Childen's Hospital Boston
International Visitorsdotted lineRequest Appointmentdotted lineDirections
 advanced search
About Us Find a Specialist Locations Careers Press Room Giving To
Clinical Services For Patients & Families For Health Professionals Research
My Child Has
or find by letter:  A-F  G-L  M-R  S-Z
My Child Has...
 X
FlowerAudiogram
Programs that perform this test
 Diagnostic Audiology Program  
The object of audiometry is to plot an audiogram, or a chart of the weakest intensity of sound which the child can detect at various frequencies. Although the human ear can detect frequencies from 20 to 20,000 Hz (cycles per second), hearing threshold sensitivity usually is measured only for the frequencies 250-8,000 Hz, spanning the range of frequencies needed to hear the sounds of speech. An audiogram showing normal hearing is shown below, followed by an audiogram showing ranges of hearing loss.
Image
Image
 X
Email this page
Printer Friendly
 X
Contact Us Site Map Privacy Accessibility Give Now