The net effect of the head, pinna, and ear canal is that sounds in the 2,000 to 4,000 Hz region are amplified by 10 to 15 dB.The ear canal protects the eardrum and acts as a resonator, providing about 10 decibels (dB) of gain to the eardrum at around 3,300 Hertz (Hz).This is an important factor to consider when fitting hearing protectors. The ear canal extends from the pinna to the eardrum and is about 26 millimeters (mm) in length and 7 mm in diameter.Each individual's pinna puts a distinctive imprint on the acoustic wave traveling into the auditory canal.The dimensions and folds of the pinna cause certain sound frequencies to be amplified and other frequencies to be weakened.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |