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Captions & Subtitles

Guides to SRT and WebVTT files, caption timing and reading speed, subtitle translation, sync drift and accessibility for UK creators.

Captions & SubtitlesCaption Reading Speed: Characters per Second, Line Length and TimingHow fast should captions be? A practical guide to characters per second, words per minute, line length and minimum durations, with worked examples.8 min readCaptions & SubtitlesCaptions and Accessibility for UK Creators: What the Law Says and What Good Looks LikeA plain-English guide for UK creators to captions and accessibility: the Equality Act, public sector rules, WCAG 2.2, Ofcom, and practical caption quality.9 min readCaptions & SubtitlesHow to Fix Subtitle Sync Drift: Offsets, Frame Rates and Variable Frame Rate VideoWhy subtitles slide out of sync and how to fix it: diagnose offset, linear drift and VFR problems, then repair timings with FFmpeg, a subtitle editor or a script.9 min readCaptions & SubtitlesHow to Translate Subtitles Without Breaking the TimingA practical workflow for translating SRT and VTT subtitles: lock the source timing, translate text only, then re-check reading speed and line breaks.8 min readCaptions & SubtitlesOpen vs Closed Captions: Burned-In or Toggleable?Open captions are burned into the picture; closed captions are a separate track viewers can switch on. When to use each, and how to make both with FFmpeg.7 min readCaptions & SubtitlesSRT vs WebVTT vs ASS: Which Subtitle Format Should You Use?Compare SRT, WebVTT and ASS/SSA subtitle formats: syntax, styling, positioning, platform support and when each one is the right choice for your video.8 min readCaptions & SubtitlesShort-Form Captions: How to Make Punchy Captions for Shorts, Reels and TikTokHow to design and time short-form captions for Shorts, Reels and TikTok: 2 to 4 words per caption, safe placement, word highlighting and an FFmpeg workflow.8 min readCaptions & SubtitlesWhat Is an SRT File? The Subtitle Format Explained Line by LineA plain-English guide to the SRT subtitle format: how each block works, the exact timecode syntax, encoding pitfalls and how to create or fix an SRT file.8 min read