By assessing your medical history and audiogram, your physician can determine your need for amplification. Should your hearing evaluation indicate that medical intervention will not improve your hearing ability, a hearing aid is usually recommended.
Fitting of Hearing Aids
A hearing aid is an instrument designed to amplify sound through a microphone, amplifier, and receiver. Sound is picked up and is transformed into electrical impulses though the microphone. These electrical impulses are carried to the amplifier where, using power from the battery, it builds up (increases) the electrical signal produced by the microphone. The receiver changes the electrical signal back into sound waves once again and directs this sound into the ear.