List of film sound systems

The following is a list of film sound systems.

Explanation

 * The year shown may represent a patent or other developmental milestone rather than the first use in public.
 * Technologically identical systems may have been promoted under different trade names by different commercial entities.
 * The approximate number of films credited to each system is taken from the Internet Movie Database.

Resources

 * Sound mix list on the Internet Movie Database
 * Index of early sound films of the silent era, from The Progressive Silent Film List by Carl Bennett
 * The origins of the Firm "Tobis-Klang" The first release that used this system was the partially silent German film Melodie der Welt.