Lead to permanent hearing a loss. Learning disabilities are ill effects of loud noises among children. Research shows the sound levels in Surat. Sound above 85 DB is very harmful. Normal and basic conversation is about 60 dB and a rock concert 120 db. Loud noise affects general health too. Beside causing hearing loss. The researchers want to know, is hearing most impairment is worse in these noise cities. Clear from the above that noise pollution in cities is on the directly connected rates of hearing loss. Aids help can hear many of these people restore their hearing. Trained audiologists and ent specialists who are dedicated to treating your problems related to hearing loss. Hearing professionals will listen carefully describe your hearing changes over time, and give you a free hearing test to determine areas in you need assistance.