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🎬Making Technical Explainer Videos in a Clone of My Own Voice — Marp Hand-Drawn Figures, a Recording Teleprompter, ElevenLabs PVC × v3, and Masking Seams with a Lingering Pause

Production know-how for making slide-format technical explainer videos narrated in my own voice, using Marp slides + ElevenLabs Professional Voice Clone (PVC) × v3. It covers roughjs hand-drawn-style figures, a recording teleprompter for clone training, how to mask the 'timbre seams' caused by v3's independent per-chunk generation with a lingering pause, detecting and correcting misreadings, and an operation for proofreading series-wide duplication with multiple agents.

elevenlabsvoicecloningmarproughjs

📺Adding Japanese Captions to Silent Demo Videos in Bulk with Claude Code

A workflow for generating Japanese subtitles (SRT) for tool demo videos with no audio or captions by having Claude Code inspect frame contact sheets, then uploading them in bulk via the YouTube Data API captions.insert endpoint.

youtubeyoutubedataapipythonytdlp

🤖Auto-Generating Bilingual Video Subtitles with Claude Code and Publishing via IIIF v3 Manifests

How to efficiently generate bilingual video subtitles using Claude Code's multimodal capabilities and ffmpeg scene change detection, then publish them via IIIF v3 manifests

claudecodeffmpegiiifwebvtt

📸Fixing the White Bar at the Bottom of Chrome Headless Screenshots

When using Chrome Headless --screenshot to capture HTML as images, a white bar appears at the bottom. Here's the root cause and a reliable fix.

chromeextensionpythontipsffmpeg

🎭Auto-Generating VRM Character Animation Videos with Three.js + Puppeteer

Implementation notes on building a pipeline that animates VRM models on headless Chrome using Three.js and @pixiv/three-vrm, combined with VOICEVOX lip sync, to auto-generate VTuber-style explainer videos.

threejsjavascriptpythonvrm

🐥How to Create Distortion-Free Thumbnails from 360-Degree Videos and Photos

How to create distortion-free thumbnail images from 360-degree videos and photos

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👋Converting Audio Published on the NDL Historical Sound Archive to mp4

Converting audio published on the NDL Historical Sound Archive to mp4

ffmpegm3u8