Physically-Based Auralization; Design, Implementation, and Evaluation.

摘要

This thesis concerns the design, implementation, and evaluation of auralization system. Auralization or 'rendering audible' is an analogous term for visualization when creating images from 3D models. The focus is in design methods employed in the Digital Interactive Virtual Acoustic (DIVA) auralization system and in the assessment of its quality. The research field related to auralization is multidisciplinary, thus the implementation of the system requires understanding and knowledge of room acoustics, digital signal processing, and psychoacoustics. On a general level the research problem is to model and simulate the sound propagation from sound sources to the ear drums of a listener through the modeled space. The research problems related to the design of an auralization system lie to a great extent in the areas of room acoustic modeling, digital filter design, and 3D sound reproduction.