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OBSERVATION OF THE CROSS HEARING AND A SIGHT OF JUDGMENT OF THE SIDE WHICH HAS BETTER HEARING OF BONE CONDUCTION

Sinsak Horiguti, Hirokazu Shibui

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Abstract

Authors observed the property of the cross hearing in the patients of unilateral deafness using ordinary audiometer.We found the attenuation with which air-borne sound was transmitted from deaf ear to good. hearing side was 60db in average. But bone-conducted sound transmitted from the deaf ear to healthy side showed 10db attanuation in average.From these observation the authors demonstrated the possibility to know the side of the ear with good hearing of bone conduction from audiogram obtained without any masking noise.Moreover, the method of masking at the test of occluded bone conduction or fluid conduction was described.

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Authors observed the property of the cross hearing in the patients of unilateral deafness using ordinary audiometer.We found the attenuation with which air-borne sound was transmitted from deaf ear to good. hearing side was 60db in average. But bone-conducted sound transmitted from the deaf ear to healthy side showed 10db attanuation in average.From these observation the authors demonstrated the possibility to know the side of the ear with good hearing of bone conduction from audiogram obtained without any masking noise.Moreover, the method of masking at the test of occluded bone conduction or fluid conduction was described.

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Available abstract

Authors observed the property of the cross hearing in the patients of unilateral deafness using ordinary audiometer.We found the attenuation with which air-borne sound was transmitted from deaf ear to good. hearing side was 60db in average. But bone-conducted sound transmitted from the deaf ear to healthy side showed 10db attanuation in average.From these observation the authors demonstrated the possibility to know the side of the ear with good hearing of bone conduction from audiogram obtained without any masking noise.Moreover, the method of masking at the test of occluded bone conduction or fluid conduction was described.

Key concepts: Bone conduction, Audiometer, Audiogram, Audiology, Medicine, Hearing test, Masking (illustration), Hearing loss

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