| Budget Amount *help |
¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2016: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2015: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Outline of Final Research Achievements |
In this study, we addressed super-resolution sound field recording and reproduction for high-fidelity audio systems. Our achievements are summarized as follows: (1) For sound field reconstruction using a microphone array, we proposed a method based on harmonic analysis of infinite orders for estimating a sound field inside the source-free region. For estimating a sound field including sources, a sparse sound field decomposition method is proposed, and its efficacy is validated by experiments. (2) We proposed a sound field recording and reproduction method using the prior information of source locations and listening area. (3) A theory on the optimal loudspeaker and microphone placement method for sound field control is investigated.
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