In my previous work, content-free topic segmentation is approached by classification methods, and the unit is Vocalization [6]. Speaker ID, vocalization start time, vocalization duration, pause, overlaps and their corresponding Horizon features are emphasized. This followed an approach to segmentation and classification introduced by Luz [2, 3] for analysing recordings of multidisciplinary medi...

Frog identification based on their calls becomes important for biological research and environmental monitoring. However, identifying particular frog calls becomes challenging particularly when the frog calls are interrupted with noises either in natural background noise or man-made noise. Hence, an automatic identification frog call system that robust in noisy environment has been proposed in ...

This paper proposes a new hybrid method in non-uniform sampling coding that uses adaptive filters as like zero-crossing and correlation. In speech signals, the modified zero-crossing rate method refers to the number of times in which the signal crosses zero in frame, the rate is high in noisy parts but low in voiced signal or unvoiced signal. And the correlation is high in voiced signals, low i...

Speaker recognition is the identification of the person who is speaking by the characteristics of their voices. Assamese is a Indo-Aryan family of languages, mainly spoken in the North-Eastern of India. In this paper text dependent speaker modelling technique is used. The system contains training phase, the testing phase and the recognition phase. The database consists of utterance of 10 speake...

One of the many issues with developing modern applications is to keep the spikes and EMI at a minimum, especially when switching AC mains in and out. Most of today’s new applications are controlled by one or more microcontrollers and this gives the possibility to prevent this noise in a simple and cost efficient way. Noise produced during switching is dependent on the amplitude of the AC sinus ...

In this paper, we present a novel principal component analysis (PCA) based approach towards modeling the object trajectory in a video clip. An eigenspace decomposition of highdimensional trajectory data leads to very compact representation, which is then used as indexing structure. To cutback on PCA computation during indexing, we first segment the trajectories into atomic subtrajectories using...

In airborne AC power system, input current may distort at the vicinity of input voltage zero crossing in Power Factor Correction (PFC) converter. This paper is analyzed the essential causes of the zero-crossing distortion and points out that the major causes are the value of inductor and the phase displacement between input current and input voltage. By adopting parallel interleaving technique,...

Design of switched capacitor circuits in scaled CMOS technologies is becoming difficult because of low device intrinsic gain and reduced power supply voltage. To solve these problems, comparator-based switched-capacitor (CBSC) circuits and zero-crossing based circuits (ZCBC) were suggested as a possible solution to the op-amp based circuits. In this thesis, we explore zero-crossing based circui...

The importance of QRS detection results from the wide use of the timing information of this component, e.g., in heart rate variability analysis, ECG classification, and ECG compression. In most cases, the temporal location of the R-wave is taken as the location of the QRS complex. Missed or falsely detected beats are problematic in all of these applications and may lead to poor results. The lit...

A novel zero-crossing tracking strain estimator (ZCT) has been developed for elastography. This technique is based on tracking the zero-crossings between the pre- and postcompression A-lines, and does not require global or adaptive A-line stretching. For multicompression elastography, ZCT can be implemented as a tracking scheme, where a temporal track of the zero-crossings between successive ra...