1910-1919 

Edison's Diamond Disk

1912   Edison introduces celluloid blue Amberol cylinders with a playing time of 4 minutes. The new cylinders had a low surface noise that resulted in an improvement in acoustic quality over that of the discs.

1912   The 'Audion' Vacuum-tube amplifier is invented by Lee de Forest.

1913   Edison releases his Diamond-Disc players and recordings.

1916   Theodore Case starts to develop a sound-on-film recording system for motion pictures.

1917   The first "Jazz" record "Livery Stable Blues" is recorded by the ODJB Original Dixieland Jass Band from New Orleans.

1918   First wartime sound recording of gas shell bombardment.

1919   Invention of the Theremin, by Leon Theremin