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In-depth, practical guides to captions, subtitles, speech-to-text and AI-assisted video production.
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
Speech to Text
How speech recognition and Whisper work, choosing a model size, word-level timestamps and getting accurate transcripts.
Speech to TextHow Whisper Works: Speech Recognition Explained in Plain EnglishA plain-English look inside OpenAI's Whisper: spectrograms, 30-second windows, the encoder and decoder, special tokens, timestamps and why it hallucinates.8 min readSpeech to TextHow to Get More Accurate Transcripts: Recording and Settings TipsPractical ways to cut transcription errors: better recording, clean audio prep with FFmpeg, the right Whisper settings and a quick review routine.8 min readSpeech to TextLocal vs Cloud Transcription: Privacy, Cost and Speed ComparedShould you transcribe on your own computer or send audio to a cloud service? A practical comparison of privacy, UK GDPR duties, cost, speed and accuracy.8 min readSpeech to TextWhich Whisper Model Size Should You Use? Tiny to Large-v3 and TurboCompare Whisper's tiny, base, small, medium, large and turbo models, plus the English-only .en versions, and pick the right one for your hardware and audio.7 min readSpeech to TextWord-Level Timestamps and Forced Alignment: How to Time Every WordHow word-level timestamps work, when to use Whisper's word timings versus forced alignment, and how to turn them into accurate, readable captions.9 min read
AI Video Creation
Storyboarding AI video, consistent AI characters, frame rates, aspect ratios, voiceover scripts and YouTube AI disclosure rules.
AI Video CreationAn Honest Faceless YouTube Channel Workflow: From Idea to UploadA realistic faceless YouTube production workflow covering research, scripting, voice, visuals, editing and YouTube's rules on inauthentic content.8 min readAI Video CreationFrame Rates Explained: 24, 25, 30, 50 and 60 fps, and Why the UK Uses 25/50A practical guide to frame rates for UK creators: PAL 25/50 heritage, 50 Hz lighting flicker, 23.976 and 29.97, and how to avoid problems mixing frame rates.9 min readAI Video CreationHow to Keep Characters Consistent Across AI-Generated ImagesPractical techniques for keeping an AI character's face, outfit and style consistent across scenes: character sheets, reference images, seeds and fixes.7 min readAI Video CreationStoryboarding for AI-Generated Video: Plan Shots Before You PromptHow to storyboard an AI-generated video: turning a script into beats, writing a shot list, making an animatic and planning continuity before generating.7 min readAI Video CreationThe Ken Burns Effect: Turning Still Images into Smooth MotionHow to create the Ken Burns effect on still images, with a working FFmpeg zoompan command, every parameter explained, and simple fixes for jitter.8 min readAI Video CreationVideo Aspect Ratios and Resolutions for YouTube, Shorts, Reels and TikTokWhich aspect ratio and resolution to use for YouTube, Shorts, Reels and TikTok, how to reframe between them, and how to keep captions clear of buttons.7 min readAI Video CreationWriting for AI Voiceover: How to Script Narration That Text-to-Speech Reads WellHow to write narration scripts for AI and text-to-speech voiceover: pacing, punctuation, numbers, tricky UK names, pronunciation fixes and a checklist.8 min readAI Video CreationYouTube's Altered or Synthetic Content Disclosure: What to Label and HowHow YouTube's altered or synthetic content disclosure works in YouTube Studio, which AI use needs labelling, which does not, and how to decide.8 min read
Creator Workflow
Practical creator workflow guides: FFmpeg commands, YouTube export settings, file organisation and copyright-safe music.
Creator Workflow12 Essential FFmpeg Commands for Video CreatorsTwelve tested FFmpeg commands for creators: trim, join, extract audio, normalise loudness, burn subtitles, reframe to 9:16, grab thumbnails and compress.9 min readCreator WorkflowAI Video and Captioning Glossary: 54 Terms Explained from A to ZPlain-English A–Z glossary of AI video, captioning and transcription terms, from aspect ratio and bitrate to Whisper, word error rate and seeds.9 min readCreator WorkflowCopyright-Safe Music for YouTube: Licences, Content ID and RecordsHow to use background music on YouTube without copyright trouble: the YouTube Audio Library, licence types, how Content ID works and which records to keep.8 min readCreator WorkflowHow to Batch Rename Image Sequences with Zero-Padded NumbersRename numbered images safely: why zero-padding matters, natural sort traps, and tested PowerShell and macOS/Linux shell commands for image sequences.8 min readCreator WorkflowVideo Project Folder Structure and File Naming That ScalesA practical folder template and file-naming convention for video projects, with scripts to create it, version rules, backups and archiving tips.7 min readCreator WorkflowYouTube Export Settings: What to Use and WhyExport settings for YouTube uploads based on YouTube's own recommendations: container, codecs, bitrates, frame rate, colour and audio, plus an FFmpeg example.8 min read
File Sharing & Privacy
Moving large video files between phone and PC, how browser file transfer works and keeping client footage private.
File Sharing & PrivacyHow Browser-Based File Transfer Works: WebRTC, STUN, TURN and Encryption ExplainedHow device-to-device file transfer works in a web browser: WebRTC data channels, signalling, STUN and TURN, NAT traversal, relays and encryption in transit.8 min readFile Sharing & PrivacyHow to Send Large Video Files from Your Phone to a PC Without Losing QualityPractical ways to move large phone videos to a Windows PC or Mac: cable, AirDrop, Quick Share, cloud and browser transfer, plus how to avoid silent compression.7 min readFile Sharing & PrivacyProtecting Client Footage: A Practical Security Checklist for Video EditorsA practical security checklist for freelance editors and small teams handling client footage: storage, encryption, sharing, AI tools, deletion and UK GDPR.8 min read