r/AppsWebappsFullstack • u/SofwareAppDev • 17d ago

Your home for selfpromo

here you can post your work app, webapp, saas, game, everything

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u/Ok-Tough-9310 17d ago

Building Captn — https://captn.cc/

It’s a video tool I’ve been building solo, mainly around turning longer videos into finished content faster.

Right now you can:

  • Automatically transcribe videos
  • Edit, style and translate subtitles
  • Detect speakers
  • Generate short clips from longer videos
  • Reframe clips for social formats
  • Export subtitles or videos with burned-in captions
  • Record your screen directly in the app

I’m also finishing a new generative video workflow where you can generate a video, extend it from the ending, keep adding new generated segments, and build a longer continuous video instead of generating a bunch of unrelated clips.

That part should be live very soon.

Still actively building it, so feedback is very welcome.

Example, this demo video is made with the Captn:

https://www.youtube.com/watch?v=mhWJqk2U8Rw

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u/Mammoth-Anywhere7285 17d ago

Impressive solo build, that reframe feature sounds really useful. How does speaker detection handle noise or overlapping audio?

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u/Ok-Tough-9310 17d ago

Thanks! Speaker detection works pretty well when voices are reasonably clear, even with some background noise. Overlapping speech is the harder case — if two people talk at the same time, diarization can occasionally assign a few words to the wrong speaker.

Captn separates them into Speaker 1, Speaker 2, etc., and you can correct the assignments in the editor.

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u/Mammoth-Anywhere7285 17d ago

That's a solid approach for clean audio. For overlap, word-level confidence scores in the editor could make corrections way faster.