Sound of the dialup modem explained
bialasiczekCited 3× on HN, 2017–2025
explainer · general · evergreen · 2017–2025 on HN
A short animation that pairs the sound of a dialup modem handshake with a graphic explaining what each phase of the sound means.
Shared in dial-up nostalgia threads as a way to both hear and understand the handshake.
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3 comments from Hacker News
The dial tone was prior to dialing. Upon connection, there was an audible sound from the modem handshake. Through some google searches, I came across this recording: ▶ this video
I like this explanatory graphic (after many many years of listening to the dialup sounds) - link And this version combining the graphic and the sound used to make the graphic: ▶ this video And this alternative version (h/t @Kye): link
3d spectrogram: link Animation of the picture illustrated in this article: ▶ this video If you live with someone >= 30, turn up the volume and wait for him/her to appear at the door for a nostalgia moment...