Posted by jdbsound on October 3, 2023
Performance Space Acoustics is fraught with many myths, misinformation, and limitations. It is pure science, but its complexity makes it appear part of the mystical arts, brainwashing most into believing good acoustics is not possible or repeatable. What could be further from the truth? There are rules for acoustics. Follow them, and success is assured every time. Break any rule, and the results create an endless and costly cycle of experiments to correct the error. It doesn’t have to be that way, but it is human nature for people to believe that the rules don’t apply to them. The burning question is, which is greater, the laws of physics or human nature? The answer is simple. The laws of nature cannot be broken, and no amount of human cleverness can change that.
It has often been said and proven that acoustical problems come in layers. The most common and misunderstood layer has to do with excess bass. This layer is often misunderstood in acoustical measurements due to the sound-masking effects of bass energy. Most experts are not trained…
Download the rest of the document here. The New Acoustical Toolbox.
Posted in Church Acoustics | Tagged: acoustical management systems, Architect, Bible, Church acoustics, Church Sound Systems, Grace Baptist Church, JdB Sound Acoustics, John MacArthur, room acoustics, Salvation, Sound System, Toolbox, Voddie Baucham | Comments Off on A New Acoustical Tool for the Acoustic ToolBox.
Posted by jdbsound on May 22, 2012
Walls are amplifiers of sound.
Outdoors – when you double the energy with amplifiers or speakers the sound levels increases 3dB.
Indoors – when you double the energy with amplifiers or speakers the sound level of certain frequencies can increase up to 9dB or cancel the sound 100%.
Example Below:

Before acoustical treatment, there would be 1dB loss at 10 ft and 2dB loss at 40 ft. without the sound system.
After acoustical treatment, there is 4dB loss at 10ft and 8dB loss at 40 ft. without the sound system. Also, intelligibility changed from 79% at 40 ft to 92% after acoustical changes. When you add the sound system the coverage with +/-3dB

This was in the middle of the acoustical transformation
Posted in Church Acoustics, Photos of Church Projects | Tagged: Bible, Church, Church Sound Systems, concrete, diffusers, drywall, Former Catholic Church, glass diffusers, Holy, JdB Sound Acoustics, padding, pews, pipe organ. worship, Rescued, room acoustics, Salvation, scattering | Comments Off on Natural Acoustical Amplifiers