315,569 research outputs found

    The Use of Video “Sidoarjo Story Sound” to Improve Listening Ability and Recognize the Socio-Cultural Environment of Kindergarten Student

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    The purpose of research to describe the ability to listen and recognize the socio-cultural environment through the use of video “Sidoarjo Story Sound” in kindergarten children group B. With the research subjects of children aged 5-6 years of group B at Happy Kids School Kindegarten in Sidoarjo with a total of 20 children. The research method uses experimental research with one group pretest-posttest design. Data collection instruments use descriptive quantitative statistical analysis techniques. The findings of this study showed that video “Sidoarjo Story Sound” can improve the ability to listen and recognize the socio-cultural environment in group B by 0.88 with a high category and 0.97 with a high category. Implication of the research can combine Sidoarjo Story Sound videos with other learning methods and adjust the development of technology and curriculum used in schools

    Using immersive audio and vibration to enhance remote diagnosis of mechanical failure in uncrewed vessels.

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    There is increasing interest in the maritime industry in the potential use of uncrewed vessels to improve the efficiency and safety of maritime operations. This leads to a number of questions relating to the maintenance and repair of mechanical systems, in particular, critical propulsion systems which if a failure occurs could endanger the vessel. While control data is commonly monitored remotely, engineers on board ship also employ a wide variety of sensory feedback such as sound and vibration to diagnose the condition of systems, and these are often not replicated in remote monitoring. In order to assess the potential for enhancement of remote monitoring and diagnosis, this project simulated an engine room (ER) based on a real vessel in Unreal Engine 4 for the HTC ViveTM VR headset. Audio was recorded from the vessel, with mechanical faults synthesized to create a range of simulated failures. In order to simulate operational requirements, the system was remotely fed data from an external server. The system allowed users to view normal control room data, listen to the overall sound of the space presented spatially over loudspeakers, isolate the sound of particular machinery components, and feel the vibration of machinery through a body worn vibration transducer. Users could scroll through a 10-hour time history of system performance, including audio, vibration and data for snapshots at hourly intervals. Seven experienced marine engineers were asked to assess several scenarios for potential faults in different elements of the ER. They were assessed both quantitatively regarding correct fault identification, and qualitatively in order to assess their perception of usability of the system. Users were able to diagnose simulated mechanical failures with a high degree of accuracy, mainly utilising audio and vibration stimuli, and reported specifically that the immersive audio and vibration improved realism and increased their ability to diagnose system failures from a remote location

    Listening to the magnetosphere: How best to make ULF waves audible

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    Observations across the heliosphere typically rely on in situ spacecraft observations producing time-series data. While often this data is analysed visually, it lends itself more naturally to our sense of sound. The simplest method of converting oscillatory data into audible sound is audification—a one-to-one mapping of data samples to audio samples—which has the benefit that no information is lost, thus is a true representation of the original data. However, audification can make some magnetospheric ULF waves observations pass by too quickly for someone to realistically be able to listen to effectively. For this reason, we detail various existing audio time scale modification techniques developed for music, applying these to ULF wave observations by spacecraft and exploring how they affect the properties of the resulting audio. Through a public dialogue we arrive at recommendations for ULF wave researchers on rendering these waves audible and discuss the scientific and educational possibilities of these new methods

    Roads in You

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    Roads in You is an interactive biometric-data artwork that allows participants to scantheir veins and find the roads that match their vein lines. The roads resemble how ourvein lines are interconnected and how the blood circulates in our bodies in variousdirections, at various speeds, and in different conditions. This new artwork exploresthe line segmentation and the structure of veins and compares them to roads in thereal world. This artwork includes biometric data sonification on top of 3D map-basedvisualization and 3D printed sculptures. The vein lines are transformed to sound, andthe participants can listen to their unique “audio signature” generated by their veins.By using various visual features extracted by image processing techniques, thebranches, length of lines, size of veins, brightness, and contrast of images determineparameters of audio synthesis and create a unique and personalized sound for eachparticipant

    The Heart Auscultation. From Sound to Graphical

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    Heart sounds and murmurs have very small amplitude and frequency signals thus make it so difficult to hear without the correct tools. In clinical practice currently, physicians listen to the patient heart sound and murmurs by using the traditional technique as an example mechanical stethoscope which having low accuracy and could lead to the false diagnosis. Moreover, conventional method has no ability to record the sound measured. Worst still it is totally depending on the physician’s skills and experienced which this ability is decreased over time. This issue is highly important in early detection of heart sound abnormal. The stereo heart auscultation purposed in this research is to provide solutions rise from conventional technique. Furthermore, the sound signals produced from heart will be converted to the real-time graphically presented with time-frequency analysis, which provides more information about the heart conditions by sound produced. The system compromise hardware such as electrical transducer, electronic circuit, data-acquisition device, computer and also software for signal visualization or imaging. Database of heart sound and murmurs use to validate the developmental system replacing true patients. It has been demonstrated, in preliminary result, that heart sound classification according to on types of a valve problem such as aortic regurgitation, mitral regurgitation, tricuspid regurgitation, aortic stenosis and pulmonic stenosis could be differentiated using the development measurement system

    Active and Passive Acoustic Methods for In-situ Monitoring of the Ocean Status

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    Recent European strategic plans for the successful monitoring of the status of the ocean push on the development of an integrated observing system able to further link existing instruments and techniques with the aim to complement each other and answer open issues. A more intensive use of acoustic devices could contribute to the knowledge of oceanographic processes exploiting the characteristic of sound to travel in the ocean for a wide area than in the atmosphere. In this context, the installation of passive acoustic instruments, able to listen to ambient noise on fixed or mobile platforms, could contribute to provide information on sound budget and to enhance the monitoring capacity of meteorological phenomena also in the open ocean. Instead, the deployment of active acoustic instruments can be of benefit for monitoring biological activities through the analysis of backscatter data as well as for monitoring ocean waves
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