2016 Fiscal Year Final Research Report
Development of speech articulation estimation and presentation system for emergency broadcast system by sound field rendering
| Project/Area Number |
26350460
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
|
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| Research Institution | Doshisha University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | CE-FDTD法 / 防災無線 / 音空間レンダリング / GPU / ボクセライザ |
|---|
| Outline of Final Research Achievements |
In this study, an estimation and presentation system of speech articulation for emergency broadcast system is developed by sound field rendering. The compact explicit-finite difference time domain (CE-FDTD) method is applied to the rendering. A voxelizer is developed for arbitrary boundary shape for the CE-FDTD method. Some demonstrations are made for a numerical model of 400×200×50 m with sampling frequency of 8 kHz by the sound field rendering. The rendering results are then reproduced by the 24ch loudspeaker array system. It is confirmed that the realistic speech articulation can be represented by this developed system.
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| Free Research Field |
数値音響工学
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