Abstract To get rid of the current transmission line visual monitoring device which only relies on a single photo-monitoring method, this paper proposes method based time-delay estimation and equipment coordinates to locate abnormal sound in channel. Firstly, audio-visual is selected collect information any as reference warning record, relative time difference between other records record deter...

With advancements in high fidelity home audio and theater, many claims, theories, ideologies, and products concerning the improvement of sound in high fidelity audio systems have hit the market, regularly confusing consumers. Often, in the quest for better sounding audio systems, audio enthusiasts succumb to false or unresearched claims of ways to improve sound quality, and in doing so, often s...

Rev. A | Page 1 of 12 INTRODUCTION This application note describes the circuit architecture and details required to measure the impedance profile of a commercial loudspeaker using the AD5933 impedance-to-digital converter. By evaluating the acoustic properties of loudspeakers through an impedance measurement from 1960 to 1970, two Australian pioneers, N. Thiele and R. Small, defined the Thiele-...

Recent advances in multimedia network systems have led to the development of a new generation of applications that associate the use of various multimedia objects. The connection of audio and video devices through high speed multimedia pervasive networks will make the use of these systems more convenient. For example, many home appliances, such as video cameras, display monitors, video recorder...

The Telecommunication Sector of the International Telecommunication Union (ITU-T) has developed a set of standards for multimedia conferencing over packet-based networks. These standards are aggregated under a standard umbrella termed Recommendation H.323. Recommendation H.323 describes terminals, equipment, and services for multimedia communication over networks such as the Internet. H.323 ter...

LIBRARIES CENTERS have historically A N D MEDIA been facilities in which recorded information and, more recently, equipment needed to display that information, have been centralized for the convenience of students and other users of such information. During the past decade a subtle but very important shift has taken place in the importance of local access to information. In the library applicat...

Automatic human Activity Recognition (AR) is an important process for the provision of context-aware services in smart spaces such as voice-controlled smart homes. In this paper, we present an on-line Activities of Daily Living (ADL) recognition method for automatic identification within homes in which multiple sensors, actuators and automation equipment coexist, including audio sensors. Three ...

An onboard vehicle-to-vehicle multi-hop wireless networking system has been developed to test the realworld performance of telematics applications. The system targets emergency and safety messaging, traffic updates, audio/video streaming and commercial announcements. The test-bed includes a Differential GPS receiver, an IEEE 802.11a radio card modified to emulate the DSRC standard, a 1xRTT cell...

Localization performance and spatial hearing abilities of blind persons are complex issues. In everyday life we rely on the “fact” that blind people can hear better, without thinking of what “better” means. Localization performance depends on many parameters such as properties of the excitation signal, environmental conditions, individual aspects, and visual influence. Our goal was to create a ...