| Project/Area Number |
20500177
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Perception information processing/Intelligent robotics
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| Research Institution | Aichi University of Technology |
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Principal Investigator |
JITSUHIRO Takatoshi Aichi University of Technology, 工学部, 准教授 (60394996)
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| Co-Investigator(Renkei-kenkyūsha) |
KOGURE Kiyoshi 金沢工業大学, 工学部, 教授 (50395159)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 音声認識 / 雑音抑圧 / ウェアラブルコンピューティング / スペクトラルサブトラクション / スペクトルサブトラクション |
|---|
| Research Abstract |
We propose a new noise suppression using two kinds of microphones with auto time-synchronization. The one of microphones is used to estimate noise signals, and the estimated noise components are subtracted from the target input signal of the other microphone. Auto time-synchronization is done by using speech features' distance, and the space characteristics of noise spectrum is compensated by an estimated conversion matrix. Experimental results show that this method is more effective for non-stationary noise signals.
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