Sound Field Visualization Using the Finite- Difference Time-domain Method and Measured Spatial Room Impulse Responses

Visualization is an intuitive way to observe and analyse the phenomena related to the propagation of sound. It is evident that human hearing is highly capable of discriminating different aspects from an acoustic signal. The ability to discriminate is not necessarily enough to identify causality, that is answering the question: what aspect in the audio signal path, being a device or a room, contributes to the perceived difference in sound? Extracting information from a signal and visualizing it is a valuable tool for recognizing causality in cases where direct comparison between conditions via listening is not possible.