422
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 26 Jul 2023
422 points (92.7% liked)
No Stupid Questions
35281 readers
1236 users here now
No such thing. Ask away!
!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.
The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:
Rules (interactive)
Rule 1- All posts must be legitimate questions. All post titles must include a question.
All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.
Rule 2- Your question subject cannot be illegal or NSFW material.
Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.
Rule 3- Do not seek mental, medical and professional help here.
Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.
Rule 4- No self promotion or upvote-farming of any kind.
That's it.
Rule 5- No baiting or sealioning or promoting an agenda.
Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.
Rule 6- Regarding META posts and joke questions.
Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.
On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.
If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.
Rule 7- You can't intentionally annoy, mock, or harass other members.
If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.
Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.
Rule 8- All comments should try to stay relevant to their parent content.
Rule 9- Reposts from other platforms are not allowed.
Let everyone have their own content.
Rule 10- Majority of bots aren't allowed to participate here.
Credits
Our breathtaking icon was bestowed upon us by @Cevilia!
The greatest banner of all time: by @TheOneWithTheHair!
founded 1 year ago
MODERATORS
AAC is only 5 years younger than JPEG. Lossless music formats are about as ancient as GIF.
But requirements for audio hasn't changed that much, and overall it's a much older and thus mature technology, that there isn't much left to figure out. Consumer CD format with 16bit 44.1kHz has been around for 40 years, and you don't need much better quality than that. So there isn't much left to figure out.
But images and videos are different. 20 or 30 years ago you didn't need to commonly send 20 MPix HDR photos and HD to 4k videos over the internet. Shoehorning formats that were made for 640x480 pictures and tiny silly clipart animations just doesn't make sense, especially with all the development that's been made in that time. Newer compression techniques can help, but you can only do so much.
Err...nothing in the file format spec restricts jpg to a particular size. I would actually argue that this undermines your point -- bandwidth was incredibly limited in the 90s compared to what I see today.
Simple example: a 640x480 image is (at least) 307,200 bytes = 0.3M, so it takes at least 5.4 seconds to transmit over a 56k modem. A 4k image, same color depth, is 16000000 bytes = 15M. On a gigabit connection (what I have), that takes about 0.02 seconds.
I was taking more about quality than size in this particular comparison. In 1993 you were happy to squeeze through an image in any quality almost.
It goes hand in hand tho.
If you can compress a 50 MPix, 16-bit, high dynamic range image from a modern high-end DSLR to a reasonable size with a better algorithm and format, you'd also have an easier time squeezing a crappy 640x480 pic to an even smaller size. We just couldn't do either so well 30 years ago.
Heh, in 1993 I wasn't online at all. '97 or '98 is more like it in my case.
That's a fair point, too, better image quality for a given size. I was more focused on raw bandwidth demands.