This paper presents a unique insight into the way acousticians, computing specialists and sound designers describe the dimensions of sound they use. Seventy-five audio professionals completed a detailed questionnaire created to elicit common definitions of the words noise and soundscape, and to establish common methods of reifying sound, architectural acoustics and hearing abilities. The respon...

This paper describes our experience with lecture halls with regard to the room acoustics, sound reinforcement and audio frequency induction loops for persons with hearing impairment. The optimum reverberation time and geometrical conditions for classrooms are well known. Recent research basically confirms this knowledge but indicates the need for shorter reverberation times. However, many exist...

This paper presents a physical demonstration of an audio-range line array used to teach interference of multiple sources in a classroom or laboratory exercise setting. Software has been developed that permits real-time control and steering of the array. The graphical interface permits a user to vary the frequency, the angular response by phase shading, and reduce sidelobes through amplitude sha...

Apart from inducing a high sense of presence, creating a sensation of self-motion is often a key issue of many Virtual Reality applications. However, self-motion perception (vection) has been primarily investigated for visual stimuli. This study explored the possibility of inducing vection by realistic auditory stimuli. Furthermore, influence of various audio design parameters on auditoryinduce...

Simulation and auralization techniques are used in engineering, architecture, sound design and in applications in hearing research. The components of this technique are acoustic simulations and signal processing tools and the data interfaces in between, for which well-established solutions exist. The main bottlenecks are lack of data of 3D characterization of sound sources and material paramete...

This document summarizes an algorithm for independent low-rank matrix analysis, which was proposed as determined rank-1 multichannel nonnegative matrix factorization in the following published papers: Daichi Kitamura, Nobutaka Ono, Hiroshi Sawada, Hirokazu Kameoka, and Hiroshi Saruwatari, “Efficient multichannel nonnegative matrix factorization exploiting rank-1 spatial model,” Proceedings of I...

In this paper, we describe an approach for an animated speaking face synthesis and its application in modeling impostor/replay attack scenarios for face-voice based speaker verification systems. The speaking face reported here learns the spatiotemporal relationship between speech acoustics and MPEG4 compliant facial animation points. The influence of articulatory, perceptual, and prosodic acous...

The Electromagnetically Prepared Piano device allows for direct control of piano strings through the use of an array of electromagnets. Created several years ago at Stanford University's Center for Computer Research in Music and Acoustics (CCRMA), the EMPP differs significantly from previous instruments based on similar principles in that each magnet is controlled by an arbitrary external audio...

CAHRISMA “Conservation of the Acoustical Heritage by the Revival and Identification of Sinan’s Mosque’s Acoustics”, research project carried on within the Fifth Framework INCO-MED Programme of the European Commission, is designed by the goal to innovate the acoustical heritage concept in the field of architectural conservation. The main objectives of this research are identification, revival an...

We present an algorithm for interactive computation of diffraction paths for geometric-acoustics in complex environments. Our method extends ray-frustum tracing [Lauterbach et al. 2007] to efficiently compute volumetric regions of the sound field caused by long diffracting edges. We compute accurate diffraction paths from each source to the listener and based on the Uniform Theory of Diffractio...