Blog

Practical notes on subtitle QC, AI transcription, line-breaking, and localization workflows — from the team building GeekLink.

Engineering Note

Why AI-Translated Subtitles Lose Timing

Why AI-translated subtitles can develop gaps or shifted timing — and how original SRT timecodes, stable IDs, and structured JSON keep every line aligned.

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Product Update

Better OCR for Typewriter-Effect Captions and Animated Text

Typewriter and fade-in captions reveal text a character at a time. GeekLink 0.4.34 rebuilds those temporary OCR fragments into cleaner, editable subtitle cues.

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AI Accuracy

We Benchmarked 4 OCR Engines on Burned-In Video Subtitles — Watermarks Break Every One

Open-source 1,140-sample, 6-language OCR benchmark: PaddleOCR, EasyOCR, Tesseract, and GeekLink's own models all lose ~2.6-2.9x accuracy near a watermark — then we validated the ranking against real production data, and it flipped.

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Product Update

GeekLink 0.4.5 Brings the Full Subtitle Workflow to Windows

0.4.4 first brought OCR to Windows. 0.4.5 completes the Windows build with speech recognition, OCR, AI translation, editing, batch export, and burn-in.

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Product Update

GeekLink Now Detects Hardcoded Subtitles Automatically

No more guessing where the subtitles are. GeekLink's OCR now scans the video, detects each subtitle line, and pre-fills the language — you just confirm. And with 0.4, GeekLink is out of beta.

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AI Workflow

How to Turn Videos Into Text You Can Feed to AI

ChatGPT and Claude can't reliably transcribe a batch of videos. Here's the workflow I use: batch-convert videos to text with speech recognition and OCR, then feed clean transcripts to AI to summarize, quiz, and answer questions.

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AI Accuracy

I Checked AI-Generated Subtitles Against TED's Official Captions

I ran GeekLink's speech recognition on a TED talk, then checked every line against TED's own official captions — here's exactly where timing and wording differed.

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Subtitle Edit

7 Subtitle Edit Tricks That Cut Your Subtitle QC Time

The Subtitle Edit features that save the most time when reviewing subtitles — bookmarks, Multiple Replace, Batch Convert, and more.

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