Devendra S. Chaudhari

Learn More
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)
The man-machine relation has demanded the smart trends that machines have to react after considering the human emotional levels. The technology boost improved the machine intelligence that it gained the capability to identify human emotions at expected level. Harnessing the approaches of signal processing and pattern recognition algorithms a smart and(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 decrease in frequency resolving capacity of ear due to spread of spectral masking along the cochlear partition. Filtering speech signal by bank of critical band filters and adding signals from alternate bands for presenting to the two ears, is likely to reduce this effect, and(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)
Persons with sensorineural hearing impairments experience difficulty in using the audio part of the multimedia information. Degraded frequency selectivity of the ear, due to increase in spectral masking along the cochlear partition, results in degraded speech perception. Splitting the speech signal by filtering it with a filter bank and adding signals from(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)