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“There are, of course, several factors that keep this from being too simple. First, if there is already absorption on the wall that will be covered or removed, the panels will not change the acoustical characteristics of the room by their full rated value as they would over hard plaster. Second, if the reverberation is not particularly high and clarity is a problem, the answer may be diffusion of sound, rather than absorption. The difference is that while absorption reduces reverberation by controlling reflected sound, diffusion lowers the perceived sound level by scattering (diffusing) sound over a wide area. Diffusion can help achieve a space that is not too dry for the choir, nor too reverberant for the minister's message. (A full discussion of diffusion is reserved for another article.) A third consideration is that absorption characteristics depend on the sound frequency. Some acoustical problems must be resolved by addressing absorption or diffusion of selected frequencies. ”

Free movies on web One common use of acoustical panels is to eliminate stray reflections from stage monitors, especially where feedback is a problem. They are also used on side walls to avoid slap-back and side-to-side flutters. Panels prevent coloration of the main sound source by eliminating reflections that recombine with the direct sound to reinforce or cancel certain frequencies. Without reflection control, the sound heard by the audience can be very different than that intended.

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  3. AZURUS MOVIES Before building a new worship space, it is vital to involve an acoustician along with the architect. In the acoustics world, there is a saying: "Architects have vision; but you don't hear with your eyes." Thinking about acoustics first rather than last will allow the installed sound system to be effective with less signal processing (and the attendant distortion) and at less cost. It will certainly be more economical than replacing or upgrading the sound system in attempts to fix acoustical problems.
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