| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
We investigated the masking effect produced of bone-conducted ultrasound(BCU). In our experiment, we use artificial tinnitus sound In normal hearings. we measured the change of the masking Levels intensity using seven kinds of ultrasonic frequency. Our result showed that it is no significant difference of the frequency among artificial tinnitus sound and of the presented frequency of ultrasonic masker sound. Tinnitus of the low range frequency has a small influence of the bone-conducted ultrasonic masking sounds. This result supported the characteristics which bone-conducted ultrasound exhibits a large masking effect on high -frequency audible sound. On the case of tinnitus patients, our results showed the possibility that BCU masker could restrain tinnitus more effectively than an audible sound.
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