Why dBG, dBC, and dBA “hide” the true “dose” of infrasound below 10 Hz

This post first appeared on windturbinesyndrome.com The actual level of infrasound in this figure at 1 Hz is above 90 dB. Measuring infrasound with dBG at 1 Hz gives a level of only 50 dB. Thus 40 dB is “hidden.” Forty dB is a huge amount of sound energy, which will not be heard at … Continue reading Why dBG, dBC, and dBA “hide” the true “dose” of infrasound below 10 Hz

A substantial degree of technical incompetence – or intended to mislead the community

26th February 2013 From Steven E. Cooper, The Acoustic Group PEER REVIEW COMMENTS SOUTH AUSTRALIAN EPA AND RESONATE ACOUSTICS “INFRASOUND LEVELS NEAR WINDFARMS AND IN OTHER ENVIRONMENTS” Issued by the South Australian EPA, dated January 2013 Various wind developers and industry lobby groups both in Australia and around the world have been claiming that the … Continue reading A substantial degree of technical incompetence – or intended to mislead the community