An Improvement of Lighting Effect for Soundproof Windows
Yusuke Takashima, Yuya Nishimura, Sohei Nishimura, Quang Nguyen Huy, Noriko Horibe, Tsuyoshi Nishimura, Takashi Yano

A new type of window has been presented in previous study. When attention to the lighting's effect, this window has a defect needs to be improved. The parallelepiped form of soundproofing unit is used to improve the lighting effect. Based on the experiment and the comparison with the acoustic characteristics of rectangular shaped, the characteristics of parallelepiped soundproofing unit will take to considering. As the results, the soundproofing techniques of rectangular soundproofing unit can be applicable for parallelepiped soundproofing unit in practical use.

Keywords: sound propagation, soundproof, higher-order mode, wave equation, windows