| Project/Area Number |
23500114
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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 |
Media informatics/Database
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
ONAI RIKIO 電気通信大学, 情報理工学(系)研究科, 教授 (70323871)
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| Co-Investigator(Kenkyū-buntansha) |
OKABE Makoto 国立大学法人電気通信大学, 大学院・情報理工学(系)研究科, 助教 (40557211)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | マルチメディア技術 / 音処理 / 効果音編集 |
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| Research Abstract |
We researched the technology of sound effect synthesis for soundless video. We classified sound effects into three types, that is, sound repeatedly, instantaneous sound, and persistent sound, and studied the persistent sound and instantaneous sound.
In the case of instantaneous sound, it is necessary to match the timing in milliseconds of sound effects and movement of an object in the video. So from the video with sound, we cut out the sound data and the sound feature used for the synthesis, embed the cut out data in the objects independent of the video, and established technologies of instantaneous sound synthesis.In the case of sound that lasts about 5 seconds from a few milliseconds, such as explosions, the sound components appear irregularly over a wide frequency band. We established technologies of extending the persistent effect sounds in less degradation in accordance with the movement of an object in the video.
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