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.
Vertigo (film)
In 1996, the film was given a lengthy and controversial restoration by Robert A. Harris and James C. Katz and re-released to theaters. The new print featured restored color and newly created audio, using modern sound effects mixed in DTS digital surround sound. In October 1996, the restored "Vertigo" premiered at the Castro Theatre in San Francisco, with Kim Novak and Patricia Hitchcock in person. At this screening, the film was exhibited for the first time in DTS and 70mm, a format with a similar frame size to the VistaVision system in which it was originally shot. When restoring the sound, Harris and Katz wanted to stay as close as possible to the original, and had access to the original music recordings that had been stored in the vaults at Paramount. However, as the project demanded a new 6-channel DTS stereo soundtrack, it was necessary to re-record some sound effects using the Foley process. The soundtrack was remixed at the Alfred Hitchcock Theatre at Universal Studios. Aware that the film had a considerable following, the restoration team knew that they were under particular pressure to restore the film as accurately as possible. To achieve this, they used Hitchcock's original dubbing notes for guidance of how the director wanted the film to sound in 1958. Harris and Katz sometimes added extra sound effects to camouflage defects in the old soundtrack ("hisses, pops, and bangs"); in particular they added extra seagull cries and a foghorn to the scene at Cypress Point. The new mix has also been accused of putting too much emphasis on the score at the expense of the sound effects.