With a general decline in people's choosing to pursue science and engineering degrees there has never been a greater need to raise the awareness of lesser known fields such as acoustics. Given this context, a large-scale public engagement project, the 'Aeolus project', was created to raise awareness of acoustics science through a major collaboration between an acclaimed artist and acoustics res...

The long-term scientific objective of this project is to increase our understanding of sound propagation in ocean bottom sediments, including water-saturated sands and muds, gas-bearing sands and muds, and sediments which support seagrass. This in turn benefits buried object detection, sonar operation and acoustic communications in shallow water. The proposed study includes continued analysis o...

This paper is a review of the audio rendering capabilities in the MPEG-4 standard. The basic model for describing the audiovisual scene in MPEG-4 is the scene graph (BIFS), which is based on the VRML model. MPEG-4 extends the model with a quite complete acoustics modeling framework. The different versions of the standard are discussed as well as the different approaches (physical and perceptual...

It could be said that Acoustics forms a bridge between speech production and speech perception, and as such it lies at the intersection of several speech communication related fields. The field of Speech and Hearing Sciences, for example, deals with speech production and speech perception. Speech Pathology also relates crucially to Acoustics. In addition, the linguistic fields of Phonetics and ...

Ambisonic impulse responses (also known as the Spatial Impulse Responses) are getting more and more popular in many applications of room acoustics. Measuring, modeling, synthesizing, or simulating acoustics of interiors with emphasize on their spatial features are the examples. The present article shows a methodology of room acoustics auralization assessment using the ambisonics technology. A c...

This paper presents a quantitative analysis of the relation between speech acoustics and the 2D video signal of the facial motion that occurs simultaneously. 2D facial motion is acquired using an ordinary video camera: after digitizing a video sequence, a search algorithm is used for tracking markers painted on the speaker’s face. Facial motion is represented by the 2D marker trajectories; wher...

Choir acoustics is but one facet of choir-related research, yet it is one of the most tangible. Several aspects of sound can be measured objectively, and such results can be related to known properties of voices, rooms, ears and musical scores. What follows is essentially an update of the literature overview in my Ph.D. dissertation from 1989 of empirical investigations known to me that deal sp...

Finite element approximations of the first-order hyperbolic equation U • Vu + au = / are considered on curved domains £2 C K2 . When part of the boundary of Í2 is characteristic, the boundary of numerical domain, Í2A , may become either an inflow or outflow boundary, so it is necessary to select an algorithm that will accommodate this ambiguity. This problem was motivated by a problem in acoust...