Investigation on perceptual influence of spatial index on enveloping sound

Abstract

This thesis is to discover the influence of Spatial Index on the region of listener envelopment. Audio engineers often realize the perceptual difference between convolution and conventional artificial reverberation techniques. The understanding of uncorrelatedness via investigating spatial index may provide one of clues on this difference.

The primary task is to diverse the decorrelation degrees of the reverberation tail using various algorithms, which can be proved by psychoacoustic test. Some optimal results may lead us to perceive no difference between measured binaural impulse response and created reverberation tail. Through this discovery, the researchers acquire a hint to resolve the perceptual gap between the real world experience and virtual space.