Sanjeev Kumar Dhull

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Changes in organic C, total N, C:N ratio, activities of cellulase, xylanase and protease, and microbial population were determined during composting of different organic wastes such as mixture of sugarcane trash and cattle dung, press mud, poultry waste and water hyacinth biomass. There were losses of N in poultry waste and water hyacinth with the effect an(More)
The Conventional acoustic echo canceller encounters problems like slow convergence rate (especially for speech signal) and high computational complexity as the identification of the echo path requires filter with more than a thousand taps, non-stationary speech input, slowly time-varying systems to be identified. The demand for fast convergence and less MSE(More)
Acoustic Source Localization (ASL) means to estimate the position of the source, emitting sound. It has a wide application area. Based upon the literature survey, ASL techniques have been broadly classified as Time Delay Estimation (TDE), Beamforming, High Spectral Resolution, Energy aware and Binaural based. There are different methods based upon these(More)
An overview of acoustic echo cancellation systems is presented. First the basics of echo’s, type of echo’s , why echo canceller are required and what are the difference between echo canceller are explained then the application where they can be used is discussed.. This paper presents applications of acoustic echo control and shows most recent solutions. For(More)
An overview of acoustic echo cancellation systems is presented. First the basics of echo's, type of echo's , why echo canceller are required and what are the difference between echo canceller are explained then the application where they can be used is discussed.. This paper presents applications of acoustic echo control and shows most recent solutions. For(More)
The calculation of time delay between a signal and its echo received at a microphone has been proven to be a useful parameter. Speech enhancement, speaker localization, speech and speaker recognition are few applications of TDE methods. We are implementing various methods for the estimation of time delay. These methods are implemented in MATLAB. The reason(More)
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