Devendra S. Chaudhari

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Persons with sensorineural hearing impairment face a particular problem in view of decrease in frequency resolving capacity of the auditory system due to spread of spectral masking along the cochlear partition. Filtering speech signal by a filter bank and adding signals from alternate bands and presenting it to the two ears is likely to reduce the effect of(More)
Reduction in frequency resolving capacity of the auditory system due to spread of masking of frequency components by neighboring frequency components degrades speech perception in cases of sensorineural hearing impairment. We have carried out experimental evaluation of splitting speech into two signals by using a bank of critical band filters, in order to(More)
In many face recognition systems the important part is face detection. The task of detecting face is complex due to its variability present across human faces including color, pose, expression, position and orientation. So using various modeling techniques it is convenient to recognize various facial expressions. In the field of image processing it is very(More)
Sensorineural hearing impaired listeners face a particular problem in view of dwrease in frequency resolving capacity of ear due to spread of spectral masking along the cochlear partition. Filtering speech signal by bank of critical band fil[crs and adding signals from alternate bands for presenting to the two ears, is likely to reduce this effect, and thus(More)
In order to the find the close association between the density of data points, in the given data set of pixels of an image, clustering provides an easy analysis and proper validation. In this paper various clustering techniques along with some clustering algorithms are described. Further k-means algorithm, its limitations and a new approach of clustering(More)
—This paper deals with different approaches to design Phase Locked Loop (PLL) frequency synthesizer. PLL system responds to both frequency and phase of the input signals, automatically raising or lowering the frequency of controlled oscillator until it is matched to the reference in both frequency and phase. The performance of PLL frequency synthesizer is(More)
— Phase locked loop (PLL) is a control system that generates a signal having a fixed relation with the phase of a reference signal. This system responds to both frequency and phase of the input signals, automatically raising or lowering the frequency of a controlled oscillator until it is matched to the reference in both frequency and phase. The performance(More)
In case of sensorineural impairment, the reduced frequency resolution in the peripheral auditory system due to spread of masking of a frequency component by adjacent frequency components degrades speech perception. Speech processing by a bank of critical band filters and adding signals from alternate bands for presenting odd numbered critical bands to one(More)
Human emotions are an important part of our life. We express our feelings through emotions. Recognition and validation of human emotions have become important for improving the overall human computer interaction. Emotion Recognition is a progressive research area and plays an important role in Computer interaction. For any Emotions Recognition, it is(More)