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GPD Pocket 4 Speaker DSP: Configuring PipeWire so laptop speakers sound better

(kittenlabs.de)
259 points zdw | 1 comments | 09 Apr 25 18:07 UTC | HN request time: 0s | source
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OJFord ◴[10 Apr 25 01:08 UTC] No.43639659[source]▶
What a rollercoaster, not having heard of the GPD Pocket 4 before now, I went through:

- cool!

- oh but there's no way this isn't hard and somewhat manual, something to tune

- wait what, end of blog, that's it, just install a package?

- oh no this is the Asahi announcement, so it's Mac only? [follows link to GitHub]

- no! This is separate, it really is just install a package!

- oh, hang on, GPD Pocket 4 is the laptop shown in image, it's for that only

No slight against the author, nothing wrong with that, just a rollercoaster to follow!

Is there any technical reason it couldn't be generic though? Surely environment has almost as much impact as the hardware anyway, wouldn't you ideally have it sample and adjust every so often on a systemd timer or whatever?

replies(2): >>43639929 #>>43642228 #
1. manawyrm ◴[10 Apr 25 09:25 UTC] No.43642228[source]▶
> 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 :)