Hacker News: manawyrm

New comment by manawyrm in "Migrating from AWS to Hetzner"

manawyrm — Fri, 17 Oct 2025 12:46:54 +0000

+1, if your threat model is actually this severe, use physical hardware with physical interlocks and physical security mechanisms.

Software/virtualization is just helpless against such a threat model.

New comment by manawyrm in "GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better"

manawyrm — Thu, 10 Apr 2025 09:35:53 +0000

It's an AMD platform, so it's the native AMD HD Audio Controller (17h/19h/1ah), with a Realtek ALC245 codec behind it. I have no idea what other hardware is involved, presumably an external Class-D amplifier IC (but I don't know as there doesn't seem to be a datasheet for the ALC245 available).

New comment by manawyrm in "GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better"

manawyrm — Thu, 10 Apr 2025 09:26:28 +0000

Awful, around 3h. It's a nice machine if you need x86 and graphics power.

I'm still keeping my M1 Pro.

New comment by manawyrm in "GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better"

manawyrm — Thu, 10 Apr 2025 09:25:47 +0000

> Is there any technical reason it couldn't be generic though? It includes 2 .wav files containing a measured, real-life calibration data for this specific laptop.

If you measure your own device (and it's frequency/impulse response) and replace those .wav files with that -- you're good to go! There's just no universal format/place to put such calibration yet, which is why I published a custom package (incl. the filter config).

I'm kinda hoping more people generate such files for their laptops and share them, maybe we can build a collection of such profiles for many laptops :)

New comment by manawyrm in "GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better"

manawyrm — Thu, 10 Apr 2025 09:23:22 +0000

Get familiar with REW and then maybe https://www.youtube.com/watch?v=5YcH7j2-L1Y and you should get pretty close results.

New comment by manawyrm in "GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better"

manawyrm — Thu, 10 Apr 2025 09:22:19 +0000

REW can generate a set of peaking/shelf equalizer filters, but why would I want to do that instead of just applying the inverse impulse response instead? It's just more work for a less perfect solution/result...

New comment by manawyrm in "GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better"

manawyrm — Thu, 10 Apr 2025 09:21:03 +0000

Exactly correct, that was my thought process while doing it. I tried it without that 300 Hz slope first of course, but that did try to murder my speakers. :)

New comment by manawyrm in "Extreme Pi Boot Optimization"

manawyrm — Tue, 03 Sep 2024 10:04:01 +0000

Same. I really didn't expect that (and thus didn't even test it at first).

Running GTA Vice City on a TP-Link Router

manawyrm — Sun, 03 Mar 2024 16:49:09 +0000

Article URL: https://kittenlabs.de/real-gaming-router/

Comments URL: https://news.ycombinator.com/item?id=39582002

Points: 63

# Comments: 2

New comment by manawyrm in "This Website is hosted on an Casio fx-9750GII Calculator"

manawyrm — Tue, 13 Jul 2021 00:03:43 +0000

lol! The IP stack does not have forwarding support, but I guess you could implement some rudimentary loopback announcement support.

New comment by manawyrm in "A Linux driver to connect PATA/IDE directly to GPIO"

manawyrm — Sat, 08 Aug 2020 20:27:52 +0000

Depends on what you want to do :) If you just want to read/write sectors of 512 bytes at a time, it's pretty easy to implement even on a simple MCU.

There's a couple of registers which need to be set: https://wiki.osdev.org/ATA_PIO_Mode and you can then just read/write the data from the parallel lines.

Here's a similar project using an ATmega32: https://github.com/zwostein/idetrol (i used this code, ported to ARM to check my hardware before I wrote the kerneldriver)