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
Posted by jdbsound on May 22, 2012
The ear can hear distortion before it shows up on the meters of most mixers including studio and digital mixers. When the room acoustics are good, you can hear the distortion up to 6dB sooner than what the meters show.
Posted in Church Acoustics | Tagged: Bible, digital mixers, Hearing, hearing loss, Pulpit, room acoustics, standing wave, walls | Comments Off on The skill of the average human ear
Welcome to the world of Church Acoustics 