2010 Fiscal Year Final Research Report
Acoustic Display Using High Speed 1-bit Signal Processing for Boundary Surface
| Project/Area Number |
21800062
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Media informatics/Database
|
|---|
| Research Institution | Waseda University |
|---|
Principal Investigator |
TAKEOKA Shigeto Waseda University, 理工学術院, 助手 (30514468)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| 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 |
|---|
| 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.
|
