The paper considers the active control of harmonic and random sound transmitted through a double-leaf partition using a single distributed actuator and a single distributed sensor. The double-leaf partition consists of a pair of small plates (300x380 mm, separated by a 100 mm air-gap,). An actuator made up of shaped, distributed PVDF offers the possibility of cent rolling the volume velocity of...

A sound target-searching robot system which includes a 4-channel microphone array for sound collection, magneto-resistive sensor for declination measurement, and a wireless sensor networks (WSN) for exchanging information is described. It has an embedded sound signal enhancement, recognition and location method, and a sound searching strategy based on a digital signal processor (DSP). As the wi...

We present an innovative sound spatialization and shaping interface, called SoundMorpheus, which allows the placement of sounds in space, as well as the altering of sound characteristics, via arm movements that resemble those of a conductor. The interface displays sounds (or their attributes) to the user, who reaches for them with one or both hands, grabs them, and gently or forcefully sends th...

BACKGROUND New sensors for intelligent remote monitoring of the heart should be developed. Recently, a cutaneous force-frequency relation recording system has been validated based on heart sound amplitude and timing variations at increasing heart rates. AIM To assess sensor-based post-exercise contractility, diastolic function and pressure in normal and diseased hearts as a model of a wireles...

A narrowband MEMS direction finding sensor has been developed based on the mechanically coupled ears of the Ormia Ochracea fly. The sensor consists of two wings coupled at the middle and attached to a substrate using two legs. The sensor operates at its bending resonance frequency and has cosine directional characteristics similar to that of a pressure gradient microphone. Thus, the directional...

Interactive Digital Art is a popular art form that collaborates with science and technology. In this paper we search for Interactive Digital Art which is one of the most popular art genres in these days. It takes a digital technology with modern art and sensor technology helps audiences’ active participation on art works. The participations naturally move their part of body or the hole body to ...

Wireless multimedia sensor networks (WMSN) are emerging to serve for the collection of acoustic and image information. In the WMSN, the microphone is usually employed to function as sensor nodes for the acquisition of acoustic data. However, those microphone sensors are needed to be placed close with sound source and cannot detect sound signal through certain obstacles. To overcome the shortcom...

For all processes in industry where liquids are intermediate or end products, there is a demand for online measurements of physical liquid properties, like density, viscosity and speed of sound. The continuous monitoring of those quantities is important for quality control and for enhancing productivity. In this paper layered resonant piezoelectric sensors for liquids are investigated and it is...