| Project/Area Number |
24500226
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Perception information processing/Intelligent robotics
|
|---|
| Research Institution | Ryukoku University |
|---|
Principal Investigator |
|
|---|
| Research Collaborator |
YASUEDA Kazuya 龍谷大学, 大学院理工学研究科
|
|---|
| Project Period (FY) |
2012-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
|---|
| Keywords | 多点制御法 / スピーチプライバシー / マスキング / 信号分解法 / 環境音 / スピーカアレー / 音声プライバシー |
|---|
| Outline of Final Research Achievements |
This study describes a method of sound reproduction in the limited area. It achieves high--quality speech in the target direction. On the other hand, there is significant degradation in the outside of the target direction. This method uses two schemes; signal decomposition method and the interference method of the outside of target direction by using environmental sounds. Speech is decomposed into two sub-signals using signal decomposition method, and is produced by the multi point control method. Furthermore, we discuss configuration of multi-point control filter for reproduction of environmental sound in the outside of target direction. Subjective tests show that the proposed method gives the good performance compared with the conventional method. The proposed method is possibility to protect the privacy of the contents of the conversation.
|
