Abhijit Karmakar

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E-learning is now one important issue to spread higher education in our society. This new education strategy gathers knowledge and education both by synchronous and asynchronous methodologies to effectively face the need to rapidly acquire up to date know-how within productive environments. In the present review paper the authors discusses on e-learning(More)
This paper proposes an improved multi-band spectral subtraction algorithm with the goal of improving the quality of speech signal in various noise environments. In the proposed enhancement algorithm, the whole speech spectrum is divided into different uniformly spaced continuous frequency bands and spectral over-subtraction is performed independently , in(More)