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In this paper we propose a prototype of a spatialized text reader for visually impaired users. The basic functions of the system are reading arbitrary files, converting text into speech using different synthesized voices and spatializing synthesized speech. Visually impaired users can thus listen to the content of a file read by various synthesized voices at different spatial positions. Some metadata...
Long term evolution (LTE) is the next major step towards 4th generation of mobile communications. LTE introduces a new radio access network with technologies that offer higher data rates, efficiency and quality of services as well as lower costs and the integration with the existing open standards.
In this paper we evaluate two different auditory interfaces for word processing application. The interfaces are in the form of hierarchical menu structures and use spatial sounds in two different spatial configurations. The first menu - AH - has a ring shaped horizontal configuration of the sound sources, whereas the second - AV - has a vertical configuration of the sound sources. Spatial sounds are...
Owing to a great expansion of broadband network access in recent years, the collaborative graphical desktop sharing systems (GDSS) have gained a considerable popularity and denote a non-negligible amount of data in today's internet traffic. Much research has been focusing on characterization of traffic load from different types of internet applications (such as Web, VoIP, Video streaming and Peer-to-Peer),...
In this paper we evaluate the safety of the driver when using an embedded communication device while driving. As a part of our research, four different tasks were preformed with the device in order to evaluate the efficiency and safety of the drivers under three different conditions: one visual and two different auditory conditions. In the visual condition, various menu items were shown on a small...
This paper briefly introduces the notion of concept modeling, explore some existing techniques, and discuss their advantages and drawbacks. In an effort to find a general concept model, focus of our research was primarily on documents describing patents. Proposed is model for patents which allows efficient detection of individual concepts and relations among them, both within and across patent boundaries...
The main idea of this paper is to propose a new solution for a wireless intrusion detection prevention system (WIDPS). The proposed WIDPS has a high degree of autonomy in tracking suspicious activity and detecting positive intrusions. Our focus was the reduction of detected false positive intrusion by implementing adaptive self-learning neural net in the system. Once it is fully developed and tested,...
The synthesis of spatial sound, which is played through the headphones, can be done by the use of head related transfer functions (HRTF). The latter describe the changes in the sound wave as it propagates from a spatial sound source to the human eardrum. The functions include many different factors, which influence the accuracy of spatial sound source perception. The most important factors are inter-aural...
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