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Why is this guarantee important? Because many distributed audio systems are designed using simplified "Rules of Thumb," which by nature are inexacting and unsympathetic to application variables often encountered.
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Ignoring these variables often results in: unintelligible voice announcements, spotty coverage of background music, customer and tenant complaints, and eventual "upgrading" of the system to function to the originally intended purpose.
Traditional sound system design equations are complex and misunderstood by many people in and out of the audio industry. Because of this, certain "Rules of Thumb" have become the staple design methodology of many audio and electrical professionals. Here's an example of how most distributed audio designs are calculated with conventional loudspeakers ...
Center-to-center spacing of conventional loudspeakers should be twice the distance from ear to ceiling for acceptable commercial quality. This formula can be written as
For example, with an average ear height of five feet in a room with eight foot ceilings, spacing of loudspeakers should be six feet center-to-center. Here's why these "Rules of Thumb" don't always apply ... |
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