This paper addresses the problem of robust localization of a sound source in a wide range of operating environments. We use fractional lower order statistics in the frequency domain of two-sensor measurements to accurately locate the source in impulsive noise. We demonstrate a significant improvement in detection via simulation experiments of a sound source in a-Stable noise. Applications of th...

We have developed new sound feedback for powerful karate training with pleasure, which enables to extract player’s movement, understand player’s activities, and generate them to sounds. We have designed a karate training environment which consists of a multimodal room with cameras, microphones, video displays and loud speakers, and wearable devices with a sensor and a sound generator. Experimen...

Complete characterization of a sound field requires measurement of both sound pressure and particle velocity. In this paper, a new symmetrical four-wire sensor configuration is discussed which has a lower noise floor than its two-wire version and measures in two dimensions. With a pair of four-wire sensors, a fully integrated 3D particle velocity sensor is realized with smaller size than its pr...

wireless sensor networks consist of sinks, events, and a large number of tiny, multifunctional and battery-powered sensor nodes. Thousands of the sensor nodes are randomly distributed over a vast field to selforganize a large-scale wireless sensor network. The sensor nodes monitor some events in surrounding environments, such as temperature, humidity, sound, vibration, presence of objects, and ...

Different speech detection sensors have been developed over the years but they are limited by the loss of high frequency speech energy, and have restricted non-contact detection due to the lack of penetrability. This paper proposes a novel millimeter microwave radar sensor to detect speech signals. The utilization of a high operating frequency and a superheterodyne receiver contributes to the h...

Software and hardware enhancements to an electric 6-string cello are described with a focus on a new mechanical tuning device, a novel rotary sensor for bow interaction and control strategies to leverage a suite of polyphonic sound processing effects.

In this paper, the influencing parameters of a novel purely mechanical wireless in-mould injection moulding sensor were investigated. The sensor is capable of detecting the melt front at predefined locations inside the mould. The sensor comprises a movable pin which acts as the sensor element generating structure-borne sound triggered by the passing melt front. Due to the sensor design, melt pr...

Kites offer considerable potential as wind speed sensors--a role distinct from their traditional use as instrument-carrying platforms. In the sensor role, wind speed is measured by kite-line tension. A kite tether line tension meter is described here, using strain gauges mounted on an aluminum ring in a Wheatstone bridge electronic circuit. It exhibits a linear response to tension (19.5 mV N(-1...

In different industrial branches, it is necessary to characterize liquids in closed containers. For small cans, accessibility to both sides is almost trivial. However, in industries in which larger containers are used, and especially in the dock industry, only one side is accessible practically; and damping often prevents through-transmission ultrasonic measurements or pulse echo techniques. It...