this post was submitted on 11 Nov 2024
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it's technically not just a 50hz flat tone, it's quite a complex sound for what should be a sinewave. Soothing nonetheless though.
I'm too lazy to go plot it in a spectrogram or something, maybe someone else will do it lol.
Huh. I didn't really think through what the tone would actually be, I just assumed it was the same as Tokyo's power grid. I put on a sample of the power grid noise from the show, and held my headphones up to my phone's mic to get a peek at the spectrogram:
Buncha spikes at every multiple of 120, fading out around 1560hz
Interesting note, the very faint lone 120hz spike is just the ambient noise of my room, when I'm not holding my headphones up to the mic. New canon fact: SEL takes place in an alternate timeline where Tokyo (if not all of Eastern Japan) got 60hz power