Which 1940 film was the first commercial film to be shown in stereophonic sound?
Stereophonic sound Andy Hardy". Walt Disney began experimenting with multi-channel sound in the early 1930s as noted above. The first commercial motion picture to be exhibited with stereophonic sound was Walt Disney's "Fantasia", released in November 1940, for which a specialized sound process (Fantasound) was developed. As in the Carnegie Hall demonstrations six months earlier, Fantasound used a separate film containing four optical sound tracks. Three of the tracks were used to carry left, center and right audio, while the fourth track carried three tones which individually controlled the volume level of the other three. The film was not a financial success,
Stereophonic sound which, along with "Orchestra Wives", feature the only stereophonic recordings of the Glenn Miller Orchestra as it was during its heyday of the Swing Era. Motion picture theatres, however, are where the real introduction of stereophonic sound to the public occurred. Amid great fanfare, Stereo sound was officially proven commercially viable for the public on September 30, 1952 with the release of a Cinerama demonstration film by Lowell Thomas and Mike Todd titled "This is Cinerama". The format was a spectacular widescreen process featuring three separate 35mm motion picture films (plus a separate sound film) running in synchronization with one