Navarun Gupta

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Big Data has shown lot of potential in real world industry and research community. We support the power and potential of it in solving real world problems. However, it is imperative to understand Big Data through the lens of 7 V’s. 7th V as ‘Value’ is desired output for industry challenges and issues. We provide a brief survey study of 7 Vs of Big Data in(More)
The use of Head-Related Transfer Functions (HRTFs) in creating 3D sounds is gaining wide acceptance in multimedia applications. This paper presents a new method of modeling HRTFs based on the shape and size of the outer ear. Using signal processing tools, such as Prony’s signal modeling method, an appropriate set of time delays and a resonant frequency were(More)
Head Related Transfer Functions (HRTFs) are signal processing models that represent the modifications undergone by the acoustic signal as it interacts with the listener's body. HRTFs can be used to generate binaural sound as they contain all the information about the sound source's location. This paper describes a database of head-related transfer functions(More)
Research into pronunciation and acoustic properties of foreign speech have evolved with technology and produced interesting results. The production of English vowel sounds by native Mandarin and Hindi speakers were investigated. The first three formant frequencies (F1, F2) and the mean and standard deviation values are calculated. The goal of this study is(More)
Head-Related Transfer Functions (HRTFs) are commonly used to impose a virtual location of origin to mono-aural digital sounds. In listening tests, however, subjects tend to confuse the virtual location of sounds from the front hemisphere with symmetric locations in the back hemisphere, and vice versa, in an effect called “Cone of Confusion”.(More)
In order to achieve full binaural sound, audio signals must be synthesized using specialized digital filters characterized by their so-called Head-Related Impulse Responses (HRIRs). They represent the modification to sound due to the listener’s torso, shoulders, head and pinnae, or outer ears. Conventional methods of measuring individual HRIRs require the(More)
Head-Related Impulse Responses (HRIRs) are used in signal processing to model the synthesis of spatialized audio which is used in a wide variety of applications, from computer games to aids for the vision impaired. They represent the modification to sound due to the listener’s torso, shoulders, head and pinnae, or outer ears. As such, HRIRs are somewhat(More)
Currently, to obtain maximum fidelity 3D audio, an intended listener is required to undergo time consuming measurements using highly specialized and expensive equipment. Customizable Head-Related Impulse Responses (HRIRs) would remove this limitation. This paper reports our progress in the first stage of the development of customizable HRIRs. Our approach(More)
Ethosomes are as novel vesicles in transdermal drug delivery show significant effects of drug penetration through the biological membrane with slight modification of well established drug carrier liposomes. Ethosomes are soft, malleable vesicles composed mainly of phospholipids, ethanol and water. The size of ethosome vesicles can be modulated from tens of(More)
The Measurement of radio wave propagation into and within buildings at 900 and 1800 MHz frequencies have been undertaken using the library building at the University of Bridgeport campus in CT, USA. Furthermore, the signal propagation for the cases into and within elevator has also been investigated. Signal loss is a major problem for cellular wireless(More)