-picture (PiP) support.
🎙️ AI Video Dubbing Studio & Audio Translation:
• Studio-grade on-device AI voice dubbing for your favorite videos.
• Re-dub dialogue into different languages while preserving natural timing.
• Manage and switch between generated dubbed audio tracks directly inside the player.
🤖 On-Device AI Subtitle Generator & Translator:
• Auto-generate timestamped subtitles and closed captions (CC) for any local video — completely offline.
• Instant subtitle translation for language learning across multiple international languages.
• On-device Whisper AI speech recognition for maximum transcription accuracy.
• Dual subtitle display: view original and translated subtitles simultaneously.
🎨 Subtitle Studio:
• Fine-tune subtitle sync with manual timecode audio-delay adjustments (+/- ms).
• Load external subtitles (SRT, VTT, ASS) or export generated subtitles to SRT and WebVTT.
📂 Smart Local Video Library:
• Automatic local video scanner — browse and play MP4, MKV, AVI, MOV videos from your device storage.
🔒 100% Private & Offline AI Video Player:
Your media never leaves your phone. All AI speech-to-text models, neural translation, and dubbing execute locally on your device hardware with zero data collection, zero tracking, and zero cloud dependencies.
Experience the future of media playback with EchoStream Player — the private offline AI video player, subtitle translator, and dubbing studio.
AI video player, automatic subtitle generator, and dubbing studio 100% offline.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
• Initial public release of EchoStream Player.
• On-device AI video subtitle generator and multi-language translation.
• AI video dubbing studio support.
• Hardware-accelerated offline media playback with gesture controls.
• 100% private and offline — zero data collection.
• On-device AI video subtitle generator and multi-language translation.
• AI video dubbing studio support.
• Hardware-accelerated offline media playback with gesture controls.
• 100% private and offline — zero data collection.
