Conserve the sound« is an online museum for vanishing and endangered sounds. The sound of a dial telephone, a walkman, a analog typewriter, a pay phone, a 56k modem, a nuclear power plant or even a cell phone keypad are partially already gone or are about to disappear from our daily life.

Accompanying the archive people are interviewed and give an insight in to the world of disappearing sounds.

Source: https://www.conservethesound.de

While the site is mostly in German, it is fairly easy to navigate. The interviews are also in German, but they do have English subtitles. And if you are German, than none of these caveats apply to you!