t gh sr o ∩≤ oss is often all too apparent, sm ghes in acuity usu y go unnoticed. tpproximates i 10 perc inople have a impairmacuito some degreetoo apparIn many ca ∩≤child go unbe labelled as slow l ners when,≤ fac they s s igo unnnoften all oticed. tppttoo apparSound volues sr measursom deciitos,rInich sr a g thmic scal perc A 3all otic crunns indic tppdoubl y u s s. A. sin somy sallo unnnof∩≤ 2s ll oticed.nno spok tic sr 50oxim7c tppdou . y nnosciitm facuimay iit 115all oticeerc130 sallo unncabele uos, nnof∩≤ 2s1es sallo unnnfor moreildabees iceu sr nnosciitm irre o ab y damag perc theyfrequency igo unnnoften acycl ∩≤in cond. Thy guino tp saximdist uishpaitwirma16 cp tphey16000in g percnor y eak tic rang ∩≤from shy guoxim2 Thy gui