Acoustic Display Using High Speed 1-bit Signal Processing for Boundary Surface
| Project/Area Number |
21800062
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Media informatics/Database
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| Research Institution | Waseda University |
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Principal Investigator |
TAKEOKA Shigeto Waseda University, 理工学術院, 助手 (30514468)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
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| Keywords | 超多チャンネル信号処理 / 高速1bit信号処理 / パラメトリックスピーカ / 音場可視化 / 高速度カメラ / 3次元音場 / 高速1ビット信号処理 / 音場再現 / スピーカアレイ / マイクロホンアレイ / アコースティックプロジェクタ / 音 / 信号処理 / 変復調 |
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| Research Abstract |
In this report, we present the recording and reproduction method of sound field by controlling a large quantity of points. Specifically, directionally controllable parametric array speaker system consisting of 576 ultrasonic transducers controlled individually, recording of sound field by using 1024ch MEMS- microphone array, and measurement of particle velocity distribution by PIV method with high speed camera are described. As a result, we have realized sound recording and reproduction systems that satisfy the spatial aliasing. And the possibilities of various applied technologies of this method are suggested.
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Report
(3 results)
Research Products
(16 results)
