Basic principles of projection

Part three : Sound systems

[Klangfilm optical sound head] As techniques develop and get more sophisticated the quality of projection and the sound reproduction improves. In a certain way one could say that history is repeating itself. Cinema sound was introduced in the '20s by means of a long play record, while todays newest sound carrier is again an off-line device : the CD. Different systems are used for synchronizing sound and motion. The latest technique provides the best quality and is called "Digital sound".
Famous KLANGFILM EUROPE optical sound head On this page an overview of the systems available (or known to me)

For the Dutch fans : Do you recognize this soundtrack ( 170kb)?
In chronological order :
  1. Silent movies
  2. Gramophone
  3. Synchrone sound, sound track printed of film strip next to image

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