Hearing test on-line: sensitivity, equal loudness contours and audiometry -

This hearing test measures the relative sensitivity of your ears at different frequencies. It produces equal loudness contours or hearing sensitivity curves – the frequency response of your own ears. The flash script allows you to play sound files with a range of frequencies and sound levels with the click of a mouse. The total size of all files is approximately 400 k. Because both the chart and the instructions refer to decibels, you may wish to go first to http://www.phys.unsw.edu.au/jw/dB.html - What is a decibel?  We also have a  http://www.animations.physics.unsw.edu.au/waves-sound/human-sound/ - multimedia tutorial  on the operation of the voice and hearing.

For best results you will need reasonably good quality headphones that enclose your ears completely and seal out external noises. Ordinary loudspeakers, and especially the small ones that come with computers, have such poor response, particularly at low frequency and are so much affected by interference effects and resonances that results obtained with them are useless. They may also be damaged by low frequencies.

http://www.phys.unsw.edu.au/jw/hearing.htm

http://www.phys.unsw.edu.au/jw/hearing.htm - http://www.phys.unsw.edu.au/jw/hearing.htm