None of that sounds related to the format?

- A text to speech engine should work better with the original html structure where it sees bold tags, headings, and full sentences ra-

ther than broken-off ones

- Keeping PDFs organised, how would that differ from keeping any other filetype organised? I don't understand what difference you, "by implication", attribute to a file ending in .html or .pdf for being able to handle them en masse. If anything, searching across them will be vastly easier for software (self-written or third-party) and more reliable because it's all plain text

- Text and audio rendering syncing, I have no experience with but that doesn't sound like it ought to fundamentally work for a display format and not for the source text format. Of course, the software has to have support for this format (and otherwise it's trivial to pdfify a html but vice versa is nearly impossible)

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ratelimitsteve 3 hours ago | parent | next [-]

>and full sentences ra- > >ther than broken-off ones

This and trying to read the header/footer are the most annoying parts of pdf to audio apps. At least some apps will let you set a margin outside of which text is ignored, so every page doesn't start with the book title, author's name and chapter title and end with the page number.

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user3939382 11 hours ago | parent | prev | next [-]

HTML could do everything PDF does in theory but it doesn’t in practice because the tooling doesn’t exist.

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crazygringo 10 hours ago | parent [-]

My exercise bike can play Doom on its display in theory.

Theory doesn't matter here, tooling and standards do. And PDF doesn't just have the tooling for highlighting and annotations, it has the standards for them so that tools support them in an interoperable way. A highlight made with one tool can be removed with another, without altering the underlying content.

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ratelimitsteve 9 hours ago | parent [-]

I would love an exercise bike that runs doom. Maybe link my movement speed in-game to how fast I pedal, with a joystick on one of the handlebars to move and a couple buttons on the other one to shoot and reload. So far every exercise bike game is just bike race, which I'll admit is a close fit for the existing hardware and probably the first idea I'd have too but it gets boring after a while.

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Towaway69 8 hours ago | parent [-]

Had the same idea - not with doom - but with a Quest 3D and watching videos of me riding in the summer. First make a film using an 3D camera (something like a Insta360) and then view that on the Quest in winter while riding exercise bike.

Video speed would sync to the exercise bike speed, giving a feeling of reality.

The core problem is that sweating inside a Quest isn't a good idea ...

	▲	ratelimitsteve 3 hours ago \| parent [-]
		I did thrill of the fight a lot back during the pandemic. sweating in a quest isn't ideal, but it's not unmanageable for brief periods of time (15-30 minutes). The only real problem is that the lenses can get sweaty or foggy and all of a sudden I go from punching faces and dodging fists to punching at blurs and failing to dodge other blurs. Maybe instead of a quest you just display video to a screen? When I was using a hotel fitness center they had a peloton and that seems to be something you can do with those. It was a couple years back and I recall the video being loosely if at all tied to the speed you pedal at, but it was more fun than just looking at a wall while I pretend to go somewhere.

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ratelimitsteve 9 hours ago | parent | prev [-]

maybe html can do all of these and it will only cost me the time it takes to build the app, but right now PDF does all of those things for me, here today in my pocket, for $15. Which is nice.

I'd love to see a text to speech engine that pronounces formatting but I think it might be more complicated than learning to pronounce something boldly. Am I yelling? Am I keeping my voice low but adding intensity? Can you automate answering that question in a way that's mostly correct most of the time? If something is in italics am I whispering, stage whispering, emphasizing or merely saying the title of an existing work out loud? It's a fundamental abuse of a text formatting engine to try to use it for speech formatting, you either have to use the existing tags for things they were never intended for or you have to start adding tags like <slywhisper> and <scream emotion="angry"> vs <scream emotion="excited">. That being said, an html-independent form of emotional text annotation might actually be a good idea as the inevitability of synthesized human voices being a part of our daily lives takes hold.

I find PDFs easier to organize than HTML because HTML is any number of files referencing each other across a directory structure that can have any size or shape, and a PDF is a single file. If I'm searching my library for Bob Wilson, I want his books to show up and I want them to have his picture in them if that's how the book was published but I don't want Bob_Wilson.jpeg to show up as a result. I could automate print to PDF from html or use the tool someone else posted in order to condense my saved HTMLs to single files but that's more processing time and effort in order to get what I already have from a PDF

Syncing position across HTML files may be doable, but syncing position across PDFs is done. You're absolutely right that that has nothing to do with the format but the (implied) question I was answering when I brought it up was why I would sometimes want one and other times want the other. That's why.

Finally, and probably the only one that really matters inasmuch as all the other reasons can be coded around but this one cant: the places I get documents distribute them in PDF, mobi and epub but almost never in HTML