where sn,t is the amount of contribution of the n basis function in the t observation. There are methods which use fixed basis functions, but recently, many algorithms for the estimation of adaptive representations have been proposed, and they have been successfully used in several applications. For example, independent component analysis (ICA) estimates the basis functions by finding a decompo...

Dissection hall teaching, which is a backbone of teaching and learning Anatomy, is suffering a lot due to dearth of faculty members as MCI has reduced the number of teachers required per hundred students. In lack of proper guidance and clear instructions students are gradually losing interest in dissection, therefore we thought of using audio-visual aid as an adjunct for Dissection hall teachin...

A qualitative study using in-depth interviews was carried out among patients and doctors working in a private hospital in Tamil Nadu, to understand perceptions of informed consent. Audio-recorded interviews were transcribed verbatim and a framework analytical approach was used in analysis. Emergent themes ranged from perceptions on informed consent, and discussing health concerns and decision m...

Locomotion generates multisensory information about walked-upon objects. How perceptual systems use such information to get to know the environment remains unexplored. The ability to identify solid (e.g., marble) and aggregate (e.g., gravel) walked-upon materials was investigated in auditory, haptic or audio-haptic conditions, and in a kinesthetic condition where tactile information was perturb...

The AVLaughterCycle project aims at developing an audiovisual laughing machine, able to detect and respond to user’s laughs. Laughter is an important cue to reinforce the engagement in humancomputer interactions. As a first step toward this goal, we have implemented a system capable of recording the laugh of a user and responding to it with a similar laugh. The output laugh is automatically sel...

The protection of multimedia data has become a necessity due to the generation of illegal copies, thus, the purpose of this article was to analyze and evaluate the algorithm of two-set in embedding a watermark into an audio signal. Metrics were analyzed as the Perceptual Evaluation of Audio Quality (PEAQ) by calculating the Objective Difference Grade (ODG) to verify the inaudibility of the wate...

The usual methodology used in magnetotelluric signal processing (MT) has been studied and applied to the case of audio-magnetotellourics (AMT). The results obtained have proved not to be good enough in order to obtain a good subsurface resistivity model. Therefore, some changes have been made to the methodology of signal processing so that it suits audio-magnetotellurics. These changes have app...

A driver’s awareness while on the road is a critical factor in his or her ability to make decisions to avoid hazards, plan routes and maintain safe travel. Situational awareness is gleaned not only from visual observation of the environment, but also the audible cues the environment provides police sirens, honking cars, and crosswalk beeps, for instance, alert the driver to events around them. ...

A general-purpose virtual audio system called the Audio Reality Engine (ARE) is proposed in this paper. Based on the investigation of the addition of spatial-localized sound to virtual environments, we discuss in detail the design and implementation techniques, including HRTF model based on neural network, the simulation of moving sound sources, the simulation of Doppler effects, and room acous...