GERMANISCH

Tbf, 8! is a big number.

Oder fährt selbst mit Diesel. Bei mir in der Gegend ist nichts elektrifiziert. Aber zumindest gibt es ein Dampflokmuseum in der Nähe. Vielleicht verleihen die die ein oder andere Lok.

Einfach „ein bisschen“ das E-Bike frisieren. Wird schon klappen.

manul

Danke, das ist sehr aufschlussreich.

Wenn du zukünftig Redditlinks vermeiden möchtest, gäbe es diverse Redlib Instanzen Obwohl es dort manchmal Probleme mit Bildern kommen kann, funktioniert es sonst recht gut.

Feels like everything is. Might as well describe every app by it‘s (now) secondary function.

The (effective) low-pass is only applied after the signals have been multiplied. This filters out the signal with the same frequency (and phase) as the reference. I have a more detailed comment on how this works in response to another person here in this comment section. This is useful for applications, where the signal can be drowned out by the noise, but you know what to look for, and where the phase information is important. (e. g. a DC signal that is chopped at a selected frequency or an AM-signal).

The device, I‘m referencing here is called a lock-in amplifier. When you try to measure an extremly noisy signal without all the noise, you can use one of these. If you‘re dealing with a DC-signal, you can chop it at the reference frequency.

Here‘s a great write up on the priciples of this technique: https://www.zhinst.com/sites/default/files/documents/2025-10/zi_whitepaper_principles_of_lock-in_detection.pdf

But TLDR: After the reference signal is adjusted to have same frequency (and therefore constant phase difference), you get a signal that oscillates with ω_\text{in} - ω_\text{ref} and ω_\text{in} + ω_\text{ref}. Crucially, in the case, where ω_\text{in} = ω_\text{ref} the term becomes constant U(t) = U_0 |e^{i \theta}| while the other terms from other frequency components (Fourier-series) still oscillate. This is where the averaging comes in. An oscillating signal will average (roughly) 0 over a long enough duration. The output is then the amplitude of the desired signal without all the noise.

Oh no… I just noticed an additional “ whoever finds it, can keep it (or make their own perfect version).

manul

Well… it‘s also killing humans, so… plan worked ig?

manuls

And most of it will never even be used up.

I had an AUR package once, that tried to install the entire fucking chromium repo.

Irgendwie hab ich nicht mit IKEA Regalen in einem Tresorraum gerechnet.

manul

manul

„Das Weihnachtsalbum“ von „Deine Freunde“ kann ich sehr empfehlen und für die, die humorvolles Metal mögen, wäre vielleicht „The flesh eating rollerskate rides again“ von „Psychostick“ etwas.

manul