I have been looking for tools that render modern and fancy captions as seen on viral videos instantly. However, most tools have limitations around how much video they can process.

Then, after trying a few I realized that most of them took too long to process videos and podcasts.

We've built a high-performance captioning system with a custom GPU-powered rendering engine for parallel video processing and transcription to address this problem.

You can transcribe any video or podcast within minutes. The transcription editor works like Google Docs and you can adjust everything about Captions. The editor ensures frame-precise caption synchronization.

Some of the technical details: - Custom NVIDIA GPU implementation for parallel processing - Real-time transcription and rendering pipeline for smooth performance - Support for 4K video processing - 18 language models with 99.9% accuracy. We will launch 100+ languages very son. - Multi-format support (.mp4, .mkv, .mov, .mp3, .wav, .m4a and many other standard formats) - Custom rendering engine built from scratch for high-speed processing - B-Roll included and 4K output is supported for all plans.

Our system processes video rendering and transcription in parallel, achieving speeds significantly faster than traditional CPU-based solutions and most of other tools using GPUs.

The editor allows word-level timing adjustments while maintaining perfect sync with video frames.

Demo: https://www.youtube.com/watch?v=s3GHU1_KBR4

Try it out for free: https://captions.joyspace.ai

We’d love to see what you think on our Joyspace AI Captions. Let us know if you have any feedback.

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Show HN: Joyspace AI Captions – low cost GPU powered parallel video rendering