System for the projection of cinematographic works and digital works with sound

#(1) Field of the Invention

#This invention relates to a system for the projection of cinematographic works or digital works with sound, and more specifically for such films with at least one sound channel, the said system comprising a screen and, for the said sound channel, at least one woofer and at least one medium/treble speaker. Hereinafter, sound channel will refer only to the screen channels, not including the environment channels which, in the invention, are treated in the conventional manner.

#(2) Prior Art

#Next, as a non-exhaustive example, we will describe specific embodiments of the invention in reference to the appended diagrams, in which:

#FIG. 1 is a vertical cross-section view perpendicularly to the screen of a cinema projection room equipped with a system according to the invention;

#FIG. 2 is a front view of a system according to a first embodiment of the invention;

#FIG. 1 shows a cinema projection room delimited in the cross-section by a back wall 1 a ceiling 2 and a floor 3.

#The screen 4, which is not perforated, is disposed at a certain distance from the back wall 1. A plate 5 of a sound-absorptive material is disposed against the wall 1 on the side of the screen 4 in order to deaden sound reflections, essentially in the bass/medium frequency range.

#A woofer 6 is disposed between the screen 4 and the panel 5 towards the bottom of the screen, this speaker being able to produce sounds with a frequency that is lower than around 500 Hz.