| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Research Abstract |
Virtual auditory display that presents spatial auditory information to a listener can be realized by reproducing sound pressures at a listener's both ears. Sound pressures observed at both ears have inter-individual variations caused by pinna shapes. Therefore, to enhance the accuracy of virtual auditory display, inter-individual differences of sound pressures at both ears should be compensated to each listener. However, it is yet to be revealed which part of pinna yield the inter-individual variations. This work investigated a sound field around the pinna using numerical simulation and measurement using physical model of pinna in order to clarify which part of pinna contribute to a generation of perceptually important inter-individual variation. The results revealed that the shape of an upper part of pinna is one of the major factor that yield the inter-individual variation of the sound pressures at the ears.
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