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URN etd-0724108-160640 Statistics This thesis had been viewed 2914 times. Download 1117 times. Author Chun-Wei Chang Author's Email Address No Public. Department Computer Science and Enginerring Year 2007 Semester 2 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 63 Title The Application of Beam Tracing in Architectural Acoustics Keyword Reverberation Beam Tracing Architectural Acoustics Beam Tree Beam Tree Architectural Acoustics Beam Tracing Reverberation Abstract Beam tracing in computer graphics, builds the model of the light paths and produces the light rendering effect by tracing the light that intersects the surface of the model. Sound, like light, is a kind of wave. It can also intersect the surface of the model and produce transmission, reflection, refraction, diffraction. If we treat sound as light, using beam tracing, we can get the model of the sound path.
This research applies beam tracing in architectural acoustics. The prototype system considers the geometry of the building, the position of the source and receiver, and the acoustic properties of the sound transmission (the sound absorption coefficient of the walls and the temperature of the environment). The system then builds the beam tree by beam tracing, and finds all possible paths of the transmission and reflection. All sound paths are then traced to compute the sound obtained by the receiver. By considering many receivers, we draw the distribution of the sound energy and discuss the effects of the different architectural structure.
Key Words: Beam Tracing, Architectural Acoustics, Beam Tree, Reverberation.
Advisor Committee Jyun-Ming Chen - advisor
Chun-Fong You - co-chair
Ming-Liang Huang - co-chair
Files Date of Defense 2008-07-23 Date of Submission 2008-07-24