form | Robert James Metcalfe Blog

Self Recording Channels Tutorial

As mentioned at yesterday’s Self Recording Revisited Tutorial‘s Stop Press when it comes to using ffmpeg to record Audio and Video … Channels … are important. This excellent link taught us that the macOS command … ffmpeg -f avfoundation -list_devices … Continue reading →

Self Recording Revisited Tutorial

We’re revisiting the web application behind the recent Media Representation of URL Tutorial with regard to it’s original purpose to … allow some functionality for self recording … where your underlying operating system has … ffmpeg installed … and … … Continue reading →

Diagonal Element Rubber Banding Mobile Tutorial

Yesterday’s Diagonal Element Rubber Banding Tutorial saw “Rubber Banding” introduced, better for non-mobile, but today … we shore up mobile “Rubber Banding” via ontouchmove introduced … document.body.ontouchmove=function(e){ var rectis=document.body.getBoundingClientRect(); if (e.touches[0].clientX) { ourDrawLine(eval(rectis.left + e.touches[0].clientX), eval(rectis.top + e.touches[0].clientY)); } else … Continue reading →

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Latest Comments
1. admin on Tabular Single Row Radio Play TutorialOctober 12, 2026
  Thanks. Since then, a Shower Songs project at https://www.rjmprogramming.com.au/HTMLCSS/shower_songs.html is an improvement regarding "Radio Play" on mobile platforms.
2. LTX 2.3 Free on Tabular Single Row Radio Play TutorialOctober 12, 2026
  This is a thoughtful example of using a single-row layout and scroll behavior to reveal media progressively. I especially liked the way the tutorial ties the gallery to real interaction details rather than treating the UI as a static mockup. For readers experimenting with the next stage of visual prototyping, LTX 2.3 Free collects prompt examples and workflow guidance for planning AI video scenes; the same attention to camera movement and timing is useful when turning a storyboard into motion.
3. Marcus Ellery on Tabular Single Row Radio Play TutorialOctober 12, 2026
  The focus juggling with click() and blur() sounds painful. I ran into the same thing chaining YouTube iframes, the browser keeps handing focus back to whichever player was touched last. Keeping the window small and off to the side is a neat workaround. Any plan to bring Radio Play to mobile?
4. Sean Zhang on Word SearchSeptember 17, 2026
  Word search is such a good project size — enough logic (grid generation, word placement, collision checking) to stay interesting, but still shippable in an afternoon. I came to these kinds of puzzles from the canvas-game side, where the bottleneck turned out to be art assets rather than code; drawing the same character walking in four directions by hand was the worst part, which is why I ended up building a tool that generates walk-cycle sprite sheet candidates from a single reference image. Enjoyed reading how you approached this one.
5. Alex.X on Word SearchSeptember 17, 2026
  Seeing grammatical terms such as Adjective and Adverb alongside abbreviations such as API highlights how different kinds of words need different explanations. For learners, a one-sentence definition and a short usage example would help distinguish a word's meaning from merely recognizing its spelling. It would also be useful to distinguish an abbreviation's expansion from what it means in context.

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Self Recording Channels Tutorial

Self Recording Revisited Tutorial

SVG Emoji Favicon Aesthetics CSS Tutorial

Diagonal Element Rubber Banding Tutorial

SVG Emoji Favicon HTML Entities Tutorial

SVG Emoji Favicon Textarea Tutorial

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