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Premium Live Caption Player
Realtime,completely offline video subtitle generatorfor VLC.
Generate highly accurate, real-time subtitles for VLC and MPV completely offline. Powered by PySide6 and a local Vosk API acoustic engine. No internet required, zero bandwidth usage, and 100% data privacy. Calibration sliders included for perfect audio sync.
Hello hunters! 👋
I built Premium Live Caption Player because I wanted an accessible, privacy-first way to watch videos with subtitles without relying on cloud-based APIs that harvest audio data.
It pairs a native hardware-accelerated PySide6 (Qt6 Python) desktop GUI with a local Vosk neural network language model (~45MB English acoustic matrix). It listens to your system audio pipe, hooks into VLC/MPV playhead timestamps via a local websocket, and generates captions on-the-fly directly on your CPU.
Key Features:
🔒 100% Offline Privacy: Your audio never leaves your machine. No APIs or internet required.
🎛️ Manual Calibration Sliders: Easily fine-tune timing offsets to perfectly align text with voice.
⚙️ Lightweight IPC Host: Runs seamlessly in the background on Windows, Mac, and Linux.
I would love to hear your feedback on the interface, performance, and accuracy!
How well does the Vosk engine hold up with accented English or heavy background noise in real world use?
Does the offline Vosk engine support different languages out of the box, or do you have to download separate model files for each one you want to use?
Ran it with VLC on a quiet podcast episode and the captions came through surprisingly clean without any network lag. The audio sync slider was a nice touch for catching up on slight drift mid-video.
Love that the calibration sliders are front and center, that attention to the timing details most tools ignore is exactly what separates a real player from a toy.
Subtitles popped up within a second of hitting play, which honestly surprised me for something running fully offline. Sync calibration was straightforward too.
About Premium Live Caption Player on Product Hunt
“Realtime,completely offline video subtitle generatorfor VLC.”
Premium Live Caption Player was submitted on Product Hunt and earned 5 upvotes and 8 comments, placing #91 on the daily leaderboard. Generate highly accurate, real-time subtitles for VLC and MPV completely offline. Powered by PySide6 and a local Vosk API acoustic engine. No internet required, zero bandwidth usage, and 100% data privacy. Calibration sliders included for perfect audio sync.
Premium Live Caption Player was featured in Video Streaming (11.9k followers), Open Source (68.6k followers) and Artificial Intelligence (473.7k followers) on Product Hunt. Together, these topics include over 122k products, making this a competitive space to launch in.
Who hunted Premium Live Caption Player?
Premium Live Caption Player was hunted by Abba Aminu. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Abba Aminu