Several recent experiments at the Air Force Research Laboratory have investigated the utility of spatial audio displays for augmenting speech intelligibility in multitalker communications environments ~Bolia et al., 1999; Nelson et al., 1998a; Nelson et al., 1998b; Simpson et al., 1999!. Some of the goals of this research included: ~1! an empirical determination of the maximal number of channel...

Creating an interactive project that deals with 3-D sound becomes difficult when it needs to run in multiple venues, due to a diversity of loudspeaker arrangements and spatialization systems. For effective exchange, there needs to be a standardized approach to audio spatialization with a unified, but abstract way of representing 3-D audio scenes. Formats from the gaming and multimedia communiti...

Fine-scale population spatial distribution plays an important role in urban microcosmic research, influencing infrastructure placement, emergency evacuation management, business decisions, and planning. In the past, nighttime light (NTL) data were generally used to map of at a large scale because their low resolution. The new generation Luojia1-01 NTL can be for fine-scale social economic analy...

In this paper we propose a method to simulate a 3D acoustical environment in which sound sources are positioned in well defined sides. Our method is real-time applications oriented, due to the low computational cost of the implemented operations. The spatial position that human brain assigns to a sound is influenced mainly by the differences between the sound signals that reach the listener’s e...

Currently, achieving high-fidelity sound spatialization requires the prospective user to undergo lengthy measurements in an anechoic chamber using highly specialized equipment. This, in turn, has increased the cost and reduced the availability of high-fidelity spatialization to the general public. Attempts to generalize 3D audio have been made using the measurement of a KEMAR dummy head or crea...

Gephi is a network visualization software used in various disciplines (social network analysis, biology, genomics...). One of its key features is the ability to display the spatialization process, aiming at transforming the network into a map, and ForceAtlas2 is its default layout algorithm. The latter is developed by the Gephi team as an all-around solution to Gephi users' typical networks (sc...

Little is known about the perception of artificial spatial hearing by hearing-impaired subjects. The purpose of this study was to investigate how listeners with hearing disorders perceived the effect of a spatialization feature designed for wireless microphone systems. Forty listeners took part in the experiments. They were arranged in four groups: normal-hearing, moderate, severe, and profound...

This paper introduces a new approach to the decomposition of measured Head-Related Impulse Responses (HRIRs) based on simultaneous analysis in the time and frequency domains. This approach is computationally less demanding and faster than previous systematic approaches proposed for this purpose. Currently, HRIRs are the most usual representation of Head-Related Transfer Functions (HRTFs), which...

While the angular spatialization of source sounds through individualized Head-related transfer functions (HRTFs) has been extensively investigated in auditory display research, also leading to effective real-time rendering of these functions, conversely the interactive simulation of egocentric distance information has received less attention. The latter, in fact, suffers from the lack of realti...