vtuber?
Ask HN: What rabbit hole(s) did you dive into recently?
311–320 of 443 posts
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#312Earlier quoted context omitted.
Question since you are probably knowledge-able about it right now. > Another observation: lots of people create PDF's at print-quality pixel density that's useless for screens, and greatly increases rendering latency. Is this relevant to text in the PDF? I would assume text is vectorized, meaning resolution is not relevant until you _actually_ print it? Or is it just relevant to rasterized content like embedded image…
Your understanding's right: PDF's that are text + fonts are easy and fast. I'm concerned about the other kind, that's scanned pages. Any sheet music from Petrucci / imslp.org for one example. That kind is a sequence of raster images, stored in compressed-image formats which most people aren't familiar with, because they're specialized to bi-level (1-bit, black and white) images. A separate class from photo-type image…
Personally I have the impression that CCITT group 4 compressed PDFs are displayed very quickly, unless they are scanned at 3000 DPI... Can't say the same for JBIG2 or JPEG/JPEG2000 based ones.
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#313PDF files, and why the heck they are so slow to read. Hours upon hours of perf(1) and fiddling with ugly things in C. My main takeaway is everyone in the world is doing things HORRIBLY wrong and there's no way to stop them. (Digression: did you know libpng, the one everyone uses, is not supposed to be an optimized production library—rather it's a reference implementation? It's almost completely unoptimized, no really…
is there any ffmpeg like command line program for pdfs? Creating, Appending/Removing pages, viewer, etc?
For appending, removing, merging pages, there’s pdftk: https://www.pdflabs.com/tools/pdftk-server/
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#314I’ve spent a half months salary on literature auctions. French, latin, english, swedish, 1700s and up. History, memoires, philosophy, religion, science and math, poetry, stories. Art as well, happened to buy prints of Girodet and Dürer that I enjoy very much. Did some duolingo for french just recently and already did for latin two years ago. It’s difficult to read them but broad context is enough for an overview unde…
Nice. When cash was more prevalent in my life (ie before kids) I got into buying 1700s and earlier books on eBay. Magnificent things. I couldn’t ever part with them, users shouldn’t be dealers!
I love how many absolutely insanely interesting books from that period aren’t affordable. I have a copy of the book in which Bishop Ussher put forward his theory that the earth was made on "the entrance of the night preceding the 23rd day of October... the year before Christ 4004"; that is, around 6 pm on 22 October 4004 BC.
I use as a cautionary example of data driven analysis. It was all from lineages in the bible and ages mentioned there. Seemed like a solid methodology at the time!
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#315I found my two old mechanical PC keyboards from the mid 80's in the garage, took them in and cleaned them. Bought some VIAL adaptors for them and new alps keycaps for one of them. Ended up reading about mechanical keyboard history, keycaps, VIAL/VIA/QMK, etc. Also bought an old IBM model m keyboard yesterday.
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#316I fell into the rabbit hole of delinking programs back into object files. Long story short, I was inspired by the Super Mario 64 and REDRIVER2 decompilation projects and wanted to do one. I picked a PlayStation video game from my childhood, started Ghidra and then I quickly realized that the game code's a complete mess. It's bad enough that I don't see myself ever finishing this project unless I can somehow divide-an…
I am not sure if I follow correctly. Please clarify the following for me. Have you succeeded in making a tool which undoes the work of the linker?
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#317How to improve one's speaking voice. Mine is tiny, no strength, no quality, monotone. Found something called "kharaj ka riyaz" and practiced it for a few weeks and voice quality and strength improved. Then quality went down and my voice is not irritable and scratchy. I hope it recovers.
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#318For me, it's DIY audio. The thing about diy'ing audio (primarily speakers but also amps, DACs etc) is that you can get top of the line performance for a fraction of the market price. A $50,000 speaker setup that would bring tears to your eyes could be made for perhaps $5000. A DIY $500 kit can perform similar to a $2-3000 set of speakers. Open source amps with gerber files on github are amazing. The biggest reason it…
All I want is a small stereo speaker to replace my awful monitor speakers. Like a small soundbar that doesn't suck. I might dive into this rabbit hole
Check out this speaker kit call C-Notes. They're really well rated and a pretty simple/budget friendly option, especially if you're okay applying some eq on them. Paul Carmody has many good designs.
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#319For me, it's DIY audio. The thing about diy'ing audio (primarily speakers but also amps, DACs etc) is that you can get top of the line performance for a fraction of the market price. A $50,000 speaker setup that would bring tears to your eyes could be made for perhaps $5000. A DIY $500 kit can perform similar to a $2-3000 set of speakers. Open source amps with gerber files on github are amazing. The biggest reason it…
This for me, for quite a while now. I've built my own speakers, microphones and now I'm in a DIY synth module hole.
Latest at https://fourays.lon.dev
I've just got to the point where I think I know what the module is going to be, but last night found out that PCB manufacture puts additional constraints on the PCB design, so I have to go back and re-do a lot of it, including probably dropping some features to make it simpler. The learning never ends.
Re: Ask HN: What rabbit hole(s) did you dive into recently?
#320For me, it's DIY audio. The thing about diy'ing audio (primarily speakers but also amps, DACs etc) is that you can get top of the line performance for a fraction of the market price. A $50,000 speaker setup that would bring tears to your eyes could be made for perhaps $5000. A DIY $500 kit can perform similar to a $2-3000 set of speakers. Open source amps with gerber files on github are amazing. The biggest reason it…
How hard to make something better than my hs8’s? I want an upgrade but next tier is like 3k
How much are you willing to spend? Troels Gravesen has many builds on his website and I'm sure some/many of them would be better than the HS8s. You could also search for "hs8" on diyaudio.com and see posts of people in a similar position.