Title:
Perception-based simplification for binaural room auralisation

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Hacihabiboglu, H.
Murtagh, F.
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Abstract
Room auralisation refers to the process by which the acoustic response of a room is rendered audible using signal processing techniques. The major part of the computational complexity in a binaural room auralisation system arises from the processing of the early reflections. However, most of the early reflections in a room are suppressed by the auditory system in a variety of psychoacoustical processes such as temporal masking and the precedence effect. This paper presents a perception-based data reduction method based on a mathematical model of the precedence effect. Results of a subjective evaluation in the form of a virtual sourceidentification experiment are presented. It is shown that it is possible to reduce the total number of reflections by 70% without significantly affecting the localisation acuity.12.
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2006-06
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