this post was submitted on 10 May 2025
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Science Memes

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53
This not a Meme but the spectral view of "Barcode Brothers - Tele" a song from 2008, how many DTMF code tones can you find? (sh.itjust.works)
submitted 1 day ago by einfach_orangensaft@sh.itjust.works to c/science_memes@mander.xyz
7 comments fedilink hide all child comments
 

spoilerthe first number dialed is 225084667

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[–] x00z@lemmy.world 3 points 11 hours ago (1 children)

Here's a fun one:

Aphex Twin / ΔMi−1 = −∂Σn=1NDi[n][Σj∈C{i}Fji[n − 1] + Fexti[[n−1]]

https://youtu.be/wSYAZnQmffg?t=324

[–] purplemonkeymad@programming.dev 1 points 11 hours ago

Iirc, if you use a non-linear scale, it comes out properly as his face.

[–] zea_64@lemmy.blahaj.zone 2 points 12 hours ago

100 billion transistors

[–] pebbles@sh.itjust.works 9 points 1 day ago

I love being on Lemmy. This is exactly why I'm on Lemmy.

[–] EfreetSK@lemmy.world 15 points 1 day ago (1 children)

The what?

Ok I list some useful links I needed to lookup

Barcode Brothers - Tele

https://youtu.be/jJ0CiTxMJl8

DTMF

https://en.wikipedia.org/wiki/DTMF_signaling

[–] einfach_orangensaft@sh.itjust.works 11 points 1 day ago

Here have some more

DTMF (with examples): https://www.sigidwiki.com/wiki/Dual_Tone_Multi_Frequency_(DTMF)

Decoder options: https://github.com/EliasOenal/multimon-ng https://www.w1hkj.org/files/fldigi/

Or decode by hand using a Spectral display, in some cases other audio effects can negatively impact the precision of automated detection.

[–] bleistift2@sopuli.xyz 2 points 1 day ago

All of them.