Investigation on sound reverberation characteristics of a coupled volume system

The characteristics of sound reverberation are fundamental and significant aspects of room acoustics. This work investigates spatial and temporal reverberation characteristics in a coupled volume system. In coupled volume systems, reverberant energy often manifests as a multiple-slope decay, which is relevant to both physical and perceptual behaviors. This feature also brings a localizable reverberance from the secondary volume, invoking interest in spatial analysis of the reverberation. The intention is to leverage clarity and reverberance, being both competing yet desirable perceptual attributes. Using experimentally measured binaural impulse responses, the advanced Bayesian method and the interaural decorrelation analysis facilitate a systematic analysis of both temporal and spatial characteristics of sound reverberation in the coupled volume system. It will also guide the investigations into a subjective evaluation. Driven by experimental data measured in the coupled volume system this talk discusses these analysis results.