Sound film
The primary steps in the commercialization of sound cinema were taken in the mid- to late 1920s. At first, the sound films which included synchronized dialogue, known as "talking pictures", or "talkies", were exclusively shorts. The earliest feature-length movies with recorded sound included only music and effects. The first feature film originally presented as a talkie was "The Jazz Singer", released in October 1927. A major hit, it was made with Vitaphone, which was at the time the leading brand of sound-on-disc technology. Sound-on-film, however, would soon become the standard for talking pictures.
Foley (filmmaking)
What is now called Foley originated as sound effects added to live broadcasts of radio drama from radio studios around the world in the early 1920s. Phonograph recordings of the era were not of sufficient quality or flexibility to faithfully reproduce most sound effects on cue, so a sound effects person had to create all sounds for radio plays live. Jack Donovan Foley started working with Universal Studios in 1914 during the silent movie era. When Warner studios released "The Jazz Singer", its first film to include sound, Universal knew it needed to stay competitive and called for any employees who had radio experience to come forward. Foley became part of the sound crew that turned Universal's then-upcoming "silent" musical "Show Boat" into a musical. Because microphones of the time could not pick up more than dialogue, other sounds had to be added in after the film was shot. Foley and his small crew projected the film on a screen while recording a single track of audio that captured their live sound effects. Their timing had to be perfect, so that footsteps and closing doors synchronized with the actors' motions in the film. Jack Foley created sounds for films until his death in 1967. His basic methods are still used today.