Audio formats history

Introduction
The following is a brief chronology of the introduction of recorded sound formats commonly found in libraries, sound archives, and private collections. As with nearly all technological developments, there are broad periods of overlap. Audio formats rarely, if ever, either gained prominence or became obsolete instantly. For instance, discs began to outsell cylinders after 1910, but Edison continued to manufacture cylinders for home use until 1929. Wax cylinders were used for dictation into the 1950s. Lacquer instantaneous discs remained in use as a recording mediumz as late as 1970.