Anatomy of the DialUp-Sound

Alexis Madrigal war so geflasht vom Museum of Endangered Sounds - einer Website, auf der Sounds alter Gadgets gesammelt werden, dass er auf Twitter nach Details zum DialUp-Sound alter Modems gefragt hat und daraus hat er obiges Soundcloud-Item gebastelt.

This is a choreographed sequence that allowed these digital devices to piggyback on an analog telephone network. "A phone line carries only the small range of frequencies in which most human conversation takes place: about 300 to 3,300 hertz," Glenn Fleishman explained in the Times back in 1998. "The modem works within these limits in creating sound waves to carry data across phone lines." What you're hearing is the way 20th century technology tunneled through a 19th century network; what you're hearing is how a network designed to send the noises made by your muscles as they pushed around air came to transmit anything, or the almost-anything that can be coded in 0s and 1s.

The Mechanics and Meaning of That Ol' Dial-Up Modem Sound