01From Recorded Sound to Radio
Sound travels across time and distance.
Historical referencesEdison phonograph (1877) · Early radio
Listening once required being near a sound source. Nineteenth-century recording experiments, the phonograph’s recording and playback in 1877, and later radio broadcasting changed when and where people could listen. Recorded sound preserved memories; broadcasting let distant listeners share music and news. Together, recording, transmission and reception extended listening across time and distance. This was the technological world into which B&O was founded in 1925.
A Baiyin reflectionFind opportunities by asking what limits the way people listen.






























