Wireless sensor networks are potentially one of the most important technologies of this century. Advances in hardware development have made available the prospect of low cost, low power, miniature devices for use in remote sensing applications. The combination of these factors has improved the viability of utilizing a sensor network consisting of a large number of intelligent sensors, enabling ...

Spherical microphone arrays have been widely studied for acoustic scene analysis and beamforming. Spatial sound field analysis typically requires two distinct steps: A calibration stage equalizes spatio-temporal deviations of the microphones. Then a decoupling stage extracts orthogonal spatial components of the wave field. For spherical microphone arrays, the decomposition of the measured sound...

This article deals with spatial analysis of real 3D sound fields, and presents an optimal beamforming algorithm minimizing the power of side lobes, used to improve the spatial representation of sound fields. Optimal tap vectors are computed for a set of incidence directions mapping the whole sphere. The robustness of the algorithm to sensorpositioning errors and to sensor noise is tested with r...

This paper describes the design and implementation of interactive sound installations using open source software. Aimed at encouraging an audience of non-musicians to explore electronic sounds, the features identified as the key elements in their design were robustness and responsiveness: an interface that is reliable, intuitive and easy to learn, and yields rich and interesting sounds. The mai...

There have been a continuously growing demand for the efficient and infrastructure less Industrial Automation Systems (IAS), to fulfill the rapid changes in real world requirements. During the past decade, wireless sensor networks have been evolved as a powerful tool for the industrial process monitoring and distributed control. In the Industrial wireless control system, sensor nodes are deploy...

The importance of low and consistent latency in interactive music systems is well-established. So how do commonlyused tools for creating digital musical instruments and other tangible interfaces perform in terms of latency from user action to sound output? This paper examines several common configurations where a microcontroller (e.g. Arduino) or wireless device communicates with computer-based...

Approaching behaviour is studied in simulated agents interacting acous-tically. A genetic algorithm is used to evolve a fully recurrent, continuous neural network for controlling the agents. Evolved agents actively discriminate the location of external sources of sound. Their own signalling behaviour is integrated with their search behaviour and sensor gain regulation through self-hearing. Coup...