interaural attenuation

interaural attenuation

the reduction in intensity, at one ear, of an acoustic stimulus presented to the other ear canal as the sound is transmitted through the head; for air conduction, the reduction approximates 35 dB, but for bone conduction, it is 10 dB or less.

in·ter·au·ral at·ten·u·a·tion

(in'tĕr-awr'ăl ă-ten'yū-ā'shŭn)
The reduction in intensity the head provides sound presented to one ear canal before it gets to the other ear; for air conduction, the reduction approximates 35 dB, but for bone conduction, it is only about 10 dB.
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References in periodicals archive ?
Interaural attenuation for tubephone insert earphones.
Interaural attenuation using ER-3A insert earphones in auditory brain stem response testing.
Because interaural attenuation for bone-conduction stimuli is minimal or nonexistent, many audiologists believe that measurement of bone thresholds should always be performed with masking of the nontested ear.
For example, interaural attenuation produces cross-hearing in the nontest ear via bone conduction (BC).