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 21, 2012
If you have a chance, you should read my article about sharing tooth brushes. I compare the sharing of microphones like sharing tooth brushes. In the fall when it is Flue season, many performer pass on their cold to other performers by just simply sharing their microphones. We don’t clean our microphones and the microphones are not made to be cleaned either. Read the rest here. Update includes suggestions for dealing Covid-19
Updated March 2020 microphones-are-hazardous-to-your-health
Posted in Church Sound Systems | Tagged: Audio Technica, CAD. Audio, Church, Church Sound Systems, Covid-19, digital mixers, EQ. Equalizer, Hearing, hearing loss, JdB Sound Acoustics, Microphones, pipe organ. worship, Shure, Signal Processor, Sound, Sound System | Comments Off on Microphones can be a health hazardous
Welcome to the world of Church Acoustics 