서지주요정보
가상음장재현을 위한 다중 스피커 배치 방법 = Multiple loudspeaker arrangement for virtual sound reproduction
서명 / 저자 가상음장재현을 위한 다중 스피커 배치 방법 = Multiple loudspeaker arrangement for virtual sound reproduction / 이찬주.
저자명 이찬주 ; Lee, Chan-Joo
발행사항 [대전 : 한국과학기술원, 2001].
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소장정보

등록번호

8011692

소장위치/청구기호

학술문화관(문화관) 보존서고

MME 01047

SMS전송

도서상태

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초록정보

This thesis describes the design process and analysis of a multichannel virtual sound reproduction system. The objective is to find the optimal configurations that produce virtual sound field as close to real one as possible. Since impulse responses at the surface of a rigid sphere show characteristics similar to those of real HRTFs, rigid sphere model is selected to model the sound propagation paths in scattered fields of a system. Evaluation of the system performance was done by introducing three factors: accuracy of signals with given system resources, energy required in multichannel signal processing, and robustness of sound image. Two-channel systems and four-channel systems were studied through computer simulations. The results can be summarized as follows: First, as the in-between angle of loudspeakers decreases discrepancy between real field and virtual field also decreases. Second, when the in-between angle of loudspeakers decreases, the energy required in signal processing increases and the output signals are more easily distorted. In the case of very closely spaced configurations, multichannel driver controls the pair of loudspeakers so that they behave like a dipole. Finally, robustness of a sound image was evaluated by calculating the area of zones of equalization. It turned out that narrow configuration is desirable for increasing the robustness of sound images. With the criteria suggested, an optimal configuration for a given situation can be determined by finding a compromise between them.

서지기타정보

서지기타정보
청구기호 {MME 01047
형태사항 viii, 83 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Chan-Joo Lee
지도교수의 한글표기 : 박영진
공동교수의 한글표기 : 김양한
공동교수의 한글표기 : 한순흥
지도교수의 영문표기 : Young-Jin Park
공동교수의 영문표기 : Yang-Han Kim
공동교수의 영문표기 : Soon-Hung Han
학위논문 학위논문(석사) - 한국과학기술원 : 기계공학전공,
서지주기 참고문헌 : p. 80-83
주제 가상음장
멀티채널
3-D 사운드
입체음장
스피커
virtual sound
3-D sound
HRTF
multichannel
loudspeaker
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