Comparative Performance Evaluation of Near 3D Sound Field Reproduction System with Directional Loudspeakers and Wave Field Synthesis
Near 3D sound field display systems are important toward realizing ultra-realistic communications systems such as 3D television. We have proposed the near 3D sound field reproduction systems using directional loudspeakers and wave field synthesis and developed the real system by constructing the surrounding microphone array and the radiated loudspeaker array. In this paper, to evaluate the performance of sound image localization in the developed system, sound image positions were estimated via computer simulation. The results indicated that listeners can accurately localize a sound image in any listening position around the radiated loudspeaker array if the radiation directivity of the loudspeaker units is sharpened, and that listeners can accurately localize a sound image close to the listening position if they listen to a sound in a particular listening position, even if the radiation directivity of the loudspeaker units is not sharpened. Results of estimation of a sound image position by acoustical measurement similarly showed that listeners can accurately localize a sound image close to the listening position if they listen to a sound in a particular listening position.
Toshiyuki Kimura Yoko Yamakata Michiaki Katsumoto Takuma Okamoto Satoshi Yairi Yukio Iwaya Yoiti Suzuki
Universal Media Research Center, National Institute of Information and Communications Technology, Ko Academic Center for Computing and Media Studies, Kyoto University, Sakyo-ku, Kyoto, 606-8501 Japan Research Institute of Electrical Communication / Graduate School of Information Sciences, Tohoku Uni Department of Electrical Engineering, Sendai National College of Technology, Natori, Miyagi, 981-123
国际会议
2010 4th International Universal Communication Symposium(第四届国际普遍交流学术研讨会 IUCS 2010)
北京
英文
220-227
2010-10-18（万方平台首次上网日期，不代表论文的发表时间）