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자료유형
학술대회자료
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제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2008
발행연도
2008.10
수록면
236 - 240 (5page)

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초록· 키워드

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Sound focused personal audio system is defined as the system that can make a user enjoy the sound without bothering user’ neighbors. To implement this system, it is needed to generate the acoustically bright zones where a user is supposed to be and the dark zones in user’ side regions. As a solution method, acoustic contrast control [Kim and Choi, J. Acoust. Soc. Am. 111. 1695 (2002)], which maximize the energy ratio between two zones, can be considered and, sound focused personal audio system for a mono sound have been implemented in 2007 as an application example and its results were reliable: 20dB pressure level difference between the bright and dark zone. We have tried to make the sound focused personal audio system for a stereo sound as a further application: personal stereophonic system. Acoustic contrast control was also applied to implement this system and the control scheme for stereophonic sound using this method was suggested. In this paper, we address the mathematical formulations of stereophonic system using acoustic contrast control, and discussions for its capabilities for implementing the personal stereophonic system from theoretical and experimental results.

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Abstract
1. MOTIVES AND OBJECTIVE
2. BACKGROUND KNOWLEDGES
3. PROBLEM DEFINITION
4. SOLUTION METHOD
5. REALIZATION OF PERSONAL STEREOPHONIC SYSTEM
6. CONCLUSIONS
ACKNOWLEDGEMENT
REFERENCES

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