Electric Sounds brings to vivid life an era when innovations in the production, recording, and transmission of sound revolutionized a number of different media, especially the radio, the phonograph, and the cinema.

The 1920s and 1930s marked some of the most important developments in the history of the American mass media: the film industry's conversion to synchronous sound, the rise of radio networks and advertising-supported broadcasting, the establishment of a federal regulatory framework on which U.S. communications policy continues to be based, the development of several...