This paper presents an acoustic impedance control architecture for electroacoustic absorber combining both feedforward and feedback microphone-based strategies on a current-driven loudspeaker. Feedforward systems enable good performance direct control. However, inaccuracies in the required actuator model can lead to loss of passivity, which cause unstable behaviour. The contribution allows bett...

This paper outlines technical and aesthetic approaches to sound spatialization for electroacoustic music composition. In particular, the paper discusses how spatialization (sound diffusion) can be used to realize specific musical objectives. Technological solutions to problems associated with adapting multichannel compositions for live spatialization are explored, with particular reference to t...

In this paper, a framework for interactive sonification is introduced. It is argued that electroacoustic composition techniques can provide a methodology for structuring and presenting multivariable data through sound. Furthermore, an embodied music cognition driven interface is applied to provide an interactive exploration of the generated music-based output. The motivation and theoretical fou...

the application of low-frequency ultrasound for transdermal delivery of insulin is of particular public interest due to the increasing problem of diabetes. the purpose of this research was to develop an air ultrasonic ceramic transducer for transdermal insulin delivery and evaluate the possibility of applying a new portable and low-cost device for transdermal insulin delivery. twenty-four rats ...

An electroacoustic echo method for studying the high-frequency (HF) electrical and elastic properties of piezoelectric materials in a finely dispersed state is described. The characteristics relaxation time natural artificial quartz powders are determined. Natural one represented by following types: smoky quartz, citrine, amethyst, recrystallized, granular columnar. It shown that (especially ci...