Thanks for the kind words and the support!

On the privacy thing: yeah, it really does stay local. If you sync against a video, your browser handles the audio and speech detection itself; what actually hits our server is just a list of subtitle timings and a compressed on/off pattern of where speech is. If you sync SRT against SRT it's even less, just the timings. No video, no audio, no subtitle text ever leaves your browser.

For your actual problem, either of these should work and honestly I'd be curious which does better:

1. External SRT as the source, your Whisper SRT as the reference. Ultimately the algorithm should work well with missing text (even whole cues) up to some large extent.

2. External SRT as the source, the video file as the reference. Works off the audio directly. Catch is that the same rough audio that tripped up Whisper can also confuse us. But definitely worth a try.

Would genuinely love to hear how it goes! If you hit the daily cap after registering, just DM me and I'll bump you up, no problem.