The decrease of the acoustic effectiveness could be explained by the fact that while moving away from the noise barrier, the effect of the diffraction of low frequency sound waves over the edges of the screen becomes more prominent, thus decreasing the acoustic shadow
zone of noise damping.
Mr Ian Johnson, consultant surgeon at the Freeman Hospital, Newcastle and a member of the Advisory Group for Single Sided Deafness says: "In the majority of patients with Single Sided Deafness there is a gross disability because of the loss of the stereo effect of hearing leaving the patient with an acoustic shadow
along with problems of identifying where sound is coming from.
Entertainment was provided by Michael and Leigh Ann Carley of Acoustic Shadow
and Rain Jaudon and Cheri Salvetti of Rhythm and Rain.
Millili stated, "Regardless of observer experience in burn evaluation, obliteration of the dermal/fat interface and widening of the dermal acoustic shadow
provides reliable markers of deep thermal injury.