Hacker News: rokweom

New comment by rokweom in "AirPods Max 2"

rokweom — Mon, 16 Mar 2026 22:04:21 +0000

but sounds objectively better to my ears

Subjectively. Objectively, there's no audible difference between lossy and lossless (at usual bitrates).

New comment by rokweom in "Fedora 44 on the Raspberry Pi 5"

rokweom — Sun, 15 Mar 2026 11:08:21 +0000

Few months ago it was possible to get Intel N100 (i5-6400 performance at much lower power) based mini PC with 8GB RAM and 256GB SSD for 100-120 USD on sale. Unfortunately, 'rampocalypse' happened.

New comment by rokweom in "The 'Toy Story' You Remember"

rokweom — Tue, 11 Nov 2025 17:07:56 +0000

Doesn't wet scanning "automatically" get rid of the dust and scratches issue?

New comment by rokweom in "AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025"

rokweom — Sat, 11 Oct 2025 14:21:08 +0000

Funny that they're marketing the supposed advantages of higher bitrates using pictures with altered contrast and saturation lol. I would expect the target audience to be somewhat affluent in the actual benefits? Then again, I wouldn't expect somebody like Scorsese to be a video compression nerd.

Also the whole "you can hear more with lossless audio" is just straight up a lie.

New comment by rokweom in "AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025"

rokweom — Sat, 11 Oct 2025 14:09:37 +0000

Piracy enables you to do things like debanding on playback, or more advanced video filtering to remove other compression issues.

New comment by rokweom in "Framework's first desktop is a strange–but unique–mini ITX gaming PC"

rokweom — Tue, 25 Feb 2025 22:29:15 +0000

Apparently this is due to signal integrity. AMD says swappable RAM is not possible. Source: LinusTechTips video.

New comment by rokweom in "What's that touchscreen in my room?"

rokweom — Sun, 21 Jan 2024 09:56:58 +0000

Just be careful with that, measuring mains is a bad idea with most oscilloscopes. The ground pin is usually connected to mains earth, so if you're not careful, you might create a short and blow up your scope. If you have one of these battery powered ones, it'll be fine, but the mains powedered ones are usually a no-no.

New comment by rokweom in "What's that touchscreen in my room?"

rokweom — Sat, 20 Jan 2024 12:58:44 +0000

In general, people have the wrong idea about how fuses work. They're not supposed to blow at their rated current, they're supposed to withstand it indefinitely, and only blow at much higher currents. Look up any datasheet from a well established manufacturer and see for yourself (like this one from littelfuse: https://littelfuse.com/products/fuses/cartridge-fuses/5x20mm... )

New comment by rokweom in "FFmpeg lands CLI multi-threading as its "most complex refactoring" in decades"

rokweom — Tue, 12 Dec 2023 17:28:44 +0000

There's already software that does this: https://github.com/master-of-zen/Av1an Encoding this way should indeed improve quality slightly. Whether that is actually noticeable/measurable... I'm not sure.

New comment by rokweom in "Bluetooth stack modifications to improve audio quality on headphones without AA (2019)"

rokweom — Sun, 26 Nov 2023 02:42:27 +0000

It's gone from newer versions of Lineage, unfortunately. Right now the whole thing is basically forgotten.

New comment by rokweom in "Japan’s silent movie culture is still going"

rokweom — Sat, 30 Sep 2023 13:00:01 +0000

Making good 'visual storytelling' films requires some real talent, a deep understanding of the strengths of the film as a medium, and a lot of resources. In comparison, a 'talking heads' movie can be made with a few actors sitting in a single room without much regard for cinematography (hell, event a single actor sitting in a car may suffice, like in "Locke"). That's why there has been so few great 'visual storytellers' like Keaton and Chaplin.

New comment by rokweom in "Request: Re-open JPEG XL issue"

rokweom — Tue, 08 Aug 2023 00:48:40 +0000

If we consider dithering cheating, then 10 bit without dither is also not enough for banding-free 4K, no matter the color space.

New comment by rokweom in "Request: Re-open JPEG XL issue"

rokweom — Mon, 07 Aug 2023 16:09:49 +0000

With proper dithering, I would guess even rec. 2020 would be doable.

New comment by rokweom in "Apple Vision Pro – Why It May Be Lousy for Watching Movies on a Plane"

rokweom — Thu, 22 Jun 2023 14:31:26 +0000

">It may shock many VR game players that want 120+ degree FOVs, but SMTPE, which sets the recommendations for movie theaters, says the optimal viewing angle for HDTV is only 30°"

The reason VR enthusiasts want wide FOVs is not because they want to watch movies stretched to 120°. Nobody does that. They want wide FOVs because even at relatively high FOV, like the 106 of Quest Pro, the edges of the display are still easily visible and the image does not fill eye's FOV fully. Yes, the resolution of what we can see towards the edges of our vision are much lower than what we can see in the center, but it's about getting rid of the visible boundry that messes with immersion.

New comment by rokweom in "The magic of DC-DC voltage conversion"

rokweom — Sun, 23 Apr 2023 11:23:16 +0000

Nowadays most basic LED bulbs just put the LEDs in series to get the combined voltage drop close to the rectified and filtered mains voltage, and a linear regulator takes care of the rest. This is cheaper and simpler than other methods mentioned by other users (switching or capacitive dropper). Here's a nice video with a schematic and even a way to hack them to lower the power: https://youtu.be/5HTa2jVi_rc (feel free to skip around, no need to watch the whole video to understand it)

New comment by rokweom in "Why are movies so dark these days?"

rokweom — Sat, 01 Apr 2023 12:32:47 +0000

If you're watching TV with shades open, you should adjust your gamma settings. The standard 2.2/2.4 gamma is meant for watching in a dark room.

New comment by rokweom in "Why are movies so dark these days?"

rokweom — Sat, 01 Apr 2023 12:06:20 +0000

Correct me if I'm wrong, but I'm pretty sure film has a higher dynamic range than digital SDR video? From a quick google search, 13 stops for film vs 6 stops for SDR. Obviously the stock that was used for final delivery to theaters was much worse than the stock that movies were shot on, but still.

New comment by rokweom in "Nokia launches DIY repairable budget Android phone"

rokweom — Sun, 26 Feb 2023 11:08:12 +0000

Because LCD connectors require space. On phones where the bottom bezel is very small, the display is actually bent.

New comment by rokweom in "Nokia launches DIY repairable budget Android phone"

rokweom — Sun, 26 Feb 2023 11:04:06 +0000

My 100$ phone from 2017 - Xiaomi Redmi 4X - had the same level of repairability: just unclip the back cover and you have access to internals. Replacing the battery was a matter of unscrewing the battery connector. How exactly is this new?

New comment by rokweom in "Google and Mozilla are working on iOS browsers that aren't based on WebKit"

rokweom — Wed, 08 Feb 2023 10:16:24 +0000

How about - hear me out - have an option to enable or disable it? Crazy idea, I know.

(I'm not aiming that comment at you, but rather at developers making software less and less configurable)